WO2009053587A2 - Composition containing a polycondensate, polycondensate and cosmetic treatment method - Google Patents

Abstract

The invention relates to a cosmetic or pharmaceutical composition, in particular a make-up composition, containing a polycondensate that can be obtained by reacting: polyol having 3 to 6 hydroxyl groups; saturated or unsaturated, non-aromatic monocarboxylic acid; aromatic monocarboxylic acid having 7 to 11 carbon atoms; and polycarboxylic acid selected from among polycarboxylic acids containing at least one heteroatom selected from O, N and/or S, sugar-derived polycarboxylic acids, itaconic anhydride, 1,4-monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid and polycarboxylic amino acids, and/or the anhydrides thereof, and/or a lactone containing at least one COOH group. The invention also relates to a cosmetic treatment method using said composition and to the polycondensate defined above.

Description

 Composition comprising a polycondensate, said polycondensate and a cosmetic treatment process

The present invention relates to novel polymers of the family of modified alkyd polycondensates, as well as to their use in cosmetic compositions, in particular in lipsticks, to cosmetic compositions containing them and to processes for the preparation of said polycondensates.

There are many cosmetic compositions for which gloss properties of the deposited film, after application to keratin materials (skin, lips, phage), are desired. Examples include lipsticks, nail polish or some hair products. In order to obtain such a result, it is possible to associate particular raw materials, especially lanolins, with so-called brilliant oils, such as polybutenes which however have a high viscosity; or esters of fatty acid or alcohol whose carbon number is high; or some vegetable oils; or esters resulting from the partial or total esterification of an aliphatic compound hydroxylated with an aromatic acid, as described in the patent application EP1097699. It is also known to associate lanolines with polyesters obtained by block reaction of castor oil with isostearic acid and then with succinic acid, as described in patent US6342527. To improve the gloss of the deposited film, as well as its resistance, it has also been proposed to use esters resulting from the condensation of a polyol with a "neo" type carboxylic acid, especially in FR2838049. EP1457201, which describes a composition combining a polyester of triglycerides of hydroxylated carboxylic acids and a low molecular weight oil selected from polybutylenes, hydrogenated polyisobutylenes, hydrogenated or non-hydrogenated polydecenes, copolymers of vinylpyrrolidones, linear fatty acids, hydroxylated esters, esters of fatty alcohols or of C24-C28 branched fatty acids, silicone oils and / or oils of vegetable origin. In the patent application EP792637 there is disclosed a composition associating an aromatic ester and a polybutene or polyisobutene type polymer.

Patent Application EP1155687 describes a process consisting in incorporating, in an oily phase consisting of a cosmetically acceptable oil, an organopolysiloxane having at least 2 groups capable of establishing hydrogen bonds.

However, these compositions and combinations, even if they improve the gloss significantly, are still considered insufficient in a long-term perspective of this brightness, over time.

The object of the present invention is to provide novel polymers which can impart significant gloss to a particularly film-forming deposit, while maintaining good durability in the process. time of this brilliance; this may find a particularly advantageous application in the field of lipsticks lips. Furthermore, it is also desired polymers can further advantageously confer on the composition an excellent behavior over time on keratin materials, especially on the lips.

To this end, the Applicant has researched new polycondensates of alkyd type, having the desired properties.

Alkyd resins constitute a particular class of polyesters by being the reaction product of polyols and polycarboxylic acids, generally modified with unsaturated fatty acids, such as oleic acid, or with unsaturated oils, soybean oil or castor for example, which can modulate their film-forming properties, including their drying speed, hardness, strength.

Thus, it has been proposed in US2915488 modified alkyd resins in which a portion of the fatty acids from the soybean oil has been replaced by benzoic acid. These new resins have improved properties in terms of resistance to alkalis and detergents; the films containing them dry faster and are harder. However, no application, in particular cosmetic or topical, has been envisaged for these resins. In addition, the fatty acids present in soybean oil mainly consist of two unsaturated fatty acids: approximately 55% of linoleic acid (C18: 2) and 28% of oleic acid (C18: 1), according to "Surface Coatings Science and Technology ", ^2nd edition, JOHN WILEY & Sons, pages 104 and 105. However, it is known that certain unsaturated fatty acids can undergo, over time, an autooxidation which can be at the origin of rancidity phenomena. which can lead to problems of preservation of the compositions comprising these raw materials. In addition, the alkyd resins described in US2915488, which comprise a high proportion of linoleic and oleic fatty acids, are not optimal, particularly in terms of stability, for use in cosmetics.

The crosslinking of alkyd resins by air oxidation with the formation of hydroperoxides plays a key role in the drying rate of the film, and hence in its ultimate properties of hardness and resistance to external attack. In the usual fields of application of these alkyd resins, namely paints, the rate of crosslinking, and hence of drying, is generally accelerated by addition of particular metal salts, referred to as "driers", such as naphthenates and cobalt octanoates which accelerate the decomposition of hydroperoxides; This is particularly described in Principles of Polymerization, ^4th edition, JOHN WILEY & SONS, 737-738 pages and also in Surface Coatings Science and Technology, ^2nd edition, JOHN WILEY & SONS, tables 2.3 and 2.4 pages 526-530. However, the use of such metal salts is obviously not desirable in cosmetics for obvious reasons of toxicity.

On the other hand, most alkyd resins do not have adequate solubility in oily media usually used in cosmetics, such as vegetable oils, alkanes, fatty esters, fatty alcohols, silicone oils, and especially including isododecane, Parleam, isononyl isononanoate, octyldodecanol phenyl trimethicone, C12-C15 alkyl benzoate and / or D5 (decamethylcyclopentasiloxane).

After extensive research, the Applicant surprisingly and unexpectedly discovered that certain polycondensates with a high content of particular carboxylic acids could lead to improved performances in terms of gloss, maintenance of said gloss, and, in addition keeping the film obtained, while being conveyable in the usual cosmetic media, including the usual cosmetic oily media.

The present invention therefore relates to a cosmetic or pharmaceutical composition comprising, in a cosmetically or pharmaceutically acceptable medium, at least one polycondensate obtainable by reaction:

from 10 to 30% by weight, relative to the total weight of the polycondensate, of at least one polyol comprising 3 to 6 hydroxyl groups;

from 30 to 80% by weight, relative to the total weight of the polycondensate, of at least one linear, branched and / or cyclic, saturated or unsaturated non-aromatic monocarboxylic acid comprising 6 to 32 carbon atoms;

from 0.1 to 10% by weight, relative to the total weight of the polycondensate, of at least one aromatic monocarboxylic acid comprising 7 to 11 carbon atoms, optionally further substituted with 1 to 3 alkyl radicals, saturated or unsaturated, linear, branched and / or cyclic, which contain 1 to 32 carbon atoms;

from 1 to 40% by weight, relative to the total weight of the polycondensate, of at least one polycarboxylic acid chosen from a given group; and / or a cyclic anhydride of such a polycarboxylic acid, and / or a lactone comprising at least one COOH group.

Another subject of the invention is a polycondensate that can be obtained by reacting the monomers defined above.

In particular, the cosmetic compositions have good applicability and good coverage; good adhesion to the support, whether on the nail, hair, eyelashes, skin or lips; adequate flexibility and film strength, to avoid cracking, for example in the case of varnishes or lipsticks; as well as an excellent level of lasting shine. The comfort and slip properties are also very satisfying. These polycondensates are easily transportable in solvent or oily cosmetic media, especially oils, fatty alcohols and / or fatty esters, which facilitates their implementation in the cosmetics field, especially in lipsticks or foundations. . The polycondensates according to the invention can be prepared easily, in a single synthesis step, and without generating waste, this at low cost. Moreover, it is easily possible to modify the structure and / or the properties of the polycondensates according to the invention, by varying the chemical nature of the various constituents and / or their proportions.

The polycondensates according to the invention are advantageously branched (branched); it can be thought that this makes it possible to generate a network by entanglement of the polymer chains, and thus to obtain the desired properties, in particular in terms of improved behavior, improved gloss, and in terms of solubility. It has indeed been found that the linear polycondensates did not make it possible to obtain a significant improvement in the strength of the composition, and that the dendrimer polycondensates, whose chains are regular, did not exhibit optimum solubility.

The polycondensates according to the invention are polycondensates of alkyd type, and are therefore likely to be obtained by esterification / polycondensation, according to methods known to those skilled in the art, constituents described below.

One of the constituents necessary for the preparation of the polycondensates according to the invention is a compound comprising 3 to 6 hydroxyl groups (polyol), in particular 3 to 4 hydroxyl groups. It is of course possible to use a mixture of such polyols. Said polyol may especially be a hydrocarbon compound, in particular linear, branched and / or cyclic, saturated or unsaturated, comprising 3 to 18 carbon atoms, especially 3 to 12 or even 4 to 10 carbon atoms, and 3 to 6 groups. hydroxy (OH), and may further comprise one or more oxygen atoms intercalated in the chain (ether function). Said polyol is preferably a saturated hydrocarbon compound, linear or branched, comprising 3 to 18 carbon atoms, especially 3 to 12 or even 4 to 10 carbon atoms, and 3 to 6 hydroxyl groups (OH).

It can be chosen from, alone or in mixture:

triols, such as 1, 2,4-butanetriol, 1, 2,6-hexanetriol, trimethylolethane, trimethylolpropane, glycerol;

tetraols, such as pentaerythritol (tetramethylolmethane), erythritol, di-glycerol or dithmethylolpropane;

pentols such as xylitol,

hexols such as sorbitol and mannitol; or dipentaerythritol or triglycerol.

Preferably, the polyol is selected from glycerol, pentaerythritol, diglyceryl, sorbitol and mixtures thereof; and even better is pentaerythritol.

The polyol, or polyol mixture, preferably represents 10 to 30% by weight, especially 12 to 25% by weight, and more preferably 14 to 22% by weight, of the total weight of the final polycondensate. Another constituent necessary for the preparation of the polycondensates according to the invention is a saturated or unsaturated, linear, branched and / or cyclic non-aromatic monocarboxylic acid comprising 6 to 32 carbon atoms, in particular 8 to 28 carbon atoms, and even better 10 to 24 or even 12 to 20 carbon atoms. Of course, a mixture of such nonaromatic monocarboxylic acids can be used.

By non-aromatic monocarboxylic acid is meant a compound of formula RCOOH, in which R is a linear, branched and / or cyclic saturated or unsaturated hydrocarbon radical comprising 5 to 31 carbon atoms, especially 7 to 27 carbon atoms, and still more preferably 9 to 23 carbon atoms, or even 11 to 19 carbon atoms.

Preferably, the radical R is saturated. Even better, said radical R is linear or branched, and preferably C5-C31, or even C11-C21. In a particular embodiment of the invention, the nonaromatic monocarboxylic acid has a melting point greater than or equal to 25 ° C, especially greater than or equal to 28 ° C, or even 30 ^° C; it has indeed been found that when such an acid is used, in particular in large quantities, it is possible, on the one hand, to obtain a good gloss and the holding of said gloss, and on the other hand to obtain reduce the amount of waxes usually present in the composition envisaged.

Among the nonaromatic monocarboxylic acids that may be used, mention may be made, alone or as a mixture, of: saturated monocarboxylic acids such as caproic acid, caprylic acid, isoheptanoic acid, acid ethylpentanoic acid, 2-ethylhexanoic acid, 4,5-dimethylhexanoic acid, 2-heptylheptanoic acid, 3,5,5-trimethylhexanoic acid, octanoic acid, isooctanoic acid, nonanoic, decanoic acid, isononanoic acid, lauric acid, tridecanoic acid, myristic acid, palmitic acid, stearic acid, isostearic acid, arachidic acid , behenic acid, cerotic acid (hexacosanoic acid); cyclopentanecarboxylic acid, cyclopentaneacetic acid, 3-cyclopentylpropionic acid, cyclohexanecarboxylic acid, cyclohexylacetic acid, 4-cyclohexylbutyric acid; unsaturated but nonaromatic monocarboxylic acids, such as caproleic acid, obtusilic acid, undecylenic acid, dodecylenic acid, linderic acid, myristoleic acid, physétérique acid, tsuzuique acid , palmitoleic acid, oleic acid, petroselinic acid, vaccenic acid, elaidic acid, gondoic acid, gadoleic acid, erucic acid, cetoleic acid, nervonic acid , linoleic acid, linolenic acid, arachidonic acid.

Among the nonaromatic monocarboxylic acids having a melting temperature greater than or equal to 25 ° C., mention may be made, alone or as a mixture: - Among the saturated monocarboxylic acids: decanoic acid (capric), lauric acid, tridecanoic acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, cerotic acid (hexacosanoic); - Of the unsaturated but nonaromatic monocarboxylic acids: petroselinic acid, vaccenic acid, elaidic acid, gondoic acid, gapeolar acid, erucic acid, nervonic acid.

Preferably, it is possible to use 2-ethylhexanoic acid, isooctanoic acid, lauric acid, myristic acid, isoheptanoic acid, isononanoic acid, nonanoic acid, palmitic acid, isostearic acid, stearic acid, behenic acid and mixtures thereof, and even better isostearic acid alone or stearic acid alone.

Said nonaromatic monocarboxylic acid, or the mixture of said acids, is preferably 30 to 80% by weight, especially 40 to 75% by weight, or even 45 to 70% by weight, and more preferably 50 to 65% by weight, of the total weight. of the final polycondensate.

Another constituent necessary for the preparation of the polycondensates according to the invention is an aromatic monocarboxylic acid comprising 7 to 11 carbon atoms, optionally further substituted with 1 to 3 alkyl radicals, saturated or unsaturated, linear, branched and / or cyclic, which comprise 1 to 32 carbon atoms, especially 2 to 12 or even 3 to 8 carbon atoms. It is of course possible to use a mixture of such aromatic monocarboxylic acids. By aromatic monocarboxylic acid is meant a compound of formula R'COOH, in which R 'is an aromatic hydrocarbon radical containing 6 to 10 carbon atoms, and in particular the benzoic and naphthoic radicals. Said radical R 'may also be substituted with 1 to 3 saturated or unsaturated, linear, branched and / or cyclic alkyl radicals comprising 1 to 32 carbon atoms, especially 2 to 12 or even 3 to 8 carbon atoms. ; and especially chosen from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, terbutyl, pentyl, isopentyl, neopentyl, cyclopentyl, hexyl, cyclohexyl, heptyl, isoheptyl, octyl or isooctyl. Of the aromatic monocarboxylic acids which may be used, mention may be made, alone or as a mixture, of benzoic acid, o-toluic acid, m-toluic acid, p-toluic acid, acid 1 naphthoic acid, 2-naphthoic acid, 1-tert-butyl-benzoic acid, 1-methyl-2-naphthoic acid, 2-isopropyl-1-naphthoic acid. Preferably, benzoic acid, 4-tert-butylbenzoic acid, o-toluic acid, m-toluic acid, 1-naphthoic acid may be used alone or in mixtures; and even better, benzoic acid alone.

