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EP2367925B1 - Aufschlämmung mit perlglanzmittel für flüssige behandlungszusammensetzung - Google Patents

Aufschlämmung mit perlglanzmittel für flüssige behandlungszusammensetzung Download PDF

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Publication number
EP2367925B1
EP2367925B1 EP09795843.3A EP09795843A EP2367925B1 EP 2367925 B1 EP2367925 B1 EP 2367925B1 EP 09795843 A EP09795843 A EP 09795843A EP 2367925 B1 EP2367925 B1 EP 2367925B1
Authority
EP
European Patent Office
Prior art keywords
slurry
pearlescent agent
inorganic pearlescent
weight
rheology modifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09795843.3A
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English (en)
French (fr)
Other versions
EP2367925B2 (de
EP2367925A1 (de
Inventor
Omer Erbezci
Theresa Anne John
Bruno Jean-Pierre Matthys
Lucia Prada Fernandez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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Filing date
Publication date
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to PL09795843T priority Critical patent/PL2367925T3/pl
Publication of EP2367925A1 publication Critical patent/EP2367925A1/de
Publication of EP2367925B1 publication Critical patent/EP2367925B1/de
Application granted granted Critical
Publication of EP2367925B2 publication Critical patent/EP2367925B2/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0089—Pearlescent compositions; Opacifying agents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/1213—Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2065—Polyhydric alcohols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/221—Mono, di- or trisaccharides or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43—Solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5022—Organic solvents containing oxygen

Definitions

  • the present invention relates to a slurry, which is suitable for use as a component of liquid treatment compositions.
  • liquid treatment compositions In the preparation of liquid treatment compositions, it is an aim to improve technical capabilities thereof and aesthetics.
  • One method of improving the aesthetics of a liquid treatment composition is to make it pearlescent.
  • Pearlescence can be achieved by incorporation of a pearlescent agent into the liquid treatment composition.
  • Pearlescent agents include inorganic natural substances, such as mica, bismuth oxychloride and titanium dioxide, and organic compounds such as metal salts of higher fatty acids, fatty glycol esters and fatty acid alkanolamides.
  • the present invention relates only to the use of inorganic pearlescent agents.
  • the pearlescent agent can be acquired as a powder, suspension of the agent in a suitable suspending agent or, where the agent is a crystal, it may be produced in situ.
  • Detergent compositions and pearlescent dispersions comprising pearlescent agent fatty acid glycol ester are disclosed in the following art; US 4,717,501 (to Kao ); US 5,017,305 (to Henkel ); US 6,210,659 (to Henkel ); US 6,835,700 (to Cognis ).
  • Liquid treatment compositions containing pearlescent agents are disclosed in US 6,956,017 (to Procter & Gamble).
  • Liquid detergents for washing delicate garments containing pearlescent agent are disclosed in EP 520551 B1 (to Unilever).
  • the present invention relates to a slurry comprising inorganic pearlescent agent.
  • the slurry described in W02007/111899 A2 uses water as the carrier for pearlescent agent.
  • W02007/111899 A2 to Procter & Gamble
  • uses water as the carrier for pearlescent agent uses water as the carrier for pearlescent agent.
  • the Applicants have discovered that using water as the carrier for pearlescent agent only allows up to six weeks of physical stability, before the pearlescent agent starts to settle.
  • the inorganic pearlescent agent slurry of WO2007/11189 is prepared in a batch process. A measured quantity of the inorganic pearlescent agent slurry is then added to the continuous process used to prepare liquid treatment compositions.
  • the inorganic pearlescent agents tend to settle from the slurry suspension. This settling causes problems in the continuous processing used to prepare the liquid treatment compositions, since there will be points when there may be too much pearlecence or no pearlecence at all.
  • inorganic pearlescent agents are insoluble and without adequate solution, behave like wet sand, causing problems in processing of the slurry.
  • the wet sand behavior makes the slurry difficult to mix and requires considerable effort from the equipment used in the mixing process.
  • the present invention provides a slurry and a procedure to prepare the slurry suitable for further processing into a liquid treatment compositions.
  • the present invention specifically relates to improving the physical stability and process lifetime of an inorganic pearlescent agent slurry, and thereby improving the process of preparation and quality of the liquid treatment composition.