Said aromatic monocarboxylic acid, or the mixture of said acids, is preferably 0.1 to 10% by weight, especially 0.5 to 9.95% by weight, better still 1 to 9.5% by weight, or even 1.5 to 8% by weight, of the total weight of the final poly-condensate.

Another constituent necessary for the preparation of the polycondensates according to the invention is a polycarboxylic acid chosen from, alone or as a mixture:

(i) linear or branched chain saturated or unsaturated polycarboxylic acids comprising at least one heteroatom selected from O, N and / or S, in particular 1 to 10 identical or different heteroatoms, and / or comprising at least one perfluorinated radical; -CF ₂ - or -CF ₃ and also having at least 2 carboxyl groups COOH, especially 2 to 4 COOH groups; and / or a cyclic anhydride of such a polycarboxylic acid and / or

(ii) heterocyclic polycarboxylic acids, saturated or unsaturated, or even aromatic, comprising at least one heteroatom selected from O, N and / or S, in particular 1 to 10, or even 1 to 4 identical or different heteroatoms, and at least 2 groups; carboxylic acids COOH, especially 2 to 4 COOH groups; and / or a cyclic anhydride of such a polycarboxylic acid and / or - (iii) polycarboxylic acids derived from sugar, obtainable in particular by oxidation of an aldose, and comprising at least 2 carboxylic groups COOH, in particular 2 or 3 COOH groups; and / or a cyclic anhydride of such a polycarboxylic acid and / or - (iv) itaconic anhydride and 1,4,5,8-naphthalenetracarboxylic acid 1,4-monoanhydride. and or

(v) polycarboxylic amino acids (including heterocyclic acids), that is to say polycarboxylic acids with a saturated or unsaturated, linear, branched and / or cyclic chain, optionally comprising at least one heteroatom selected from O, N and or S, in particular 1 to 10 identical or different heteroatoms, and / or possibly comprising at least one perfluorinated radical -CF ₂ - or -CF ₃ ; and further comprising at least one primary, secondary or tertiary amine function (especially NR1 R2 with R1 and R2, independently of one another selected from H and C1-C12 alkyl), in particular 1 to 3 identical amino functions, or different, and also having at least 2 carboxylic groups COOH, especially 2 to 4 COOH groups; and / or a cyclic anhydride of such a polycarboxylic acid.

Said polycarboxylic acid may in particular be chosen from linear, branched and / or cyclic, saturated or unsaturated or even aromatic polycarboxylic acids, comprising 4 to 50, in particular 5 to 40, carbon atoms, in particular 5 to 36, or even 5 at 18, and even more preferably 5 to 12 carbon atoms; said acid comprising at least two carboxylic groups COOH, preferably 2 to 4 COOH groups and 1 to 10 heteroatoms, preferably 1 to 6, identical or different, chosen from O, N, S, and / or 1 to 2 perfluorinated radicals CF2 and / or CF3.

Said cyclic anhydride of such a polycarboxylic acid may in particular correspond to one of the following formulas:

dans lesquelles A et B pris ensemble forment un cycle comprenant au total 5 à14, notamment 6 à 10 atomes de carbone, saturé ou insaturé, voire aromatique. De préférence, A et B forment ensemble un cycle aromatique comprenant au total 10 atomes de carbone.

in which A and B taken together form a ring comprising in total 5 to 14, especially 6 to 10 carbon atoms, saturated or unsaturated, or even aromatic. Preferably, A and B together form an aromatic ring comprising a total of 10 carbon atoms.

Among the polycarboxylic acids, or their anhydrides, which may be used, mention may be made, alone or as a mixture, of the following dicarboxylic acids:

(i) - 2,2 '- [1,5-pentanediylbis (thio)] bis-acetic acid

6,6 '- [(1,2-dioxo-1,2-ethanediyl) diimino] bis-hexanoic acid

2,2'-sulfinylbisacetic acid

4,13-dioxo-3,5,12,14-Tetraazahexadecanedioic acid

Poly (ethylene glycol) disuccinate, in particular of mass 250-600 - poly (ethylene glycol) bis (carboxymethyl) ether, in particular of mass 250-600

Poly (oxy (1, 2-dicarboxy-1,2-ethanediyl)], in particular DP <10

- 8 - [(carboxymethyl) amino] -8-oxooctanoic acid

2,2 '- [methylenebis (sulfonyl)] bis-acetic acid

4,4 '- (1,6-hexanediyldiimino) bis [4-oxo-butanoic acid] - 4,9-dioxo-3,5,8,10-tetraazadodecanedioic acid

- 4 - [(1-carboxyethyl) amino] -4-oxo-butanoic acid

- 6 - [(3-Carboxy-1-oxopropyl) amino] hexanoic acid

N, N '- (1,6-dioxo-1,6-hexanediyl) bis-glycine

N, N '- (1,6-dioxo-1,6-hexanediyl) bis-phenylalanine - N, N' - (1,3-dioxo-1,3-propanediyl) bis-glycine

4,4 '- [(1,4-dioxo-1,4-butanediyl) diimino] bis-butanoic acid

4,4 '- [(1,6-dioxo-1,6-hexanediyl) diimino] bis-butanoic acid

- 6,6 '- [1,6-hexanediylbis (iminocarbonylimino)] bis-hexanoic acid

- N-benzoyl-S- (carboxymethyl) -cysteine - N, N '- (2,2,3,3-tetrafluoro-1,4-dioxo-1,4-butanediyl) bis-glycine

N, N '- (2,2,3,3-tetrafluoro-1,4-dioxo-1,4-butanediyl) bis-alanine

4,4 '- [(2,2,3,3-tetrafluoro-1,4-dioxo-1,4-butanoic acid)

N, N '- (1,5-dioxo-1,5-pentanediyl) bis-glycine

N, N '- (1, 9-dioxo-1, 9-nonanediyl) bis-Glycine - N, N' - (1,10-dioxo-1,10-decanediyl) bis [N-methylglycine] - The bis (3-carboxypropyl) ester of propanedioic acid

- 7,16-dioxo-6,8,15,17-Tetraazadocosanedioic acid

- N-benzoyl-N- (2-carboxyethyl) -Glycine

- [2 - [(2-carboxymethyl) amino] -2-oxoethyl] - benzenepropanoic acid - [2 - [(2-carboxyethyl) amino] -2-oxoethyl] - benzenepropanoic acid

(Ϋ)

- 4,7,9,12-Tetraoxapentadecanedioic acid

- 2,3-Pyridinedicarboxylic acid - 4-Pyranone-2,6-dicarboxylic acid

- 2,5-Pyrazinedicarboxylic acid

- 2,5-Pyridinedicarboxylic acid

- 2,3-Benzofurandicarboxylic acid

- 7-oxabicyclo [2.2.1] heptane-2,3-dicarboxylic acid - 3,4-Pyridinedicarboxylic acid

- 2,4-Pyridinedicarboxylic acid

- 3,5-Pyridinedicarboxylic acid

- 2,6-Pyridinedicarboxylic acid

- 1H-1midazole-4,5-dicarboxylic acid - 2,3-Quinolinedicarboxylic acid

- 6,6,7,7-tetrafluoro-3-Oxabicyclo [3.2.0] heptane-2,4-dicarboxylic acid

2,6-Pyrazinedicarboxylic acid

2,6-Dimethyl-3,5-pyridinedicarboxylic acid

- 1-phenyl-1H-Pyrazole-3,4-dicarboxylic acid - 2,5-Furanedicarboxylic acid

- 3,4-Furanedicarboxylic acid

- 1, 2,5-Thiadiazole-3,4-dicarboxylic acid

- 1,4-Dihydro-1,2,4,5-tetrazine-3,6-dicarboxylic acid

- 2,3-Furanedicarboxylic acid - 3,4-Thiophenedicarboxylic acid

- 1H-1, 2,3-Triazole-4,5-dicarboxylic acid

- 2-Methylimidazole-4,5-dicarboxylic acid

- 2,4-Quinolinedicarboxylic acid

- Naphtho [2,1-b] furan-1,2-dicarboxylic acid - 3,4-Quinolinedicarboxylic acid

- 7-Oxabicyclo [2.2.1] hept-5-ene-2,3-dicarboxylic acid

- 2,3-Quinoxalinedicarboxylic acid

- 1,4-Piperazinedicarboxylic acid

2,5-dimethyl-3,4-furandicarboxylic acid - tetrahydro-2,5-thiophenedicarboxylic acid

- 4-phenyl-3,5-pyridinedicarboxylic acid

- Thieno [3,2-b] thiophene-2,5-dicarboxylic acid

- 3-methyl-2,4-Thiophenedicarboxylic acid - Naphthostyril-5,6-dicarboxylic acid

- 3-phenyl-2,4-quinolinedicarboxylic acid

3,4-Dimethyl-2,5-dicarboxythiophene

3,4-Diphenyl-2,5-thiophenedicarboxylic acid - 2,5-diphenyl-3,4-furanedicarboxylic acid

7-oxo-7H-benzimidazo [2,1-a] benz [de] isoquinoline-3,4-dicarboxylic acid

- 2,3-Dihydro-1,3-dioxo-1H-Benz [de] isoquinoline-6,7-dicarboxylic acid

3,4-bis (phenylmethoxy) -2,5-furandicarboxylic acid

- 4,4'-Bibenzoic acid-2,2'-sulfone - 2,7-Diphenyl-m-anthrazoline-4,5-dicarboxylic acid

- 2,4-Pyrimidinedicarboxylic acid

- 2-Phenyl-4,5-thiazoledicarboxylic acid

- 6-phenyl-2,3-pyridinedicarboxylic acid

- 5,6-Dimethyl-2,3-pyrazinedicarboxylic acid - 3,7-Dibenzothiophenedicarboxylic acid

9-oxo-9H-Xanthene-1,7-dicarboxylic acid

2- (1,1-dimethylethyl) -H-imidazole-4,5-dicarboxylic acid

- 6,7-Quinolinedicarboxylic acid

- 6-Methyl-2,3-pyridinedicarboxylic acid - 4,5-Pyrimidinedicarboxylic acid

- 2-methyl-3,4-furanedicarboxylic acid

- 1, 2-Indolizinedicarboxylic acid

- 2,8-Dibenzothiophenedicarboxylic acid

- 3,6-Pyridazinedicarboxylic acid - 1,10-Phenanthroline-2,9-dicarboxylic acid

- 1, 4,5,6-tetrahydro-5,6-dioxo-2,3-pyrazinedicarboxylic acid

3,4-Dimethoxy-2,5-furandicarboxylic acid

- 2-Ethyl-4,5-imidazoledicarboxylic acid

- 2-Propyl-1H-imidazole-4,5-dicarboxylic acid - 4-phenyl-2,5-pyridinedicarboxylic acid

- 4,5-Pyridazinedicarboxylic acid

- 1, 4,5,8-Tetrahydro-1,4,5,8-Diepoxynaphthalene-4a, 8a-dicarboxylic acid

- 5,5-dioxide-2,8-Dibenzothiophenedicarboxylic acid

- Pyrazolo [1,5-a] pyridine-2,3-dicarboxylic acid - 2,3-Dihydro-1H-Pyrrolizine-1,7-dicarboxylic acid

- 6-methyl-2,4,5-pyridinetricarboxylic acid

- Pyrrolo [2,1,5-cd] indolizine-5,6-dicarboxylic acid

3,4-bis (2,2,3,3,4,4,4-heptafluorobutyl) -1H-pyrrole-2,5-dicarboxylic acid - Acid 6,7,9,10,17 , 18,20,21-octahydrodibenzo [b, k] [1,4,7,10,13,16] hexaoxacyclo-octadecine-2,14-dicarboxylic acid

6,7,9,10,17,18,20,21-octahydro-dibenzo [b, k] [1, 4, 7, 10, 13, 16] hexaoxacyclo octadecin-2, 13-dicarboxylic acid

- 2-methyl-3,4-Quinolinedicarboxylic acid - 4,7-Quinolinedicarboxylic acid

- 3,5-lsoxazoledicarboxylic acid

2- (trifluoromethyl) 3,4-furanedicarboxylic acid

- 5- (Trifluoromethyl) -2,4-Furanedicarboxylic acid - 6-methyl-2,4-quinolinedicarboxylic acid

- 5-oxo-1,2-pyrrolidinedicarboxylic acid

- 5-Ethyl-2,3-pyridinedicarboxylic acid

- 1, 2-Dihydro-2-oxo-3,4-quinolinedicarboxylic acid

- 4,6-Phenoxathiindicarboxylic acid - 10,10-dioxide 9,9-phenoxathiindicarboxylic acid

3,4-Dihydro-2H-1,4-thiazine-3,5-dicarboxylic acid

2,7-Di (tert-butyl) -9,9-dimethyl-4,5-xanthenedicarboxylic acid

- 6-methyl-2,3-quinoxalinedicarboxylic acid

- 3,7-Quinolinedicarboxylic acid - 2,5-Quinolinedicarboxylic acid

- 2-Methyl-6-phenyl-3,4-pyridinedicarboxylic acid

3,4-dimethylthieno [2,3-b] thiophene-2,5-dicarboxylic acid

3,4-Dimethoxythiophene-2,5-dicarboxylic acid

- 5-methyl-3,4-lsoxazoledicarboxylic acid - 2,6-bis (aminocarbonyl) -3,5-pyridinedicarboxylic acid

- 3,5-bis (aminocarbonyl) -2,6-pyrazinedicarboxylic acid

- 2,3-Pyridinedicarboxylic acid

6- (1,1-Dimethylethyl) -2-ethyl-3,4-pyridinedicarboxylic acid

- 3-methyl-5-phenyl-2,4-thiophenedicarboxylic acid - 1, 2-dihydro-2-oxo-6-phenyl-3,5-pyridinedicarboxylic acid

- 8-methyl-2,4-quinolinedicarboxylic acid

- 4-ethyl-2,6-dimethyl-3,5-pyridinedicarboxylic acid

- 5- (phenoxymethyl) -2,4-Furanedicarboxylic acid

5- (acetylamino) -3-methyl-2,4-thiophenedicarboxylic acid - 2- (4-heptylphenyl) -4,8-quinolinedicarboxylic acid

- 2,8-bis (4-heptylphenyl) -pyrido [3,2-g] quinoline-4,6-dicarboxylic acid

1, 2,3,4,6,7,8,9-octahydro-2,8-dioxo-pyrido [3,2] quinoline-3,7-dicarboxylic acid