  • the present invention also relates to the use of combination of solvent and rheology modifier in a slurry of inorganic pearlescent agents to improve the physical stability and the process lifetime of the slurry.
  • the Applicants have discovered that replacing water by either glycerol or sorbitol solvent increases the physical stability of the slurry, in that the slurry remains physically stable 16 weeks.
  • the present invention also relates to an optimized the process of preparing the inorganic pearlescent agent slurry wherein the addition of inorganic pearlescent agent is strictly controlled.
  • an inorganic pearlescent agent slurry suitable for use in a liquid treatment composition comprising:
  • the present invention also relates to a process of preparing an inorganic pearlescent agent slurry, for use in liquid treatment compositions, comprising the steps of:
  • slurry is used herein to mean a liquid composition that is typically flowable at ambient temperature and contains water-insoluble solid particulates or other solid matter.
  • the inorganic pearlescent agent slurry of the present invention is suitable for use as a component of liquid treatment compositions suitable for laundry or house hold care applications.
  • laundry treatment composition it is meant to include all liquid compositions used in the treatment of laundry including cleaning and softening or conditioning compositions.
  • hard surface treatment composition it is meant to include all liquid compositions used in the treatment of hard surfaces, such as kitchen or bathroom surfaces, as well as dish and cook ware in the hand or automatic dishwashing operations.
  • the pearlescent agent slurry according to the present invention for this use comprises from 30% to 60% water. However there is preferably no freely added water. Where water does exist in the slurry, it is preferably present as a component of another ingredient of the slurry, such as the rheology modifier premix.
  • the inorganic pearlescent agent slurry of the present invention preferably has viscosity from 21000 to 65000 centipoises at 0.5 s -1 and from 1000 to 3000 centipoises at 20s -1 .
  • Viscosity can be determined by conventional methods. Viscosity according to the present invention is however measured using an AR 550 rheometer from TA instruments using a plate steel spindle at 40 mm diameter and a gap size of 500 ⁇ m.
  • the high shear viscosity at 20s -1 and low shear viscosity at 0.5 -1 can be obtained from a logarithmic shear rate sweep from 0.1 -1 to 25 -1 in 3 minutes time at 21°C.
  • the slurry of the present invention preferably has a pH of from 7 to 11, more preferably from 7 to 9 when measured directly from the slurry.
  • the temperature of the slurry and throughout the preparation and storage is preferably below 35 °C.
  • the used rheology modifier is Hydrogenated Castor Oil (HCO)
  • the temperature is more preferably between 10 °C and 30 °C.
  • HCO has a low melting point and will lose the rheology modifier activity when melted and cause the instability of the slurry.
  • the pearlescent agents according to the present invention are inorganic crystalline or glassy solids, transparent or translucent compounds capable of reflecting and refracting light to produce a pearlescent effect.
  • the pearlescent agents are crystalline particles insoluble in the composition in which they are incorporated.
  • the pearlescent agents have the shape of thin plates or spheres.
  • Spheres according to the present invention, are to be interpreted as generally spherical. Particle size is measured across the largest diameter of the sphere. Plate-like particles are such that two dimensions of the particle (length and width) are at least 5 times the third dimension (depth or thickness). Other crystal shapes like cubes or needles or other crystal shapes do not display pearlescent effect.
  • Many pearlescent agents like mica are natural minerals having monoclinic crystals. Shape appears to affect the stability of the agents. The spherical, even more preferably, the plate-like agents being the most successfully stabilised.
  • the pearlescent agent has particle size preferable between 5 and 32 micrometers and more preferably between 5 and 26 micrometers.
  • the slurry of the present invention preferably comprise from 1% to 35% by weight of the slurry of a 100% active inorganic pearlescent agent. More preferably the slurry comprises from 10 % to 30%, more preferably from 10% to 20%, by weight of the slurry of the 100% active inorganic pearlescent agent.
  • the pearlescent agents of the present invention are inorganic.
  • Inorganic pearlescent agents provide both dynamic and static pearlescent effect.
  • dynamic pearlescence it is meant that the composition exhibits a pearlescent effect when the composition is in motion.
  • static pearlescence it is meant that the composition exhibits pearlescence when the composition is static.
  • Inorganic pearlescent agents include those selected from the group consisting of mica, metal oxide coated mica, silica coated mica, bismuth oxychloride coated mica, bismuth oxychloride, myristyl myristate, glass, metal oxide coated glass, guanine, glitter (polyester or metallic) and mixtures thereof.
  • Suitable micas include muscovite or potassium aluminum hydroxide fluoride.
  • the platelets of mica are preferably coated with a thin layer of metal oxide.
  • Preferred metal oxides are selected from the group consisting of rutile, titanium dioxide, ferric oxide, tin oxide, alumina and mixtures thereof.
  • Pearlecence effect in these pearlescent agents develops through interference between light rays reflecting at specular angles from the top and bottom surfaces of the metal-oxide layer.
  • the agents loose color intensity as viewing angle shifts to non-specular angles and gives it the pearlescent appearance.
  • inorganic pearlescent agents are selected from the group consisting of mica and bismuth oxychloride and mixtures thereof. More preferably inorganic pearlescent agents are mica. More preferably the pearlescent agent is metal oxide coated mica, more preferable titanium oxide coated mica, bismuth oxychloride coated mica or silica coated mica and mixtures thereof. Commercially available suitable inorganic pearlescent agents are available from Merck under the tradenames Iriodin, Biron, Xirona, Timiron Colorona, Dichrona, Candurin and Ronastar.
  • inorganic pearlescent agent are available from BASF (Engelhard, Mearl) under tradenames Biju, Bi-Lite, Chroma-Lite, Pearl-Glo, Mearlite and Eckart under the tradenames Prestige Soft Silver and Prestige Silk Silver Star.
  • Inorganic pearlescent agents are preferably incorporated as a powder, and are used to prepare the slurry without the need for any additional process steps. Process to prepare the slurry will be described in more details later on.
  • Suitable solvents according to the present invention are organic solvents, selected from the group consisting of glycerol and sorbitol and mixtures thereof. Solvent is typically present at levels in the range from 10% to 50%, preferably from 20% to 40% by weight of the slurry.
  • Glycerol is a colorless, odorless and viscous liquid. It is sweet-tasting and of low toxicity. Glycerol has three hydroxyl groups that are responsible for its solubility in water and its hydroscopic nature.
  • Sorbitol is a sugar alcohol, which has six hydroxyl groups that are responsible for its solubility in water and its hydroscopic nature.
  • the slurry of the present invention comprises a rheology modifier.
  • the overall objective in adding such a rheology modifier to the slurry herein is to arrive at a slurry which is suitably functional and aesthetically pleasing from the standpoint of slurry thickness, pourability, physically stability, optical properties, and/or particles suspension performance.
  • the rheology modifier will serve to establish appropriate rheological characteristics of the slurry and will do so without imparting any undesirable attributes to the product such as unacceptable optical properties or unwanted phase separation.
  • rheological characteristics are meant characteristics of the flow of the slurry under stress and strain.
  • the rheology modifier component of the pearlescent agent slurry herein can be characterized as an "external” or “internal” rheology modifier.
  • An "external" rheology modifier for the purposes of this invention, is a material which has as its primary function that of providing rheological alteration of the liquid matrix. Generally, therefore, an external rheology modifier will not, in and of itself, provide any significant fabric cleaning or fabric care benefit or any significant ingredient solubilization benefit.
  • An external rheology modifier is thus distinct from an "internal" rheology modifier which may also alter matrix rheology but which has been incorporated into the liquid product for some additional primary purpose.
  • a preferred internal rheology modifier would be anionic surfactants which can serve to alter rheological properties of the slurry, but which have been added to the slurry primarily to act as the cleaning ingredient in the final product.
  • the rheology modifier of the slurry of the present invention is used to provide a liquid matrix for the pearlescent agent slurry which has certain rheological characteristics.
  • the principal characteristic is that the matrix must be "shear-thinning".
  • a shear-thinning fluid is one with a viscosity which decreases as shear is applied to the fluid.
  • the liquid matrix of the slurry should have a relatively high viscosity.