- 2,8-Dimethyl-Pyrido [3,2-g] quinoline-3,7-dicarboxylic acid - 5,6-Quinolinedicarboxylic acid

- 6-ethyl-2-methyl-cinchomeronic acid

- 2-methyl-6-propyl-cinchomeronic acid

- 6-isopropyl-2-methyl-cinchomeronic acid

- 6-tert-butyl-2-methyl-cinchomonic acid - 1,4-dimethyl-7-oxabicyclo [2.2.1] heptane-2,3-dicarboxylic acid

- 1,2-Dihydro-2-oxo-3,8-quinoline dicarboxylic acid

- 1, 2-Dihydro-2-oxo-3,6-quinoline dicarboxylic acid

- 1, 2-Dihydro-2-oxo-3,7-quinoline dicarboxylic acid - 3,7-dimethyl-2,8-diphenyl-pyrido [3,2-g] quinoline-4,6-dicarboxylic acid

- 8-methyl-2,3-Quinolinedicarboxylic acid

3 - [[(1,1-Dimethylethyl) amino] sulfonyl] -2,5-thiophene dicarboxylic acid

4- (Acetylamino) -2,3-thiophenedicarboxylic acid - 2,5-Pyridinedicarboxylic acid

- 2,6-Pyridinedicarboxylic acid

- 2,4-Thiophenedicarboxylic acid

- 2,5-Thiophenedicarboxylic acid

- 1,4-pyran-2,6-dicarboxylic acid

(Iii)

- Ribarique acid

- Glucaric acid

- Xylaric acid - Arabinaric acid

- Mannaric acid

- Idaric acid

- Altraric acid

- L-Glucaric acid - L-Arabinaric acid

- Allaric acid

- Galactaric acid

- meso-Tartaric acid

- D-Glucaric acid - L-ldaric acid

- Hexaric acid

- 2,3-Dihydroxybutanedioic acid

- D-Tartaric Acid

- DL-Tartaric Acid - D-Glucaric Acid

- tartaric acid

- Tetrahydroxysuccinic acid

2-carboxy-2,3-dideoxy D-manno-2-octulopyranosonic acid

- Methyl 3-deoxy-D-arabino-2-heptulopyranosaric acid - D-lyxo-2-heptulopyranosaric acid

2,6-Anhydro-L-glycero-L-galacto-heptaric acid

(Iv)

1, 4,5,8-Naphthalenetetracarboxylic acid 1,4-monoanhydride - itaconic anhydride

(V)

1,4-dihydro-4-oxo-2,6-pyridinedicarboxylic acid 2,6-Piperidinedicarboxylic acid

1 H-Pyrrole-3,4-dicarboxylic acid

- 4-amino-2,6-dicarboxylic acid

- 1-methyl-1H-Pyrazole-3,4-dicarboxylic acid - 2,3-Piperidinedicarboxylic acid

1-methyl-1H-1-imidazole-4,5-dicarboxylic acid

2,4-Thiazolidinedicarboxylic acid

1- (phenylmethyl) -1H-1-imidazole-4,5-dicarboxylic acid

5-amino-6-oxo-2,3-piperidinedicarboxylic acid - 5-amino-6-oxo-2,4-piperidinedicarboxylic acid

5-amino-6-oxo-2,3-piperidinedicarboxylic acid

5-amino-6-oxc-, [2S- (2α, 4β, 5α)] -2,4-piperidinedicarboxylic acid

- (2S, 4R) -2,4-Pyrrolidinedicarboxylic acid

- (2S-cis) -2,4-Pyrrolidinedicarboxylic acid - 2-amino-1H-1-imidazole-4,5-dicarboxylic acid

- 2,5-Pyrrolidinedicarboxylic acid

4-amino-3,5-lsothiazoledicarboxylic acid

1-methyl-1H-Pyrazole-3,5-dicarboxylic acid

7- (diethylamino) -2-oxo-2H-1-benzopyran-3,4-dicarboxylic acid - 3,4-diethyl-1H-pyrrole-2,5-dicarboxylic acid

1-phenyl-1H-pyrrole-3,4-dicarboxylic acid

cis-2,3-Piperazinedicarboxylic acid

2,3-Piperazinedicarboxylic acid

- 2,5-Piperazinedicarboxylic acid - 2,6-Piperazinedicarboxylic acid

2-amino-3,5-pyridinedicarboxylic acid

2-methyl-pyrrole-3,4-dicarboxylic acid

4- (methylamino) -2,6-pyridinedicarboxylic acid

2-amino-6-methyl-3,4-pyridinedicarboxylic acid - 5-amino-2-methyl-3,4-pyridinedicarboxylic acid

2-amino-6-methyl-3,5-pyridinedicarboxylic acid

2,5-dimethyl-pyrrole-3,4-dicarboxylic acid

2,5-dimethyl-pyrrole-3,4-dicarboxylic acid

- 2-amino-6-hydroxy-3,5-pyridinedicarboxylic acid - 2,4-pyrrolidinedicarboxylic acid

1H -indole-2,4-dicarboxylic acid

1 H-indole-2,6-dicarboxylic acid

1H-lndole-2,5-dicarboxylic acid

- 5-phenyl-2,4-pyrrolidinedicarboxylic acid - 5-methyl-2,4-pyrrolidinedicarboxylic acid

trans-2,4-azetidinedicarboxylic acid

cis-2,4-azetidinedicarboxylic acid

- 3,5-Piperidinedicarboxylic acid 2,3-Pyrrolidinedicarboxylic acid

- 2,3-Azetidinedicarboxylic acid

3,4-Pyrrolidinedicarboxylic acid

2,3-dihydro-6H-1,4-dioxino [2,3-c] pyrrole-5,7-dicarboxylic acid - 1H-1-imidazole-2,4-dicarboxylic acid

1-butyl-1H-pyrrole-2,3-dicarboxylic acid

- 3-amino-1-oxide-2,4-pyridinedicarboxylic acid

2,3-dihydro-5-phenyl-1H-pyrrolizine-6,7-dicarboxylic acid

3a, 4,5,9b-tetrahydro-3H-cyclopenta [c] quinoline-4,6-dicarboxylic acid; 3a, 4,5,9b-tetrahydro-3H-cyclopenta [c] quinoline-4 acid; , 8-dicarboxylic

2,3-Dihydro-1H-1-imidazole-4,5-dicarboxylic acid

- 5-amino-6-methyl-Lutidinic acid

1H-lndole-3,7-dicarboxylic acid

3,3-dimethyl-2,6-piperidinedicarboxylic acid - 1-butyl-2,5-pyrrolidinedicarboxylic acid

1H-lndole-4,6-dicarboxylic acid

1- (phenylmethyl) -3,4-pyrrolidinedicarboxylic acid

3- (carboxymethyl) -1H-indole-2,6-dicarboxylic acid

3,4-bis (2,2,2-trifluoroethyl) -1H-pyrrole-2,5-dicarboxylic acid; 9-hexyl-9H-carbazole-3,6-dicarboxylic acid;

3-methyl-5- (1-piperazinylsulfonyl) -2,4-thiophenedicarboxylic acid

2,3,4,9-tetrahydro-1H-carbazole-5,7-dicarboxylic acid

2,3-dimethyl-1H-indole-4,6-dicarboxylic acid

7-amino-1,4-dihydro-4-oxo-3,6-quinolinedicarboxylic acid - 5-amino-3-methyl-2,4-thiophenedicarboxylic acid

- (m-tolylimino) di-Acetic acid

- (o-tolylimino) di-Acetic acid

- D-Cystathionine

- Phenethyliminodiacetic acid - 2-Benzyl-2,2'-iminodiacetic acid

L-α-glutamyl-L-alanyl-L-Alanine

N, N'-Dibenzylethylenediaminediacetic acid

N-L-gamma-glutamyl-D-Alanine

glycyl-L-glutamyl glycine - N- (carboxymethyl) -N- (tetrahydro-1,1-dioxido-3-thienyl) -Glycine

N- (2-carboxyethyl) -N-phenyl-beta-Alanine

N- (carboxymethyl) -N-octyl-glycine

N- (tert-Butoxycarbonyl) iminodiacetic acid

N- (carboxymethyl) -L-Alanine - N- (6-aminohexyl) -N- (carboxymethyl) -Glycine

N- (carboxymethyl) -N-tetradecyl-glycine

N- (1-carboxyethyl) -D-Alanine

N- (carboxymethyl) -D-Alanine decyliminodiacetic acid

3,3 '- (dimethylhydrazono) bis-propanoic acid

N- (carboxymethyl) -N- [2- (2,6-dioxo-4-morpholinyl) ethyl] -glycine

- N-alpha-aspartyl-glycine - N-beta-aspartyl-glycine

- N-L-alpha-aspartyl-beta-Alanine

3,4-Xylylamino-N, N-diacetic acid

N- (1-carboxyethyl) -Alanine

N- (carboxymethyl) -Alanine - N, N'-methylenebis-glycine

N- (aminomethyl) -N- (carboxymethyl) -glycine

N- (aminomethyl) -N- (carboxymethyl) -glycine

- 2,2 '- (methylhydrazono) bis-acetic acid

N- (2-carboxyethyl) -N- (4-methylphenyl) -beta-alanine - N- (2-carboxyethyl) -N- (3-methylphenyl) -beta-alanine

3 - [(carboxymethyl) amino] -Alanine

- D-alpha-aspartyl-D-Alanine

N- (2-carboxyethyl) -N- (1-oxohexadecyl) -beta-alanine

N- (2-carboxyethyl) -N- (1-oxodecyl) -beta-alanine - N- (2-carboxyethyl) -N- (1-oxotetradecyl) -beta-alanine

amino acid [(carboxymethyl) thio] - acetic acid

N, N'-1,6-hexanediylbis-beta-Alanine

N- (carboxymethyl) -N-phenyl-beta-Alanine

N- (i-carboxyethyl) -L-Alanine - L-glutamic acid

- L-aspartic acid.

The following tricarboxylic and tetracarboxylic acids and their anhydrides may also be mentioned alone or as a mixture: - 3,3 ', 3 "- [1,2,3-propanetriyltris (oxy)] acid propanoic

- Pyrazinetricarboxylic acid

4- (3-carboxyphenyl) -2,5-pyridinedicarboxylic acid

- 3- (carboxymethyl) -2,4-quinolinedicarboxylic acid

3- (carboxymethyl) -1H-indole-2,5-dicarboxylic acid - 3-C-carboxy-2-deoxy-D-threo-pentaric acid

- Hydroxycitric acid

D-glucopyranuronosyl-D-arabino-2-hexulofuranosidaric acid

- 2,3,5,6-Pyridinetetracarboxylic acid

N, N'-1, 2-ethanediylbis [N- (carboxymethyl) -β-alanine - L-α-aspartyl-L-Aspartic acid

4- [bis (carboxymethyl) amino] benzoic acid

7- [bis (carboxymethyl) amino] -Heptanoic acid

- N- (2-carboxyethyl) -Aspartic acid 3- [bis (2-carboxyethyl) amino] benzoic acid

4- [bis (2-carboxyethyl) amino] benzoic acid.

Preferably, 6,6 '- [(1,2-dioxo-1,2-ethanediyl) diimino] bishexanoic acid, 2,2'-sulphinylbisacetic acid, , 13-dioxo-3,5,12,14-tetraazahexadecanedioic acid, poly (ethylene glycol) disuccinate, poly (ethylene glycol) bis (carboxymethyl) ether, 8 - [(carboxymethyl) amino] -8-oxo octanoic acid, 2,2 '- [methylenebis (sulphonyl)] bis-acetic acid, 4,4' - (1,6-hexanediyldiimino) bis [4-oxo-butanoic acid], 4-acid, 9-dioxo-3,5,8,10-tetraazadodecanedioic acid, 4 - [(1-carboxyethyl) amino] -4-oxo-butanoic acid, 6 - [(3-carboxy-1-oxopropyl) amino acid ] -hexanoic acid, N, N '- (1,6-dioxo-1,6-hexanediyl) bis-glycine, N, N' - (1,3-dioxo-1,3-propanediyl) bis-glycine, 4,7,9,12-tetraoxapentadecanedioic acid, 4-pyranone-2,6-dicarboxylic acid, 2,5-pyrazinedicarboxylic acid, 1H-1-imidazole-4,5-dicarboxylic acid, 2,6-Pyrazinedicarboxylic acid, 2,5-Furanedicarboxylic acid, 3,4-Furanedicarboxylic acid, 2,3-Furan acid edicarboxylic acid, 2,5-diphenyl-3,4-furanedicarboxylic acid, 2-methyl-3,4-furanedicarboxylic acid, D-tartaric acid, DL-Tartaric acid, L-Tartaric acid , Galactaric acid, D-Glucaric acid; 2,5-Pyridinedicarboxylic acid, 2,5-pyrrolidinedicarboxylic acid, 1-phenyl-1H-pyrrole-3,4-dicarboxylic acid, 2,4-pyrrolidinedicarboxylic acid, 5- phenyl-2,4-pyrrolidinedicarboxylic acid, 3,5-piperidinedicarboxylic acid, 3,4-pyrrolidinedicarboxylic acid, 1-butyl-2,5-pyrrolidinedicarboxylic acid, 1 - (phenylmethyl) -3 acid, 4-

Pyrrolidinedicarboxylic acid, N- (2-carboxyethyl) -N-phenyl-β-alanine, N- (carboxymethyl) -N-octyl-glycine, N- (1-carboxyethyl) -L-alanine, L-acid glutamic acid, L-aspartic acid, N- (2-carboxyethyl) -Aspartic acid; and their mixtures.

2,2'-sulfinylbisacetic acid, 2,2'-[methylenebis (sulphonyl)] bis-acetic acid, N, N '- (1,3-dioxo-1,3) are particularly preferred. propanediyl) bisglycine, 2,5-Furanedicarboxylic acid, D-Tartaric acid, DL-Tartaric acid, L-Tartaric acid, Galactaric acid, L-glutamic acid, L-aspartic acid, and mixtures thereof.

It is also possible to use a lactone comprising at least one carboxylic group, in particular 1, 2 or 3 COOH groups. Preferably, the lactones comprise 5 to 14 carbon atoms, in particular 6 to 13 or even 6 to 12 carbon atoms.