  • shear is applied to the pearlescent agent slurry, however, such as in the act of pouring, pumping or mixing the slurry the viscosity of the matrix should be lowered to the extent that dispensing and mixing of the slurry is easily and readily accomplished.
  • One type of rheological modifier agent which is especially useful in the slurry of the present invention comprises non-polymeric (except for conventional alkoxylation), crystalline hydroxy-functional materials which can form thread-like structuring systems throughout the liquid matrix when they are crystallized within the matrix in situ.
  • Such materials can be generally characterized as crystalline, hydroxyl-containing fatty acids, fatty esters or fatty waxes.
  • preferred crystalline, hydroxyl-containing rheology modifiers include castor oil and its derivatives. Especially preferred derivatives are such as hydrogenated castor oil (HCO) and hydrogenated castor wax.
  • HCO hydrogenated castor oil
  • Commercially available, castor oil-based, crystalline, hydroxyl-containing rheology modifiers include THIXCIN ® from Rheox, Inc. (now Elementis).
  • rheology modifiers include those suitable for use as crystalline, hydroxyl-containing rheology modifiers.
  • An example of a rheology modifier of this type is 1,4-di-O-benzyl-D-Threitol in the R,R, and S,S forms and any mixtures, optically active or not.
  • All of these crystalline, hydroxyl-containing rheology modifiers as hereinbefore described are believed to function by forming thread-like structuring systems when they are crystallized in situ within the liquid matrix of the slurry herein or within a pre-mix which is used to form such a liquid matrix. Such crystallization is brought about by heating an aqueous mixture of these materials to a temperature above the melting point of the rheology modifier, followed by cooling of the mixture to room temperature while maintaining the liquid under agitation.
  • rheology modifiers besides the non-polymeric, crystalline, hydroxyl-containing rheology modifiers described hereinbefore, may be utilized in the slurry herein.
  • Polymeric materials which will provide shear-thinning characteristics to the aqueous liquid matrix may also be employed.
  • Suitable polymeric rheology modifiers include those of the polyacrylate, polysaccharide or polysaccharide derivative type.
  • Polysaccharide derivatives typically used as rheology modifiers comprise polymeric gum materials. Such gums include pectine, alginate, arabinogalactan (gum Arabic), carrageenan, gellan gum, xanthan gum and guar gum.
  • Gellan gum is a heteropolysaccharide prepared by fermentation of Pseudomonaselodea ATCC 31461. Gellan gum is commercially marketed by CP Kelco U.S., Inc. under the KELCOGEL tradeneme. Processes for preparing gellan gum are described in U.S. Patent Nos. 4,326,052 ; 4,326,053 ; 4,377,636 and 4,385,123 .
  • the rheology modifier is a polyacrylate of unsaturated mono- or di-carbonic acid and 1-30C alkyl ester of the (meth) acrylic acid.
  • Such copolymers are available from Noveon Inc under the tradename Carbopol Aqua 30.
  • the rheology modifier of the present invention is an external rheology modifier.
  • the rheology modifier is selected from the group consisting of non-polymeric crystalline, hydroxy-functional materials, polymeric rheology modifiers and mixtures thereof.
  • the rheology modifier imparts shear thinning characteristics to the slurry.
  • Crystalline, hydroxy-functional materials are rheology modifiers which form thread-like structuring systems throughout the matrix of the composition upon in situ crystallization in the matrix.
  • Polymeric rheology modifiers are preferably selected from polyacrylates, polymeric gums, other non-gum polysaccharides, and combinations of these polymeric materials.
  • the pearlescent agent slurry of the present invention preferably comprise from 40% to 80% by weight of the inorganic pearlescent agent slurry of rheology modifier. Preferably from 40% to 60% by weight, more preferably from 40% to 50% by weight, of the inorganic pearlescent agent slurry herein.
  • the slurry may also comprise a surfactant.
  • Said surfactant may be a component of the rheology modifier or not.
  • Surfactant is used in present invention as detersive surfactant for soil suspension purposes.
  • Detersive surfactants utilized can be of the anionic, nonionic, zwitterionic, ampholytic or cationic type or can comprise compatible mixtures of these types. More preferably surfactants are selected from the group consisting of anionic, nonionic, cationic surfactants and mixtures thereof. Preferably the compositions are substantially free of betaine surfactants.