The following lactones can be mentioned, alone or as a mixture:

- tetrahydro-2,2-dimethyl-5-oxo-3-furancarboxylic acid

- 4,7,7-trimethyl-3-oxo-2-oxabicyclo [2.2.1] heptane-1-carboxylic acid

- 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylic acid - 2-Oxo-2H-Pyran-5-carboxylic acid-2-Pentenedioic acid

- 2-oxo-2H-1-Benzopyran-3-carboxylic acid

2-oxo-2H-pyran-6-carboxylic acid

- 1, 3-Dihydro-3-oxo-1-lsobenzofurancarboxylic acid - 4-methyl-2-oxo-2H-1-Benzopyran-3-carboxylic acid

- 1-Oxo-1H-2-Benzopyran-3-carboxylic acid

- 8-methoxy-2-oxo-2H-1-Benzopyran-3-carboxylic acid

- 2-Oxo-1-Oxaspiro [4.5] decane-4-carboxylic acid

2-oxo-2H-pyran-3-carboxylic acid - 4-methyl-2-oxo-2H-pyran-6-carboxylic acid

- 3-oxo-3H-Naphtho [2,1-b] pyran-2-carboxylic acid

- tetrahydro-5-oxo-2,3-furandicarboxylic acid

- 1,3-Dihydro-3-oxo-4-lsobenzofurancarboxylic acid

- 1,3-Dihydro-1-oxo-5-lsobenzofurancarboxylic acid - hexahydro-2-oxo-3,5-methano-2H-cyclopenta [b] furan-7-carboxylic acid

- 6-methyl-2,4-dioxo-2H-pyran-5-carboxylic acid

- 1-oxo-3-lsochromancarboxylic acid

- 2-oxo-2H-1-Benzopyran-6-carboxylic acid

- 6-methyl-2-oxo-2H-1-benzopyran-3-carboxylic acid - 2,5-dihydro-4,5,5-trimethyl-2-oxo-3-furancarboxylic acid

- tetrahydroc-5-oxo-2-phenyl-3-furancarboxylic acid

- tetrahydro-5-oxo-4-propyl-2-furoic acid

- 2-Butyl-2,3-dideoxy-pentaric acid

- 2-oxo-2H-1-benzopyran-7-carboxylic acid - 2-oxo-1-Oxaspiro [4.4] nonane-4-carboxylic acid

- 4-ethyltetrahydro-5-oxo-2-furoic acid

5-ethyltetrahydro-2,3-dimethyl-6-oxo-2H-pyran-2-carboxylic acid

7-methoxy-2-oxo-2H-1-benzopyran-3-carboxylic acid

- 2-Oxo-2H-1-Benzopyran-4-carboxylic acid - 2-oxo-6-pentyl-2H-pyran-3-carboxylic acid

- 7-Oxo-4-Oxepanecarboxylic acid

3- (carboxymethyl) -2,3-dideoxy-pentaric acid

2,3-Dihydro-2-oxo-7-benzofurancarboxylic acid

- 1, 3,4,5-tetrahydro-1-oxo-2-benzoxepin-7-carboxylic acid - 3,4-dihydro-3-oxo-1H-2-benzopyran-6-carboxylic acid

2,3,4,5-tetrahydro-2-oxo-1-benzoxepin-7-carboxylic acid

3,4-Dihydro-1-oxo-1H-2-benzopyran-8-carboxylic acid

1, 3,4,5-tetrahydro-3-oxo-2-benzoxepin-9-carboxylic acid

- 1, 3,4,5-tetrahydro-3-oxo-2-benzoxepin-7-carboxylic acid - 3,4-dihydro-2-oxo-2H-1-benzopyran-8-carboxylic acid

1, 3,4,5-tetrahydro-1-oxo-2-benzoxepin-9-carboxylic acid

3,4-Dihydro-1-oxo-1H-2-benzopyran-6-carboxylic acid

3,4-Dihydro-3-oxo-1H-2-benzopyran-8-carboxylic acid 2,3,4,5-tetrahydro-2-oxo-1-benzoxepin-9-carboxylic acid

- The lactone of isocitric acid

5-oxo-2-tetrahydrofuranecarboxylic acid.

Preferably, tetrahydro-5-oxo-2,3-furandicarboxylic acid, 1,3-dihydro-3-oxo-4-lsobenzofurancarboxylic acid, 1,3-dihydro-1-oxo acid may be used. 5-Isobenzofurancarboxylic acid, tetrahydro-5-oxo-2-phenyl-3-furancarboxylic acid, lactone of isocitric acid, 5-oxo-2-tetrahydrofurancarboxylic acid and mixtures thereof.

These particular polycarboxylic acids, their anhydrides and / or lactones can be used alone, or in mixture with one another, or in admixture with one or more additional polycarboxylic acids. The particular polycarboxylic acids as defined above can therefore represent 0.5 to 100% by weight, especially 1 to 95% by weight, or even 2 to 70% by weight of the total amount of polycarboxylic acids. The additional polycarboxylic acids can therefore represent 0.1 to 99.5% by weight, especially 5 to 99% by weight, or even 30 to 98% by weight of the total amount of polycarboxylic acids.

The additional polycarboxylic acids may in particular be polycarboxylic acids, saturated or unsaturated, or even aromatic, linear, branched and / or cyclic, comprising at least 2 carboxylic groups COOH, especially 2 to 4 COOH groups; and / or a cyclic anhydride of such a polycarboxylic acid. It is of course possible to use a mixture of such polycarboxylic acids and / or anhydrides. Said additional polycarboxylic acid may in particular be chosen from linear, branched and / or cyclic, saturated or unsaturated or even aromatic polycarboxylic acids, comprising 2 to 50, especially 2 to 40, carbon atoms, in particular 3 to 36, or even 3 to 18, and more preferably 4 to 12 carbon atoms, or even 4 to 10 carbon atoms; said acid comprises at least two carboxylic groups COOH, preferably from 2 to 4 COOH groups. Preferably, said additional polycarboxylic acid is saturated, linear aliphatic and comprises 2 to 36 carbon atoms, especially 3 to 18 carbon atoms, or even 4 to 12 carbon atoms; or is aromatic and comprises 8 to 12 carbon atoms. It preferably comprises 2 to 4 COOH groups. Said cyclic anhydride of such an additional polycarboxylic acid may in particular correspond to one of the following formulas:

dans lesquelles les groupements A et B sont, indépendamment l'un de l'autre, :

in which the groups A and B are independently of each other:

a hydrogen atom,

a saturated or unsaturated, linear, branched and / or cyclic, or aromatic, carbon, aliphatic radical; comprising 1 to 16 carbon atoms, especially 2 to 10 carbon atoms, or even 4 to 8 carbon atoms, especially methyl or ethyl;

or A and B taken together form a ring comprising in total 5 to 7, in particular 6 carbon atoms, saturated or unsaturated, or even aromatic.

Preferably, A and B represent a hydrogen atom or together form an aromatic ring comprising a total of 6 carbon atoms.

Among the additional polycarboxylic acids or their anhydrides that may be used, mention may be made, alone or as a mixture:

dicarboxylic acids such as decanedioic acid, dodecanedioic acid, cyclopropanedicarboxylic acid, cyclohexanedicarboxylic acid, cyclobutanedicarboxylic acid, naphthalene-1,4-dicarboxylic acid and naphthalene-2 acid; , 3-dicarboxylic acid, naphthalene-2,6-dicarboxylic acid, suberic acid, oxalic acid, malonic acid, succinic acid, phthalic acid, terephthalic acid, isophthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, pimelic acid, sebacic acid, azelaic acid, glutamic acid, adipic acid, fumaric acid, acid maleic acid, itaconic acid, dimers of fatty acids (in particular C36) such as the products sold under the names Pripol 1006, 1009, 1013 and 1017, by Uniqema;

tricarboxylic acids such as cyclohexanetricarboxylic acid, trimellitic acid, 1,2,3-benzenetricarboxylic acid, 1,3,5-benzenetricarboxylic acid;

tetracarboxylic acids such as butanetetracarboxylic acid and pyromellitic acid,

cyclic anhydrides of these acids and especially phthalic anhydride, trimellitic anhydride, maleic anhydride and succinic anhydride. Preferably, it is possible to use adipic acid, phthalic anhydride and / or isophthalic acid, and even better isophthalic acid alone.

The total amount of polycarboxylic acids (particular and additional), their cyclic anhydrides and lactones is preferably 1 to 40, for example 5 to 40% by weight, especially 10 to 30% by weight, and more preferably 14 to 25% by weight, of the total weight of the final polycondensate.

The polycondensate according to the invention may further comprise a hydroxyl functional silicone (OH) and / or carboxylic acid (COOH). It can comprise 1 to 3 hydroxyl and / or carboxylic functions, and preferably comprises two hydroxyl functions or two carboxylic functions. These functions can be located at the end of the chain or in the chain, but advantageously at the end of the chain. Silicones having an average molecular weight are preferably employed by weight (Mw) of between 300 and 20000, in particular 400 and 10,000, or even 800 and 4000.

This silicone can be of formula:

dans laquelle :

in which :

- W and W are, independently of one another, OH or COOH; preferably W = W;

p and q are, independently of one another, equal to 0 or 1, R and R 'are, independently of one another, a divalent carbon radical, in particular hydrocarbon radical, saturated or unsaturated, or aromatic, linear, branched and / or cyclic; comprising 1 to 12 carbon atoms, especially 2 to 8 carbon atoms, and optionally further comprising 1 or more heteroatoms selected from O, S and N, especially O (ether); in particular R and / or R 'may be of formula - (CH ₂ ) _a - with a = 1-12, and especially methylene, ethylene, propylene, phenylene; or of formula - [(CH ₂ ) _X O] _z - with x = 1, 2 or 3 and z = 1-10; in particular x = 2 or 3 and z = 1-4; and better x = 3 and z = 1.

R1 to R6 are, independently of one another, a linear, branched and / or cyclic, saturated or unsaturated or even aromatic carbon radical; comprising 1 to 20 carbon atoms, especially 2 to 12 carbon atoms; preferably, R1 to R6 are saturated or aromatic, and may especially be chosen from alkyl radicals, in particular the methyl, ethyl, propyl, isopropyl, butyl, pentyl, hexyl, octyl, decyl, dodecyl and octadecyl radicals, cycloalkyl radicals, in particular the cyclohexyl radical, aryl radicals, especially phenyl and naphthyl radicals, arylalkyl radicals, in particular benzyl and phenylethyl radicals, as well as tolyl and xylyl radicals.

m and n are, independently of each other, integers between 1 and 140, and are such that the weight average molecular weight (Mw) of the silicone is between 300 and 20,000, in particular between 400 and and 10,000 or even between 800 and 4000.

Mention may in particular be made of α, ω-diol or α, ω-dicarboxylic polyalkylsiloxanes, and in particular α, ω-diol polydimethylsiloxanes and α, ω-dicarboxylic polydimethylsiloxanes; the α, ω-diol or α, ω-dicarboxylic polyarylsiloxanes, and in particular the α, ω-diol or α, ω-dicarboxylic polyphenylsiloxanes; silanol-functional polyarylsiloxanes such as polyphenylsiloxane; silanol-functional polyalkylsiloxanes such as polydimethylsiloxane; silanol functional polyaryl / alkylsiloxanes such as polyphenyl / methylsiloxane or polyphenyl / propylsiloxane. In particular, the α, ω-diol polydimethylsiloxanes of the average molecular weight (Mw) between 400 and 10,000, or between 500 and 5000, and especially between 800 and 4000.

When present, said silicone may preferably represent 0.1 to 15% by weight, especially 1 to 10% by weight, or even 2 to 8% by weight, of the weight of the poly-condensate.

In a preferred embodiment of the invention, the aromatic monocarboxylic acid is present in a molar amount less than or equal to that of the nonaromatic monocarboxylic acid; in particular the ratio between the number of moles of aromatic monocarboxylic acid and the number of moles of nonaromatic monocarboxylic acid is preferably between 0.08 and 0.70, in particular between 0.10 and 0.60, in particular between 0.12 and 0.40.

It has been found that this makes it possible in particular to obtain a polymer that is advantageously soluble in the oily media generally used to formulate cosmetic compositions such as lipsticks or foundations; Moreover, the film obtained has adequate rigidity and flexibility for its use in this type of formulation, while having a brilliance and brightness hold as desired.

Preferably, the polycondensate according to the invention has:

an acid number, expressed as mg of potassium hydroxide per g of polycondensate, greater than or equal to 1; in particular between 2 and 30, and even better between 2.5 and 15; and or

a hydroxyl number expressed in mg of potassium hydroxide per g of poly-condensate, greater than or equal to 40; in particular between 40 and 120, and even better between 45 and 80.

These acid and hydroxyl numbers can be easily determined by those skilled in the art by the usual analytical methods.

Preferably, the polycondensate according to the invention has a weight average molecular weight (Mw) of between 1500 and 300 000, even between 2000 and 200 000, and especially between 3000 and 100 000.

The average molecular weight can be determined by gel permeation chromatography or by light scattering, depending on the solubility of the polymer under consideration.

Preferably, the polycondensate according to the invention has a viscosity, measured at 110 ^° C., of between 20 and 4000 mPa.s, in particular between 30 and 3500 mPa.s, even between 40 and 3000 mPa.s and even better between 50 and 4000 mPa.s. and 2500 mPa.s. This viscosity is measured as described before the examples.

Moreover, the polycondensate is advantageously soluble in the oily cosmetic media usually employed, and in particular in vegetable oils, alkanes, fatty esters, fatty alcohols, silicone oils, and more particularly in media comprising isododecane, Parleam, isononyl isononanoate, octyldodecanol, phenyl trimethicone, alkyl benzoate C12-C15 and / or D5 (decamethylcyclopentasiloxane).

"Soluble" means that the polymer forms a clear solution in at least one solvent chosen from isododecane, Parleam, isononyl isononanoate, octyldodecanol and C12-C15 alkyl benzoate, at least 50% by weight at 70 ^° C. Some compounds even have a particularly advantageous solubility in certain fields of application, namely a solubility in at least one of the solvents mentioned above, from minus 50% by weight, at 25 ° C.

The polycondensate according to the invention can be prepared by the esterification / polycondensation processes usually employed by those skilled in the art. As an illustration, a general method of preparation consists of:

- mixing the polyol and the aromatic and nonaromatic monocarboxylic acids,

to heat the mixture under an inert atmosphere, first up to the melting temperature (generally 100-130 ^° C.) and then at a temperature between

150 and 220 ⁰ C until complete consumption of the monocarboxylic acids (reached when the acid number is less than or equal to 1), preferably by distilling as the water formed, and then

to optionally cool the mixture to a temperature of between 90 and 150 ° C.,

to add the polycarboxylic acid and / or the cyclic anhydride and / or the lactone, and optionally the hydroxyl or carboxylic functional silicone, in one go or in a sequenced manner, then

- To heat again at a temperature of less than or equal to 220 ⁰ C, in particular between 170 and 220 ⁰ C, preferably continuing to remove the water formed, until the characteristics required in terms of index are obtained. acid, viscosity, hydroxyl number and solubility.

It is possible to add conventional esterification catalysts, for example of the sulfonic acid type (especially at a concentration by weight of between 1 and 10%) or titanate type (in particular at a concentration by weight of between 5 and 100 ppm).

It is also possible to carry out the reaction, in whole or in part, in an inert solvent such as xylene and / or under reduced pressure, to facilitate the removal of water. Advantageously, no catalyst or solvent is used.

Said method of preparation may further comprise a step of adding at least one antioxidant agent to the reaction medium, in particular to a concentration of weight percentage between 0.01 and 1%, relative to the total weight of monomers, so as to limit any damage related to prolonged heating.

The antioxidant may be of primary or secondary type, and may be selected from hindered phenols, aromatic secondary amines, organophosphorus compounds, sulfur compounds, lactones, acrylated bisphenols; and their mixtures.

Among the particularly preferred antioxidants, there may be mentioned BHT, BHA, TBHQ, 1,3,5-trimethyl-2,4,6, tris (3,5-di-tertbutyl-4-hydroxybenzyl) benzene , octadecyl-3,5, di-tert-butyl-4-hydroxycinnamate, tetrakis-methylene-3- (3,5-di-tert-butyl-4-hydroxy-phenyl) propionate methane, octadecyl-3- (3) 4,5-di-tert-butyl-4-hydroxyphenyl) propionate 2,5-di-tert-butyl hydroquinone, 2,2-methyl-bis- (4-methyl-6-tert-butylphenol), 2,2-methylene-bis- (4-ethyl-6-tert-butyl phenol), 4,4-butylidene-bis (6-tertbutyl-m-cresol), N, N-hexamethylene bis (3,5-di-tert-butyl-4-hydroxyhydrocinnamamide), pentaerythritol tetrakis (3- (3,5-di-tertbutyl-4-hydroxyphenyl) propionate), especially that marketed by CIBA under the name IRGANOX 1010; octadecyl 3- (3,5-di-tert-butyl-4-hydroxphenyl) propionate, especially that marketed by CIBA under the name IRGANOX 1076; 1,3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) -1,3,5-triazine-2,4,6 (1H, 3H, 5H) trione, especially that marketed by Mayzo of Norcross, Ga under the name BNX 3114; di (stearyl) pentaerythritol diphosphite, tris (2,4-ditertbutylphenyl) phosphite, especially that marketed by CIBA under the name IRGAFOS 168; dilauryl thiodipropionate, in particular that marketed by CIBA under the name IRGANOX PS800; bis (2,4-di-tertbutyl) pentaerythritol diphosphite, especially that marketed by CIBA under the name IRGAFOS 126; bis (2,4-bis) [2-phenylpropan-2-yl] phenyl) pentaerythritol diphosphite, triphenylphosphite, (2,4-di-tertbutylphenyl) pentaerythritol diphosphite, especially that marketed by GE Specialty Chemicals under the name ULTRANOX 626 ; tris (nonylphenyl) phosphite, in particular that marketed by CIBA under the name IRGAFOS TNPP; the 1: 1 mixture of N, N-hexamethylenebis (3,5-di-tert-butyl-4-hydroxy-hydrocinnamamide) and tris (2,4-di-tert-butylphenyl) phosphate, in particular that marketed by CIBA under the name Irganox B 1171; tetrakis (2,4-di-tert-butylphenyl) phosphite, in particular that marketed by CIBA under the name IRGAFOS P-EPQ; distearylthiodipropionate, especially that marketed by CIBA under the name IRGANOX PS802; 2,4-bis (octylthiomethyl) o-cresol, especially that marketed by CIBA under the name IRGANOX 1520; 4,6-bis (dodecylthiomethyl) o-cresol including that marketed by CIBA under the name IRGANOX 1726.

The polycondensates according to the invention can be used very advantageously in a composition, in particular a cosmetic or pharmaceutical composition, which moreover comprises a physiologically, in particular cosmetically or pharmaceutically acceptable medium, that is to say a medium which is compatible with cutaneous tissues. like the skin of the face or body, and keratin materials such as hair, eyelashes, eyebrows and nails.

The amount of polycondensate present in the compositions depends, of course, on the type of composition and the desired properties and can vary within a very wide range, generally between 0.1 and 70% by weight, preferably between 1 and 50% by weight, especially between 10 and 45% by weight, or even between 20 and 40% by weight, and better still between 25 and 35% by weight, relative to the weight of the final cosmetic or pharmaceutical composition.

The composition may then comprise, according to the intended application, the usual constituents for this type of composition.

The composition according to the invention may advantageously comprise a liquid fatty phase, which may constitute a solvent medium for the polymers according to the invention, and which may comprise at least one compound chosen from oils and / or solvents of mineral, animal, vegetable or synthetic, carbonaceous, hydrocarbon-based, fluorinated and / or silicone, volatile or non-volatile, alone or in mixture in that they form a homogeneous and stable mixture and are compatible with the intended use.

For the purposes of the invention, the term "volatile" is intended to mean any compound capable of evaporating on contact with keratin materials, or the lips, in less than one hour at ambient temperature (25 ° C.) and atmospheric pressure ( 1 atm). In particular, this volatile compound has a non-zero vapor pressure, at ambient temperature and atmospheric pressure, in particular ranging from 0.13 Pa to 40 000 Pa (10 ^-3 to 300 mmHg), in particular ranging from 1.3 Pa. at 13 000 Pa (0.01 to 100 mmHg), and more particularly ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mmHg), whereas by 'non-volatile' a compound remaining on the keratin materials or the lips at room temperature and atmospheric pressure, at least one hour and having in particular a vapor pressure of less than 10 ^{~ 3} mm Hg (0.13 Pa).

Preferably, the physiologically acceptable medium of the composition according to the invention may comprise, in a liquid fatty phase, at least one oil and / or a solvent which may be chosen from, alone or as a mixture:

1 / esters of monocarboxylic acids with monoalcohols and polyalcohols; advantageously, said ester is a C12-C15 alkyl benzoate or has the following formula: R'rCOO-R'2 where:

R'1 represents a linear or branched alkyl radical of 1 to 40 carbon atoms, preferably 7 to 19 carbon atoms, optionally comprising one or more ethylenic double bonds, optionally substituted and whose hydrocarbon chain may be interrupted by one or more a plurality of heteroatoms selected from N and O and / or one or more carbonyl functions, and

R'2 represents a linear or branched alkyl radical of 1 to 40 carbon atoms, preferably from 3 to 30 carbon atoms and better still from 3 to 20 carbon atoms, optionally comprising one or more ethylenic double bonds, optionally substituted and the hydrocarbon chain may be interrupted by one or more heteroatoms chosen from N and O and / or or one or more carbonyl functions.

By "optionally substituted" is meant that R'i and / or R ' ₂ may carry one or more substituents selected, for example, from groups comprising one or more heteroatoms selected from O and / or N, such as amino, amino , alkoxy, hydroxyl. Examples of the R'i groups are those derived from preferably higher fatty acids selected from the group consisting of acetic, propionic, butyric, caproic, caprylic, pelargonic, capric, undecanoic, lauric, myristic, palmitic, stearic and isostearic acids. , arachidic, behenic, oleic, linolenic, linoleic, oleostearic, arachidonic, erucic, and mixtures thereof. Preferably, R'i is an unsubstituted branched alkyl group of 4 to 14 carbon atoms, preferably 8 to 10 carbon atoms and R ₂ is an unsubstituted branched alkyl group of 5 to 15 carbon atoms, preferably from 9 to 11 carbon atoms.

In particular, mention may be made, preferably, of C ₄ -C ₄ S esters, optionally incorporating in their hydrocarbon chain one or more heteroatoms from N and O and / or one or more carbonyl functions; and more particularly purcellin oil (cetostearyl octanoate), isononyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, octyl-2 stearate -dodecyl, octyl-2-dodecyl erucate, isostearyl isostearate, C ₂ -C 15 alcohol benzoate, hexyl laurate, diisopropyl adipate; and the heptanoates, octanoates, decanoates or ricinoleates of alcohols or polyalcohols, for example of fatty alcohols such as propylene glycol dioctanoate, as well as isopropyl N-lauroyl sarcosinate (in particular Eldew-205SL from Ajinomoto); hydroxylated esters such as isostearyl lactate, diisostearyl malate; and pentaerythritol esters; branched C8-C16 esters, especially isohexyl neopentanoate.

2 / hydrocarbon vegetable oils with a high triglyceride content consisting of esters of fatty acids and of glycerol, the fatty acids of which may have various chain lengths of C ₄ to C ₂₄ , the latter may be linear or branched, saturated or unsaturated; these oils include wheat germ, maize, sunflower, shea, castor oil, sweet almond, macadamia, apricot, soya, rapeseed, cotton, alfalfa, poppy, pumpkin, sesame, squash, avocado, hazelnut, grape seed or black currant, evening primrose, millet, barley, quinoa, olive, rye, safflower, of bancoulier, passionflower, muscat rose, jojoba, palm, calophyllum; or the triglycerides of caprylic / capric acids such as those sold by the company Stearinerie Dubois or those sold under the names "Miglyol 810 ^®", "812 ^®" and "818 ^®" by the company Dynamit Nobel.

3 / alcohols, and especially C6-C32 monoalcohols, in particular C12-C26, such as oleic alcohol, linoleic alcohol, linolenic alcohol, isostearyl alcohol, 2-hexyldecanol, 2 -butyloctanol, 2-undecylpentadecanol and octyldodecanol;

4 / linear or branched hydrocarbon oils, volatile or not, of synthetic or mineral origin, which may be chosen from hydrocarbon-based oils having from 5 to 100 carbon atoms, and especially petroleum jelly, polydecenes, polyisobutenes; hydrogenated such as Parleam, squalane, perhydrosquene and mixtures thereof.

It is more particularly possible to mention linear, branched and / or cyclic C5-C48 alkanes, and preferably branched C8-C16 alkanes such as C8-C16 isoalkanes of petroleum origin (also called isoparaffins); especially decane, heptane, dodecane, cyclohexane; as well as isododecane, isodecane, isohexadecane.

5 / silicone oils, volatile or non-volatile;

Volatile silicone oils that may be mentioned include volatile linear or cyclic silicone oils, in particular those having a viscosity of less than 8 centistokes, and especially having from 2 to 10 silicon atoms, these silicones possibly comprising alkyl or alkoxy groups. having from 1 to 22 carbon atoms; and in particular octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, demethyltetrasiloxane, dodecamethylpentasiloxane, methylhexyldimethylsiloxane and mixtures thereof. The nonvolatile silicone oils that may be used according to the invention may be polydimethylsiloxanes (PDMSs), polydimethylsiloxanes comprising alkyl or alkoxy groups, during and / or at the end of the silicone chain, groups each having from 2 to 24 carbon atoms. phenyl silicones such as phenyltrimethicones, phenyldimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyldimethicones, diphenylmethyldiphenyltrisiloxanes and 2-phenylethyl trimethylsiloxysilicates.

Preferably, the physiologically acceptable medium of the composition according to the invention comprises, in a liquid fatty phase, at least one oil and / or a solvent chosen from, alone or as a mixture, isododecane, Parleam, the isononanoate of isononyl, octyldodecanol, phenyl trimethicone, C12-C15 alkyl benzoates and / or D5 (decamethylcyclopentasiloxane). The liquid fatty phase may further comprise additional oils and / or solvents, which may be chosen from, alone or as a mixture:

fluorinated oils such as perfluoropolyethers, perfluoroalkanes such as perfluorodecalin, perfluorodamantanes, monoesters, diesters and triesters of perfluoroalkylphosphates and fluorinated ester oils;

- oils of animal origin;

- Ce-C40 ethers, especially C10-C40; propylene glycol ethers which are liquid at room temperature, such as propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate or dipropylene glycol mono-butyl ether;

- C8-C32 fatty acids, such as oleic acid, linoleic acid, linolenic acid and mixtures thereof.

- Bifunctional oils, comprising two functions selected from ester and / or amide and comprising from 6 to 30 carbon atoms, in particular 8 to 28 carbon atoms, more preferably 10 to 24 carbons, and 4 heteroatoms selected from O and N; preferably the amide and ester functions being in the chain;

ketones which are liquid at ambient temperature (25 ° C.), such as methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, isophorone, cyclohexanone and acetone; aldehydes which are liquid at room temperature, such as benzaldehyde or acetaldehyde;

The liquid fatty phase may represent 1 to 90% by weight of the composition, in particular from 5 to 75% by weight, in particular from 10 to 60% by weight, or even 25 to 55% by weight, of the total weight of the composition. .

The composition according to the invention may advantageously comprise a thickening agent which may in particular be chosen from:

silicas, in particular hydrophobic silicas, such as those described in document EP-A-898960, and for example sold under the references "AEROSIL"

R812 ^® "by Degussa," CAB-O-SIL TS-530 ^® "," CAB-O-SIL TS-610 ^® "," CAB-O-SIL TS-720 ^® "by the company Cabot," AEROSIL R972 ^® "," AEROSIL R974 ^® "by the company Degussa;

clays, such as montmorillonite, modified clays, such as benzones, stearalkonium hectorite, stearalkonium bentonite,

polysaccharide alkyl ethers (in particular in which the alkyl group contains from 1 to 24 carbon atoms, preferably from 1 to 10, better still from 1 to 6, and more particularly from 1 to 3, such as those described in EP-A); A-898958.

The amount of thickening agent in the composition according to the invention may range from 0.05 to 40% by weight, relative to the total weight of the composition, preferably from 0.5 to 20% and better still from 1 to 15%. in weight.

The composition according to the invention may also comprise at least one wax of plant, animal, mineral or synthetic origin, or even silicone. In particular, hydrocarbon waxes such as beeswax can be mentioned alone or as a mixture; Carnauba wax, Candellila wax, Ouricoury wax, Japan wax, cork fiber wax or sugar cane wax; paraffin waxes of lignite; microcrystalline waxes; lanolin wax; the wax of Montan; ozokerites; polyethylene waxes; waxes obtained by Fischer-Tropsch synthesis; hydrogenated oils, fatty esters and concrete glycerides at 25 ° C. It is also possible to use silicone waxes, among which mention may be made of alkyls, alkoxys and / or polymethylsiloxane esters. The amount of wax in the composition according to the invention may range from 0.1 to 70% by weight, relative to the total weight of the composition, preferably from 1 to 40% by weight, and better still from 5 to 30% by weight. weight.

The composition according to the invention may also comprise one or more dyestuffs chosen from pulverulent compounds such as pigments, fillers, pearlescent agents and flakes, and / or fat-soluble or water-soluble dyes.