  • Detergent surfactants useful herein are described in U.S. Patent 3,664,961, Norris, issued May 23, 1972 , U.S. Patent 3,919,678, Laughlin et al., issued December 30, 1975 , U.S. Patent 4,222,905, Cockrell, issued September 16, 1980 , and in U.S. Patent 4,239,659, Murphy, issued December 16, 1980 . Anionic and nonionic surfactants are preferred.
  • Useful anionic surfactants can themselves be of several different types.
  • water-soluble salts of the higher fatty acids i.e., "soaps"
  • This includes alkali metal soaps such as the sodium, potassium, ammonium, and alkyl ammonium salts of higher fatty acids containing from about 8 to about 24 carbon atoms, and preferably from about 12 to about 18 carbon atoms.
  • Soaps can be made by direct saponification of fats and oils or by the neutralization of free fatty acids.
  • Particularly useful are the sodium and potassium salts of the mixtures of fatty acids derived from coconut oil and tallow, i.e., sodium or potassium tallow and coconut soap.
  • non-soap anionic surfactants which are suitable for use herein include the water-soluble salts, preferably the alkali metal, and ammonium salts, of organic sulfuric reaction products having in their molecular structure an alkyl group containing from about 10 to about 20 carbon atoms and a sulfonic acid or sulfuric acid ester group.
  • alkyl is the alkyl portion of acyl groups.
  • this group of synthetic surfactants are a) the sodium, potassium and ammonium alkyl sulfates, especially those obtained by sulfating the higher alcohols (C 8 -C 18 carbon atoms) such as those produced by reducing the glycerides of tallow or coconut oil; b) the sodium, potassium and ammonium alkyl polyethoxylate sulfates, particularly those in which the alkyl group contains from 10 to 22, preferably from 12 to 18 carbon atoms, and wherein the polyethoxylate chain contains from 1 to 15, preferably 1 to 6 ethoxylate moieties; and c) the sodium and potassium alkylbenzene sulfonates in which the alkyl group contains from about 9 to about 15 carbon atoms, in straight chain or branched chain configuration, e.g., those of the type described in U.S.
  • Patents 2,220,099 and 2,477,383 Especially valuable are linear straight chain alkylbenzene sulfonates in which the average number of carbon atoms in the alkyl group is from about 11 to 13, abbreviated as C 11 -C 13 LAS.
  • Preferred nonionic surfactants are those of the formula R 1 (OC 2 H 4 ) n OH, wherein R 1 is a C 10 -C 16 alkyl group or a C 8 -C 12 alkyl phenyl group, and n is from 3 to about 80.
  • Particularly preferred are condensation products of C 12 -C 15 alcohols with from about 5 to about 20 moles of ethylene oxide per mole of alcohol, e.g., C 12 -C 13 alcohol condensed with about 6.5 moles of ethylene oxide per mole of alcohol.
  • the inorganic pearlescent agent slurry of the present invention may comprise from about 6% to 13% by weight of the slurry of a surfactant.
  • Surfactant is a particularly preferred ingredient of the slurry when the rheology modifier is Hydrogenated Castor Oil.
  • the inorganic pearlescent agent slurry is preferably used as a component of a liquid treatment composition. It is therefore preferable that the slurry meets requirements of the liquid treatment composition and is processable with other components thereof. Suitable components of the liquid treatment composition are listed and discussed in detail below.
  • the liquid treatment composition preferably comprises rheology modifier, in addition to that used in the pearlescent agent slurry.
  • rheology modifier in addition to that used in the pearlescent agent slurry.
  • the function and choice of rheology modifier in the liquid treatment composition is the same as is already described with respect to the slurry.
  • the liquid treatment composition preferably comprises detersive surfactant, in addition to that used in the pearlescent agent slurry.
  • detersive surfactant in addition to that used in the pearlescent agent slurry.
  • the function and choice of detersive surfactant in the liquid treatment composition is the same as is already described with respect to the slurry.
  • the liquid treatment composition may comprise other ingredients selected from the list of optional ingredients set out below.