The dyestuffs, in particular pulverulent, may be present in the composition in a content of from 0.01 to 50% by weight, relative to the weight of the composition, preferably from 0.1 to 40% by weight, or even from 1 to 30% by weight.

By pigments, it is necessary to include particles of any shape, white or colored, mineral or organic, insoluble in the physiological medium, intended to color the composition. By nacres, it is necessary to understand particles of any iridescent form, in particular produced by certain molluscs in their shell or else synthesized.

The pigments may be white or colored, inorganic and / or organic, interferential or not. Among the inorganic pigments, mention may be made of titanium dioxide, optionally surface-treated, zirconium or cerium oxides, as well as iron or chromium oxides, manganese violet, ultramarine blue, hydrogen chromium drate and ferric blue. Among the organic pigments, mention may be made of carbon black, D & C type pigments, and lacquers based on cochineal carmine, barium, strontium, calcium, aluminum.

The pearlescent pigments may be chosen from white pearlescent pigments such as mica coated with titanium, or bismuth oxychloride, colored pearlescent pigments such as titanium mica with iron oxides, titanium mica with in particular ferric blue or chromium oxide, titanium mica with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride. The fillers can be mineral or organic, lamellar or spherical. Mention may be made of talc, mica, silica, kaolin, powders of nylon and polyethylene, poly-β-alanine and polyethylene, Teflon, lauroyl-lysine, starch, boron nitride, tetrafluoroethylene polymer powders, hollow microspheres such as Expancel (Nobel Industry), polytrap (Dow Corning) and silicone resin microspheres (Toshiba Tospearls, for example), precipitated calcium carbonate, magnesium carbonate and hydro-carbonate, hydroxyapatite, hollow silica microspheres (MAPRECOS SILICA BEADS), microcapsules of glass or ceramic, metal soaps derived from organic carboxylic acids having 8 to 22 carbon atoms, preferably 12 to 18 carbon atoms, for example zinc stearate, magnesium or lithium, laurate zinc, magnesium myristate. Liposoluble dyes are for example Sudan Red, DC Red 17, DC Green 6, β-carotene, soybean oil, Sudan Brown, DC Yellow, 11, DC Violet 2, Orange DC 5 , yellow quinoline. They may represent 0.01 to 20% of the weight of the composition and better still 0.1 to 6%.

The water-soluble dyes are for example beet juice, methylene blue and may represent 0.01 to 6% of the total weight of the composition.

The composition may further include other ingredients commonly used in cosmetic compositions. Such ingredients may be chosen from antioxidants, perfumes, essential oils, preservatives, cosmetic active agents, moisturizers, vitamins, ceramides, sunscreens, surfactants, spreading agents, wetting agents, dispersing agents, antifoams, neutralizers, stabilizers, polymers and especially fat-soluble film-forming polymers, and mixtures thereof. Of course, those skilled in the art will take care to choose this or these optional additional compounds, and / or their quantity, in such a way that the advantageous properties of the composition for use according to the invention are not, or substantially not altered by the addition envisaged.

The compositions according to the invention may be in any form acceptable and customary for a cosmetic or pharmaceutical composition. They can therefore be in the form of a suspension, a dispersion including oil in water with vesicles; an organic or oily solution optionally thickened or even gelled; an oil-in-water, water-in-oil or multiple emulsion; a gel or a mousse; an oily or emulsified gel; a dispersion of vesicles, in particular lipids; a two-phase or multiphase lotion; a spray; a lotion, a cream, an ointment, a soft paste, an ointment, a solid cast or molded and especially stick or cup, or compacted solid.

Those skilled in the art may choose the appropriate dosage form, as well as its method of preparation, on the basis of its general knowledge, taking into account, on the one hand, the nature of the constituents used, in particular their solubility in the support, and on the other hand, of the application envisaged for the composition.

The compositions according to the invention having a gloss and a holding of said gloss improved compared to the state of the art, they can be used for the care or makeup of keratin materials such as hair, skin, eyelashes, eyebrows, nails, lips, scalp and more particularly for the makeup of the lips, eyelashes and / or face. They can therefore be in the form of a care product and / or makeup of the skin of the body or face, lips, eyelashes, eyebrows, hair, leather hair or nails; a suntan or self-tanning product; a hair product including coloring, conditioning and / or hair care; they are advantageously in the form of mascara, lipstick, lip gloss (gloss), blush or eyelid, foundation.

The invention further relates to a process for the cosmetic treatment of keratinous substances, in particular the skin of the body or of the face, the lips, the nails, the hair and / or the eyelashes, comprising the application on the said materials of a cosmetic composition as defined above. This method according to the invention allows in particular the care or makeup of the lips, by applying a composition of lipstick or lip gloss (gloss) according to the invention.

Claims

1. Cosmetic or pharmaceutical composition comprising, in a cosmetically or pharmaceutically acceptable medium, at least one polycondensate obtainable by reaction: from 10 to 30% by weight, relative to the total weight of the polycondensate, of at least one polyol comprising 3 to 6 hydroxyl groups; from 30 to 80% by weight, relative to the total weight of the polycondensate, of at least one linear, branched and / or cyclic, saturated or unsaturated non-aromatic monocarboxylic acid comprising 6 to 32 carbon atoms; from 0.1 to 10% by weight, relative to the total weight of the polycondensate, of at least one aromatic monocarboxylic acid comprising 7 to 11 carbon atoms, optionally further substituted with 1 to 3 alkyl radicals, saturated or unsaturated, linear, branched and / or cyclic, which contain 1 to 32 carbon atoms; from 1 to 40% by weight, relative to the total weight of the polycondensate, of at least one polycarboxylic acid, comprising at least 2 carboxylic groups COOH; and / or a cyclic anhydride of such a polycarboxylic acid; and / or a lactone comprising at least one COOH group; said polycarboxylic acid being selected from, alone or in admixture: (i) linear or branched chain saturated or unsaturated polycarboxylic acids comprising at least one heteroatom selected from O, N and / or S, in particular 1 to 10 identical or different heteroatoms, and / or comprising at least one perfluorinated radical; -CF ₂ - or -CF ₃ and also having at least 2 COOH carboxyl groups; and / or a cyclic anhydride of such a polycarboxylic acid (ii) heterocyclic polycarboxylic acids, saturated or unsaturated, or even aromatic, comprising at least one heteroatom selected from O, N and / or S, in particular 1 to 10 identical or different heteroatoms, and at least 2 carboxylic groups COOH; and / or a cyclic anhydride of such a polycarboxylic acid - (iii) polycarboxylic acids derived from sugar, obtainable in particular by oxidation of an aldose, and comprising at least 2 carboxylic groups COOH; and / or a cyclic anhydride of such a polycarboxylic acid - (iv) itaconic anhydride and 1,4,5,8-naphthalenetetracarboxylic acid 1,4-monoanhydride; (v) polycarboxylic amino acids (including heterocyclic acids), that is to say polycarboxylic acids with a saturated or unsaturated, linear, branched and / or cyclic chain, optionally comprising at least one heteroatom selected from O, N and or S, in particular 1 to 10 identical or different heteroatoms, and / or possibly comprising at least one perfluorinated radical -CF ₂ - or -CF ₃ ; and further comprising at least one primary, secondary or tertiary amine function (especially NR1 R2 with R1 and R2, independently of one another selected from H and C1-C12 alkyl), and further having at least 2 COOH carboxylic groups; and / or a cyclic anhydride of such a polycarboxylic acid. 2. Composition according to claim 1, in which the polyol is chosen from, alone or as a mixture: triols, such as 1,2,4-butanetriol, 1,2,6-hexanetriol, trimethylolethane, trimethylolpropane and glycerol; tetraols, such as pentaerythritol, erythritol, diglycerol or ditrimethylolpropane; pentols such as xylitol, hexols such as sorbitol and mannitol; or dipentaerythritol or triglycerol. 3. Composition according to one of the preceding claims, wherein the polyol, or the polyol mixture, represents 12 to 25% by weight, and more preferably 14 to 22% by weight, of the total weight of the polycondensate. 4. Composition according to one of the preceding claims, wherein the non-aromatic monocarboxylic acid is chosen from, alone or as a mixture: saturated monocarboxylic acids such as caproic acid, caprylic acid, isoheptanoic acid, 4-ethylpentanoic acid, 2-ethylhexanoic acid, 4,5-dimethylhexanoic acid, 2-heptylheptanoic acid, 3,5,5-trimethylhexanoic acid, octanoic acid, isooctanoic acid, nonanoic acid, decanoic acid, isononanoic acid, lauric acid, acid tridecanoic acid, myristic acid, palmitic acid, stearic acid, isostearic acid, arachidic acid, behenic acid, cerotic acid (hexacosanoic acid); cyclopentanecarboxylic acid, cyclopentaneacetic acid, 3-cyclopentylpropionic acid, cyclohexanecarboxylic acid, cyclohexylacetic acid, 4-cyclohexylbutyric acid; unsaturated but nonaromatic monocarboxylic acids, such as caproleic acid, obtusilic acid, undecylenic acid, dodecylenic acid, linderic acid, myristoleic acid, physétérique acid, tsuzuique acid , palmitoleic acid, oleic acid, petroselinic acid, vaccenic acid, elaidic acid, gondoic acid, gadoleic acid, erucic acid, cetoleic acid, nervonic acid , linoleic acid, linolenic acid, arachidonic acid. 5. Composition according to one of the preceding claims, wherein the nonaromatic monocarboxylic acid, or the mixture of said acids, represents 40 to 75% by weight, or even 45 to 70% by weight, and more preferably 50 to 65% by weight. , the total weight of the final polycondensate. 6. Composition according to one of the preceding claims, in which the aromatic monocarboxylic acid is chosen from, alone or as a mixture, benzoic acid, o-toluic acid, m-toluic acid, p-toluic acid, 1- naphthoic acid, 2-naphthoic acid, 4-tert-butyl-benzoic acid, 1-methyl-2-naphthoic acid, 2-isopropyl-1-naphthoic acid. 7. Composition according to one of the preceding claims, wherein the aromatic monocarboxylic acid, or the mixture of said acids, represents 0.5 to 9.95% by weight, more preferably 1 to 9.5% by weight, or even 1.5 to 8% by weight, of the total weight of the final polycondensate. 8. Composition according to one of the preceding claims, wherein the polycarboxylic acid, and / or its anhydride, and / or the lactone, is chosen, alone or as a mixture, from the following compounds: (I) 2,2 '- [1,5-pentanediylbis (thio)] bis-acetic acid 6,6 '- [(1,2-dioxo-1,2-ethanediyl) diimino] bis-hexanoic acid - 2,2'-sulfinylbis-acetic acid 4,13-dioxo-3,5,12,14-Tetraazahexadecanedioic acid Poly (ethylene glycol) disuccinate, in particular of 250-600 mass Poly (ethylene glycol) bis (carboxymethyl) ether, in particular of mass 250-600 Poly (oxy (1,2-dicarboxy-1,2-ethanediyl)], in particular DP <10 - 8 - [(carboxymethyl) amino] -8-oxooctanoic acid 2,2 '- [methylenebis (sulfonyl)] bis-acetic acid 4,4 '- (1,6-hexanediyldiimino) bis [4-oxo-butanoic acid] - 4,9-dioxo-3,5,8,10-tetraazadodecanedioic acid - 4 - [(1-carboxyethyl) amino] -4-oxo-butanoic acid - 6 - [(3-carboxy-1-oxopropyl) amino] hexanoic acid N, N '- (1,6-dioxo-1,6-hexanediyl) bis-glycine N, N '- (1,6-dioxo-1,6-hexanediyl) bis-phenylalanine N, N '- (1,3-dioxo-1,3-propanediyl) bis-glycine - 4,4 '- [(1,4-dioxo-1,4-butanediyl) diimino] bis-butanoic acid - 4,4' - [(1,6-dioxo-1,6-hexanediyl) acid ) diimino] bis-butanoic acid - 6,6 '- [1,6-hexanediylbis (iminocarbonylimino)] bis-hexanoic acid - N-benzoyl-S- (carboxymethyl) - Cysteine N, N '- (2,2,3,3-tetrafluoro-1,4-dioxo-1,4-butanediyl) bis-glycine N, N '- (2,2,3,3-tetrafluoro-1,4-dioxo-1,4-butanediyl) bis-alanine - 4,4' - [(2,2,3, 3-tetrafluoro-1,4-dioxo-1,4-butanoic N, N '- (1,5-dioxo-1,5-pentanediyl) bis-glycine N, N '- (1,9-dioxo-1,9-nonanediyl) bis-glycine N, N '- (1,10-dioxo-1, 10-decanediyl) bis [N-methylglycine] - Propanedioic acid bis (3-carboxypropyl) ester - 7,16-dioxo-6,8,15,17-Tetraazadocosanedioic acid - N-benzoyl-N- (2-carboxyethyl) -Glycine - [2 - [(2-carboxymethyl) amino] -2-oxoethyl] - benzenepropanoic acid - [2 - [(2-Carboxyethyl) amino] -2-oxoethyl] - benzenepropanoic acid (Ϋ) - 4,7,9,12-Tetraoxapentadecanedioic acid - 2,3-Pyridinedicarboxylic acid - 4-Pyranone-2,6-dicarboxylic acid - 2,5-Pyrazinedicarboxylic acid - 2,5-Pyridinedicarboxylic acid - 2,3-Benzofurandicarboxylic acid - 7-oxabicyclo [2.2.1] heptane-2,3-dicarboxylic acid - 3,4-Pyridinedicarboxylic acid - 2,4-Pyridinedicarboxylic acid - 3,5-Pyridinedicarboxylic acid - 2,6-Pyridinedicarboxylic acid - 1H-1midazole-4,5-dicarboxylic acid - 2,3-Quinolinedicarboxylic acid - 6,6,7,7-tetrafluoro-3-Oxabicyclo [3.2.0] heptane-2,4-dicarboxylic acid 2,6-Pyrazinedicarboxylic acid 2,6-Dimethyl-3,5-pyridinedicarboxylic acid - 1-phenyl-1H-Pyrazole-3,4-dicarboxylic acid - 2,5-Furanedicarboxylic acid - 3,4-Furanedicarboxylic acid - 1, 2,5-Thiadiazole-3,4-dicarboxylic acid - 1,4-Dihydro-1,2,4,5-tetrazine-3,6-dicarboxylic acid - 2,3-Furanedicarboxylic acid - 3,4-Thiophenedicarboxylic acid - 1H-1, 2,3-Triazole-4,5-dicarboxylic acid - 2-Methylimidazole-4,5-dicarboxylic acid - 2,4-Quinolinedicarboxylic acid - Naphtho [2,1-b] furan-1,2-dicarboxylic acid - 3,4-Quinolinedicarboxylic acid - 7-Oxabicyclo [2.2.1] hept-5-ene-2,3-dicarboxylic acid - 2,3-Quinoxalinedicarboxylic acid - 1,4-Piperazinedicarboxylic acid 2,5-dimethyl-3,4-furandicarboxylic acid - tetrahydro-2,5-thiophenedicarboxylic acid - 4-phenyl-3,5-pyridinedicarboxylic acid - Thieno [3,2-b] thiophene-2,5-dicarboxylic acid - 3-methyl-2,4-Thiophenedicarboxylic acid - Naphthostyril-5,6-dicarboxylic acid - 3-phenyl-2,4-quinolinedicarboxylic acid 3,4-Dimethyl-2,5-dicarboxythiophene 3,4-Diphenyl-2,5-thiophenedicarboxylic acid 2,5-diphenyl-3,4-furanedicarboxylic acid 7-Oxc-7H-benzimidazo [2,1-a] benz [de] isoquinoline-3,4-dicarboxylic acid - 2,3-Dihydro-1,3-dioxo-1H-Benz [de] isoquinoline-6,7-dicarboxylic acid 3,4-bis (phenylmethoxy) -2,5-furandicarboxylic acid - 4,4'-Bibenzoic acid-2,2'-sulfone - 2,7-Diphenyl-m-anthrazoline-4,5-dicarboxylic acid - 2,4-Pyrimidinedicarboxylic acid - 2-Phenyl-4,5-thiazoledicarboxylic acid - 6-phenyl-2,3-pyridinedicarboxylic acid - 5,6-Dimethyl-2,3-pyrazinedicarboxylic acid - 3,7-Dibenzothiophenedicarboxylic acid 9-oxo-9H-Xanthene-1,7-dicarboxylic acid 2- (1,1-dimethylethyl) -H-imidazole-4,5-dicarboxylic acid - 6,7-Quinolinedicarboxylic acid - 6-Methyl-2,3-pyridinedicarboxylic acid - 4,5-Pyrimidinedicarboxylic acid - 2-methyl-3,4-furanedicarboxylic acid - 1, 2-Indolizinedicarboxylic acid - 2,8-Dibenzothiophenedicarboxylic acid - 3,6-Pyridazinedicarboxylic acid - 1,10-Phenanthroline-2,9-dicarboxylic acid - 1, 4,5,6-tetrahydro-5,6-dioxo-2,3-pyrazinedicarboxylic acid 3,4-Dimethoxy-2,5-furandicarboxylic acid - 2-Ethyl-4,5-imidazoledicarboxylic acid - 2-Propyl-1H-imidazole-4,5-dicarboxylic acid - 4-phenyl-2,5-pyridinedicarboxylic acid - 4,5-Pyridazinedicarboxylic acid - 1, 4,5,8-Tetrahydro-1,4,5,8-Diepoxynaphthalene-4a, 8a-dicarboxylic acid - 5,5-dioxide-2,8-Dibenzothiophenedicarboxylic acid - Pyrazolo [1,5-a] pyridine-2,3-dicarboxylic acid - 2,3-Dihydro-1H-Pyrrolizine-1,7-dicarboxylic acid - 6-methyl-2,4,5-pyridinetricarboxylic acid - Pyrrolo [2,1,5-cd] indolizine-5,6-dicarboxylic acid 3,4-Bis (2,2,3,3,4,4,4-heptafluorobutyl) -1H-pyrrole-2,5-dicarboxylic acid -The acid 6,7,9,10,17 , 18,20,21-octahydrodibenzo [b, k] [1,4,7,10,13,16] hexaoxacyclo-octadecine-2,14-dicarboxylic acid 6,7,9,10,17,18,20,21-octahydro-dibenzo [b, k] [1, 4, 7, 10, 13, 16] hexaoxacyclo octadecin-2, 13-dicarboxylic acid - 2-methyl-3,4-Quinolinedicarboxylic acid - 4,7-Quinolinedicarboxylic acid - 3,5-lsoxazoledicarboxylic acid 2- (trifluoromethyl) 3,4-furanedicarboxylic acid 5- (trifluoromethyl) -2,4-furanedicarboxylic acid - 6-methyl-2,4-quinolinedicarboxylic acid - 5-oxo-1,2-pyrrolidinedicarboxylic acid - 5-Ethyl-2,3-pyridinedicarboxylic acid - 1, 2-Dihydro-2-oxo-3,4-quinolinedicarboxylic acid - 4,6-Phenoxathiindicarboxylic acid - 10,10-dioxide 9,9-phenoxathiindicarboxylic acid 3,4-Dihydro-2H-1,4-thiazine-3,5-dicarboxylic acid 2,7-Di (tert-butyl) -9,9-dimethyl-4,5-xanthenedicarboxylic acid - 6-methyl-2,3-quinoxalinedicarboxylic acid - 3,7-Quinolinedicarboxylic acid - 2,5-Quinolinedicarboxylic acid - 2-Methyl-6-phenyl-3,4-pyridinedicarboxylic acid 3,4-dimethylthieno [2,3-b] thiophene-2,5-dicarboxylic acid 3,4-Dimethoxythiophene-2,5-dicarboxylic acid - 5-methyl-3,4-lsoxazoledicarboxylic acid - 2,6-bis (aminocarbonyl) -3,5-pyridinedicarboxylic acid - 3,5-bis (aminocarbonyl) -2,6-pyrazinedicarboxylic acid - 2,3-Pyridinedicarboxylic acid 6- (1,1-Dimethylethyl) -2-ethyl-3,4-pyridinedicarboxylic acid - 3-methyl-5-phenyl-2,4-thiophenedicarboxylic acid - 1, 2-dihydro-2-oxo-6-phenyl-3,5-pyridinedicarboxylic acid - 8-methyl-2,4-quinolinedicarboxylic acid - 4-ethyl-2,6-dimethyl-3,5-pyridinedicarboxylic acid - 5- (phenoxymethyl) -2,4-Furanedicarboxylic acid 5- (acetylamino) -3-methyl-2,4-thiophenedicarboxylic acid - 2- (4-heptylphenyl) -4,8-quinolinedicarboxylic acid - 2,8-bis (4-heptylphenyl) -pyrido [3,2-g] quinoline-4,6-dicarboxylic acid 1, 2,3,4,6,7,8,9-octahydro-2,8-dioxo-pyrido [3,2] quinoline-3,7-dicarboxylic acid - 2,8-Dimethyl-Pyrido [3,2-g] quinoline-3,7-dicarboxylic acid - 5,6-Quinolinedicarboxylic acid - 6-ethyl-2-methyl-cinchomeronic acid - 2-methyl-6-propyl-cinchomeronic acid - 6-isopropyl-2-methyl-cinchomeronic acid - 6-tert-butyl-2-methyl-cinchomonic acid - 1,4-dimethyl-7-oxabicyclo [2.2.1] heptane-2,3-dicarboxylic acid - 1,2-Dihydro-2-oxo-3,8-quinoline dicarboxylic acid - 1, 2-Dihydro-2-oxo-3,6-quinoline dicarboxylic acid - 1, 2-Dihydro-2-oxo-3,7-quinoline dicarboxylic acid - 3,7-Dimethyl-2,8-diphenyl-pyrido [3,2-g] quinoline-4,6-dicarboxylic acid - 8-methyl-2,3-Quinolinedicarboxylic acid 3 - [[(1,1-Dimethylethyl) amino] sulfonyl] -2,5-thiophene dicarboxylic acid 4- (Acetylamino) -2,3-thiophenedicarboxylic acid - 2,5-Pyridinedicarboxylic acid - 2,6-Pyridinedicarboxylic acid - 2,4-Thiophenedicarboxylic acid - 2,5-Thiophenedicarboxylic acid - 1,4-pyran-2,6-dicarboxylic acid (Iii) - Ribarique acid - Glucaric acid - Xylaric acid - Arabinaric acid - Mannaric acid - Idaric acid - Altraric acid - L-Glucaric acid - L-Arabinaric acid - Allaric acid - Galactaric acid - meso-Tartaric acid - D-Glucaric acid - L-ldaric acid - Hexaric acid - 2,3-Dihydroxybutanedioic acid - D-Tartaric Acid - DL-Tartaric Acid - D-Glucaric Acid - tartaric acid - Tetrahydroxysuccinic acid 2-carboxy-2,3-dideoxy D-manno-2-octulopyranosonic acid - Methyl 3-deoxy-D-arabino-2-heptulopyranosaric acid - D-lyxo-2-heptulopyranosaric acid 2,6-Anhydro-L-glycero-L-galacto-heptaric acid (Iv) 1, 4,5,8-Naphthalenetetracarboxylic acid 1,4-monoanhydride - itaconic anhydride (V) 1,4-dihydro-4-oxo-2,6-pyridinedicarboxylic acid 2,6-Piperidinedicarboxylic acid - 1 H-Pyrrole-3,4-dicarboxylic acid - 4-amino-2,6-dicarboxylic acid 1-methyl-1H-Pyrazole-3,4-dicarboxylic acid 2,3-Piperidinedicarboxylic acid 1-methyl-1H-1-imidazole-4,5-dicarboxylic acid 2,4-Thiazolidinedicarboxylic acid 1- (phenylmethyl) -1H-1-imidazole-4,5-dicarboxylic acid 5-amino-6-oxo-2,3-piperidinedicarboxylic acid - 5-amino-6-oxo-2,4-piperidinedicarboxylic acid 5-amino-6-oxo-2,3-piperidinedicarboxylic acid 5-amino-6-oxc-, [2S- (2α, 4β, 5α)] -2,4-piperidinedicarboxylic acid - (2S, 4R) -2,4-Pyrrolidinedicarboxylic acid - (2S-cis) -2,4-Pyrrolidinedicarboxylic acid - 2-amino-1H-1-imidazole-4,5-dicarboxylic acid - 2,5-Pyrrolidinedicarboxylic acid 4-amino-3,5-lsothiazoledicarboxylic acid 1-methyl-1H-Pyrazole-3,5-dicarboxylic acid 7- (diethylamino) -2-oxo-2H-1-benzopyran-3,4-dicarboxylic acid - 3,4-diethyl-1H-pyrrole-2,5-dicarboxylic acid 1-phenyl-1H-pyrrole-3,4-dicarboxylic acid cis-2,3-Piperazinedicarboxylic acid 2,3-Piperazinedicarboxylic acid - 2,5-Piperazinedicarboxylic acid - 2,6-Piperazinedicarboxylic acid 2-amino-3,5-pyridinedicarboxylic acid 2-methyl-pyrrole-3,4-dicarboxylic acid 4- (methylamino) -2,6-pyridinedicarboxylic acid 2-amino-6-methyl-3,4-pyridinedicarboxylic acid - 5-amino-2-methyl-3,4-pyridinedicarboxylic acid 2-amino-6-methyl-3,5-pyridinedicarboxylic acid 2,5-dimethyl-pyrrole-3,4-dicarboxylic acid 2,5-dimethyl-pyrrole-3,4-dicarboxylic acid - 2-amino-6-hydroxy-3,5-pyridinedicarboxylic acid - 2,4-pyrrolidinedicarboxylic acid 1H -indole-2,4-dicarboxylic acid 1 H-indole-2,6-dicarboxylic acid 1H-lndole-2,5-dicarboxylic acid - 5-phenyl-2,4-pyrrolidinedicarboxylic acid - 5-methyl-2,4-pyrrolidinedicarboxylic acid trans-2,4-azetidinedicarboxylic acid cis-2,4-azetidinedicarboxylic acid - 3,5-Piperidinedicarboxylic acid 2,3-Pyrrolidinedicarboxylic acid - 2,3-Azetidinedicarboxylic acid 3,4-Pyrrolidinedicarboxylic acid 2,3-Dihydro-6H-1,4-dioxino [2,3-c] pyrrole-5,7-dicarboxylic acid 1-H-imidazole-2,4-dicarboxylic acid 1-butyl-1H-pyrrole-2,3-dicarboxylic acid - 3-amino-1-oxide-2,4-pyridinedicarboxylic acid 2,3-dihydro-5-phenyl-1H-pyrrolizine-6,7-dicarboxylic acid 3a, 4,5,9b-tetrahydro-3H-cyclopenta [c] quinoline-4,6-dicarboxylic acid; 3a, 4,5,9b-tetrahydro-3H-cyclopenta [c] quinoline-4 acid; , 8-dicarboxylic 2,3-Dihydro-1H-1-imidazole-4,5-dicarboxylic acid - 5-amino-6-methyl-Lutidinic acid 1H-lndole-3,7-dicarboxylic acid 3,3-dimethyl-2,6-piperidinedicarboxylic acid - 1-butyl-2,5-pyrrolidinedicarboxylic acid 1H-lndole-4,6-dicarboxylic acid 1- (phenylmethyl) -3,4-pyrrolidinedicarboxylic acid 3- (carboxymethyl) -1H-indole-2,6-dicarboxylic acid 3,4-bis (2,2,2-trifluoroethyl) -1H-pyrrole-2,5-dicarboxylic acid; 9-hexyl-9H-carbazole-3,6-dicarboxylic acid; 3-methyl-5- (1-piperazinylsulfonyl) -2,4-thiophenedicarboxylic acid 2,3,4,9-tetrahydro-1H-carbazole-5,7-dicarboxylic acid 2,3-dimethyl-1H-indole-4,6-dicarboxylic acid 7-amino-1,4-dihydro-4-oxo-3,6-quinolinedicarboxylic acid - 5-amino-3-methyl-2,4-thiophenedicarboxylic acid - (m-tolylimino) di-Acetic acid - (o-tolylimino) di-Acetic acid - D-Cystathionine - Phenethyliminodiacetic acid - 2-Benzyl-2,2'-iminodiacetic acid L-α-glutamyl-L-alanyl-L-Alanine N, N'-Dibenzylethylenediaminediacetic acid N-L-gamma-glutamyl-D-Alanine glycyl-L-glutamyl glycine - N- (carboxymethyl) -N- (tetrahydro-1,1-dioxido-3-thienyl) -Glycine N- (2-carboxyethyl) -N-phenyl-beta-Alanine N- (carboxymethyl) -N-octyl-glycine N- (tert-Butoxycarbonyl) iminodiacetic acid N- (carboxymethyl) -L-Alanine - N- (6-aminohexyl) -N- (carboxymethyl) -Glycine N- (carboxymethyl) -N-tetradecyl-glycine N- (1-carboxyethyl) -D-Alanine N- (carboxymethyl) -D-Alanine - decyliminodiacetic acid - 3,3 '- (dimethylhydrazono) bis-propanoic acid N- (carboxymethyl) -N- [2- (2,6-dioxo-4-morpholinyl) ethyl] -glycine - N-alpha-aspartyl-glycine - N-beta-aspartyl-glycine NL-alpha-aspartyl-beta-Alanine 3,4-Xylylamino-N, N-diacetic acid N- (1-carboxyethyl) -Alanine N- (carboxymethyl) -Alanine - N, N'-methylenebis-glycine N- (aminomethyl) -N- (carboxymethyl) -glycine N- (aminomethyl) -N- (carboxymethyl) -glycine - 2,2 '- (methylhydrazono) bis-acetic acid N- (2-carboxyethyl) -N- (4-methylphenyl) -beta-alanine - N- (2-carboxyethyl) -N- (3-methylphenyl) -beta-alanine 3 - [(carboxymethyl) amino] -Alanine - D-alpha-aspartyl-D-Alanine N- (2-carboxyethyl) -N- (1-oxohexadecyl) -beta-alanine N- (2-carboxyethyl) -N- (1-oxodecyl) -beta-alanine - N- (2-carboxyethyl) -N- (1-oxotetradecyl) -beta-alanine amino acid [(carboxymethyl) thio] - acetic acid N, N'-1,6-hexanediylbis-beta-Alanine N- (carboxymethyl) -N-phenyl-beta-Alanine N- (i-carboxyethyl) -L-Alanine - L-glutamic acid - L-aspartic acid. (Vi) 3,3 ', 3 "- [1,2,3-propanetriyltris (oxy)] trispropanoic acid - Pyrazinetricarboxylic acid 4- (3-carboxyphenyl) -2,5-pyridinedicarboxylic acid - 3- (carboxymethyl) -2,4-quinolinedicarboxylic acid 3- (carboxymethyl) -1H-indole-2,5-dicarboxylic acid - 3-C-carboxy-2-deoxy-D-threo-pentaric acid - Hydroxycitric acid D-glucopyranuronosyl-D-arabino-2-hexulofuranosidaric acid - 2,3,5,6-Pyridinetetracarboxylic acid N, N'-1, 2-ethanediylbis [N- (carboxymethyl) -β-alanine L-α-aspartyl-L-Aspartic acid - 4- [bis (carboxymethyl) amino] benzoic acid 7- [bis (carboxymethyl) amino] -Heptanoic acid - N- (2-carboxyethyl) -Aspartic acid 3- [bis (2-carboxyethyl) amino] benzoic acid 4- [bis (2-carboxyethyl) amino] benzoic acid. (Saw) - tetrahydro-2,2-dimethyl-5-oxo-3-furancarboxylic acid - 4,7,7-trimethyl-3-oxo-2-oxabicyclo [2.2.1] heptane-1-carboxylic acid - 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylic acid - 2-Oxo-2H-Pyran-5-carboxylic acid-2-Pentenedioic acid - 2-oxo-2H-1-Benzopyran-3-carboxylic acid 2-oxo-2H-pyran-6-carboxylic acid - 1, 3-dihydro-3-oxo-1-lsobenzofurancarboxylic acid - 4-methyl-2-oxo-2H-1-Benzopyran-3-carboxylic acid - 1-Oxo-1H-2-Benzopyran-3-carboxylic acid - 8-methoxy-2-oxo-2H-1-Benzopyran-3-carboxylic acid - 2-Oxo-1-oxaspiro [4.5] decane-4-carboxylic acid - 2-oxo-2H-pyran-3-carboxylic acid - 4-methyl-2-oxo-2H-pyran-6-carboxylic acid - 3-oxo-3H-Naphtho [2,1-b] pyran-2-carboxylic acid - tetrahydro-5-oxo-2,3-furandicarboxylic acid - 1,3-Dihydro-3-oxo-4-lsobenzofurancarboxylic acid - 1,3-dihydro-1-oxo-5-lsobenzofurancarboxylic acid - Hexahydro-2-oxo-3,5-methano-2H-cyclopenta [b] furan-7-carboxylic acid - 6-methyl-2,4-dioxo-2H-pyran-5-carboxylic acid - 1-oxo-3-lsochromancarboxylic acid - 2-oxo-2H-1-Benzopyran-6-carboxylic acid - 6-methyl-2-oxo-2H-1-Benzopyran-3-carboxylic acid - 2,5-Dihydro-4,5,5-trimethyl-2-oxo-3-furancarboxylic acid - tetrahydro-5-oxo-2-phenyl-3-furancarboxylic acid - tetrahydro-5-oxo-4-propyl-2-furoic acid - 2-Butyl-2,3-dideoxy-pentaric acid - 2-oxo-2H-1-Benzopyran-7-carboxylic acid - 2-oxo-1-oxaspiro [4.4] nonane-4-carboxylic acid - 4-ethyltetrahydro-5-oxo-2-furoic acid 5-ethyltetrahydro-2,3-dimethyl-6-oxo-2H-pyran-2-carboxylic acid - 7-methoxy-2-oxo-2H-1-benzopyran-3-carboxylic acid - 2-oxo-2H-1-Benzopyran-4-carboxylic acid - 2-oxo-6-pentyl-2H-pyran-3-carboxylic acid - 7-Oxo-4-Oxepanecarboxylic acid 3- (carboxymethyl) -2,3-dideoxy-pentaric acid 2,3-Dihydro-2-oxo-7-benzofurancarboxylic acid - 1, 3,4,5-tetrahydro-1-oxo-2-benzoxepin-7-carboxylic acid 3,4-Dihydro-3-oxo-1H-2-benzopyran-6-carboxylic acid 2,3,4,5-tetrahydro-2-oxo-1-benzoxepin-7-carboxylic acid 3,4-Dihydro-1-oxo-1H-2-benzopyran-8-carboxylic acid - 1, 3,4,5-tetrahydro-3-oxo-2-benzoxepin-9-carboxylic acid - 1, 3,4,5-tetrahydro-3-oxo-2-benzoxepin-7-carboxylic acid 3,4-Dihydro-2-oxo-2H-1-benzopyran-8-carboxylic acid 1, 3,4,5-tetrahydro-1-oxo-2-benzoxepin-9-carboxylic acid 3,4-Dihydro-1-oxo-1H-2-benzopyran-6-carboxylic acid 3,4-Dihydro-3-oxo-1H-2-benzopyran-8-carboxylic acid 2,3,4,5-tetrahydro-2-oxo-1-benzoxepin-9-carboxylic acid - The lactone of isocitric acid 5-oxo-2-tetrahydrofuranecarboxylic acid. 9. Composition according to one of the preceding claims, in which the polycondensate additionally comprises at least one additional polycarboxylic acid, or its anhydride, chosen, alone or as a mixture, from linear, branched and / or cyclic polycarboxylic acids. saturated or unsaturated, or even aromatic, having 2 to 50 carbon atoms; said acid comprising at least two carboxylic groups COOH. A composition according to claim 9 wherein said additional polycarboxylic acid, or its anhydride is selected from, alone or in admixture: - dicarboxylic acids such as decanedioic acid, dodecanedioic acid, cyclopropanedicarboxylic acid, cyclohexanedicarboxylic acid, cyclobutanedicarboxylic acid, naphthalene-1,4-dicarboxylic acid, naphthalene-2,3-dicarboxylic acid, naphthalene-2,6-dicarboxylic acid, suberic acid, and the like. oxalic acid, malonic acid, succinic acid, phthalic acid, terephthalic acid, isophthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, pimelic acid, sebacic acid , azelaic acid, glutamic acid, adipic acid, fumaric acid, maleic acid, itaconic acid, fatty acid dimers (especially C36); tricarboxylic acids such as cyclohexanetricarboxylic acid, trimellitic acid, 1,2,3-benzenetricarboxylic acid, 1,3,5-benzenetricarboxylic acid; tetracarboxylic acids such as butanetetracarboxylic acid and pyromellitic acid, the cyclic anhydrides of these acids and especially phthalic anhydride, trimellitic anhydride, maleic anhydride and succinic anhydride. 11. Composition according to one of Claims 15 to 16, in which the additional polycarboxylic acid or its anhydride is chosen from adipic acid, phthalic anhydride and / or isophthalic acid, and better isophthalic acid alone. . 12. Composition according to one of the preceding claims, wherein the set of polycarboxylic acids, their cyclic anhydrides and / or lactones represents 10 to 30% by weight, and more preferably 14 to 25% by weight, weight total polycondensate. 13. Composition according to one of the preceding claims, wherein the polycondensate further comprises at least one silicone hydroxyl function (OH) and / or carboxylic (COOH). The composition of claim 13, wherein the silicone is of formula: R1 R3 R5 _R2 R4 R6 in which: - W and W are, independently of one another, OH or COOH; p and q are, independently of one another, equal to 0 or 1, - R and R 'are, independently of one another, a divalent carbon radical, in particular hydrocarbon, saturated or unsaturated, or even aromatic, linear, branched and / or cyclic; comprising 1 to 12 carbon atoms, and optionally further comprising 1 or more heteroatoms selected from O, S and N; or of formula - [(CH ₂ ) _X O] _Z - with x = 1, 2 or 3 and z = 1-10; - R1 to R6 are, independently of one another, a linear carbon radical, branched and / or cyclic, saturated or unsaturated or aromatic; comprising 1 to 20 carbon atoms; m and n are, independently of each other, integers between 1 and 140, and are such that the weight average molecular weight (Mw) of the silicone is between 300 and 20,000. 15. Composition according to one of claims 13 to 14, wherein the silicone represents 0.1 to 15% by weight, especially 1 to 10% by weight, or even 2 to 8% by weight, of the total weight of the polycondensate. 16. Composition according to one of the preceding claims, in which the polycondensate has at least one of the following characteristics: an acid number, expressed as mg of potassium hydroxide per g of polycondensate, greater than or equal to 1; in particular between 2 and 30, and even better between 2.5 and 15; and or a hydroxyl number expressed in mg of potassium hydroxide per g of poly-condensate, greater than or equal to 40; in particular between 40 and 120, and even better between 45 and 80; and or a weight-average molecular weight (Mw) of between 1500 and 300 000, even between 2000 and 200 000, and especially between 3000 and 100 000; and or a viscosity, measured at 110 ^° C., of between 20 and 4000 mPa.s, in particular between 30 and 3500 mPa.s, even between 40 and 3000 mPa.s and even better between 50 and 2500 mPa.s; and or a solubility in at least one solvent chosen from isododecane, Parleam, isononyl isononanoate, octyldodecanol and C12-C15 alkyl benzoate, at least 50% by weight, at 70 ^° C. 17. Composition according to one of the preceding claims, in which the polycondensate is present in an amount of between 0.1 and 70% by weight, preferably between 1 and 50% by weight, in particular between 10 and 45% by weight. weight, or even between 20 and 40% by weight, and better still between 25 and 35% by weight, relative to the weight of the final cosmetic or pharmaceutical composition. 18. Composition according to one of the preceding claims, wherein the cosmetically or pharmaceutically acceptable medium comprises at least one liquid fatty phase, which may comprise at least one compound selected from oils and / or solvents of mineral, animal, vegetable origin. or synthetic, carbonaceous, hydrocarbon, fluorinated and / or silicone, volatile or non-volatile, alone or in mixture. 19. Composition according to one of the preceding claims, in which the cosmetically or pharmaceutically acceptable medium comprises at least one oil and / or a solvent chosen from, alone or as a mixture, isododecane, Parma, isononyl isononanoate, octyldodecanol, phenyl trimethicone, C12-C15 alkyl benzoates and / or D5 (decamethylcyclopentasiloxane). 20. Composition according to one of the preceding claims, being in the form of a care product and / or makeup of the skin of the body or face, lips, eyelashes, eyebrows, hair, leather hair or nails; a suntan or self-tanning product; a hair product including coloring, conditioning and / or hair care. 21. Composition according to one of the preceding claims, in the form of mascara, lipstick, lip gloss (gloss), blush or eyelid, foundation. 22. Process for the cosmetic treatment of keratinous substances, in particular the skin of the body or face, lips, nails, hair and / or eyelashes, comprising the application to said materials of a cosmetic composition as defined in one of claims 1 to 21. 23. Polycondensate obtainable by reaction: from 10 to 30% by weight, relative to the total weight of the polycondensate, of at least one polyol comprising 3 to 6 hydroxyl groups; from 30 to 80% by weight, relative to the total weight of the polycondensate, of at least one linear, branched and / or cyclic, saturated or unsaturated non-aromatic monocarboxylic acid comprising 6 to 32 carbon atoms; from 0.1 to 10% by weight, relative to the total weight of the polycondensate, of at least one aromatic monocarboxylic acid comprising 7 to 11 carbon atoms, optionally further substituted with 1 to 3 alkyl radicals, saturated or unsaturated, linear, branched and / or cyclic, which contain 1 to 32 carbon atoms; from 1 to 40% by weight, relative to the total weight of the polycondensate, of at least one polycarboxylic acid, comprising at least 2 carboxylic groups COOH; and / or a cyclic anhydride of such a polycarboxylic acid; and / or a lactone comprising at least one COOH group; said polycarboxylic acid being selected from, alone or in admixture: (i) linear or branched chain saturated or unsaturated polycarboxylic acids comprising at least one heteroatom selected from O, N and / or S, in particular 1 to 10 identical or different heteroatoms, and / or comprising at least one radical; perfluorinated calorie -CF ₂ - or -CF ₃ and also having at least 2 carboxylic groups COOH; and / or a cyclic anhydride of such a polycarboxylic acid - (ii) saturated or unsaturated or even aromatic heterocyclic polycarboxylic acids comprising at least one heteroatom selected from O, N and / or S, especially 1 to 10 identical heteroatoms or different, and at least 2 carboxyl groups COOH; and / or a cyclic anhydride of such a polycarboxylic acid (iii) polycarboxylic acids derived from sugar, obtainable in particular by oxidation of an aldose, and comprising at least 2 carboxylic groups COOH; and / or a cyclic anhydride of such a polycarboxylic acid - (iv) itaconic anhydride and 1,4,5,8-naphthalenetetracarboxylic acid 1,4-monoanhydride; (v) polycarboxylic amino acids (including heterocyclic acids), that is to say polycarboxylic acids with a saturated or unsaturated, linear, branched and / or cyclic chain, optionally comprising at least one heteroatom selected from O, N and or S, in particular 1 to 10 identical or different heteroatoms, and / or optionally comprising at least one perfluorinated radical -CF ₂ - or -CF ₃ ; and further comprising at least one primary, secondary or tertiary amine function (especially NR1 R2 with R1 and R2, independently of one another selected from H and C1-C12 alkyl), and further having at least 2 groups carboxylic COOH; and / or a cyclic anhydride of such a polycarboxylic acid.