  • an "effective amount" of a particular laundry adjunct is preferably from 0.01%, more preferably from 0.1%, even more preferably from 1% to 20%, more preferably to 15%, even more preferably to 10%, still even more preferably to 7%, most preferably to 5% by weight of the detergent compositions.
  • fabric care benefit agent refers to any material that can provide fabric care benefits such as fabric softening, color protection, pill/fuzz reduction, anti-abrasion, anti-wrinkle, and the like to garments and fabrics, particularly on cotton and cotton-rich garments and fabrics, when an adequate amount of the material is present on the garment/fabric.
  • fabric care benefit agents include cationic surfactants, silicones, polyolefin waxes, latexes, oily sugar derivatives, cationic polysaccharides, polyurethanes, fatty acids and mixtures thereof.
  • Fabric care benefit agents when present in the treatment composition are suitably at levels of up to about 30% by weight of the composition, more typically from 1% to 20%, preferably from 2% to 10% in certain embodiments.
  • liquid treatment compositions may optionally comprise a builder. Suitable builders are discussed below:
  • Suitable polycarboxylate builders include cyclic compounds, particularly alicyclic compounds, such as those described in U.S. Patents 3,923,679 ; 3,835,163 ; 4,158,635 ; 4,120,874 and 4,102,903 .
  • ether hydroxypolycarboxylates copolymers of maleic anhydride with ethylene or vinyl methyl ether, 1, 3, 5-trihydroxy benzene-2, 4, 6-trisulphonic acid, and carboxymethyloxysuccinic acid
  • various alkali metal, ammonium and substituted ammonium salts of polyacetic acids such as ethylenediamine tetraacetic acid and nitrilotriacetic acid
  • polycarboxylates such as mellitic acid, succinic acid, oxy-disuccinic acid, polymaleic acid, benzene 1,3,5-tricarboxylic acid, carboxymethyloxysuccinic acid, and soluble salts thereof.
  • Citrate builders e.g., citric acid and soluble salts thereof (particularly sodium salt), are polycarboxylate builders of particular importance for heavy duty liquid detergent formulations due to their availability from renewable resources and their biodegradability. Oxydisuccinates are also especially useful in such compositions and combinations.
  • succinic acid builders include the C5-C20 alkyl and alkenyl succinic acids and salts thereof.
  • a particularly preferred compound of this type is dodecenylsuccinic acid.
  • succinate builders include: laurylsuccinate, myristylsuccinate, palmitylsuccinate, 2-dodecenylsuccinate (preferred), 2-pentadecenylsuccinate, and the like. Laurylsuccinates are the preferred builders of this group, and are described in EP-A-0 200 263, published November 5, 1986 .
  • nitrogen-containing, phosphor-free aminocarboxylates include ethylene diamine disuccinic acid and salts thereof (ethylene diamine disuccinates, EDDS), ethylene diamine tetraacetic acid and salts thereof (ethylene diamine tetraacetates, EDTA), and diethylene triamine penta acetic acid and salts thereof (diethylene triamine penta acetates, DTPA).
  • polycarboxylates are disclosed in U.S. Patent 4,144,226, Crutchfield et al, issued March 13, 1979 and in U.S. Patent 3,308,067, Diehl, issued March 7, 1967 . See also Diehl U.S. Patent 3,723,322 .
  • Such materials include the water-soluble salts of homo-and copolymers of aliphatic carboxylic acids such as maleic acid, itaconic acid, mesaconic acid, fumaric acid, aconitic acid, citraconic acid and methylenemalonic acid.
  • Bleach system suitable for use in liquid treatment compositions contain one or more bleaching agents.
  • suitable bleaching agents are selected from the group consisting of catalytic metal complexes, activated peroxygen sources, bleach activators, bleach boosters, photobleaches, bleaching enzymes, free radical initiators, and hyohalite bleaches.
  • Perfumes are preferably incorporated into the liquid treatment compositions.
  • the perfume ingredients may be premixed to form a perfume accord prior to adding to the detergent compositions of the present invention.
  • the term "perfume” encompasses individual perfume ingredients as well as perfume accords. More preferably the liquid treatment compositions comprise perfume microcapsules.
  • Perfume microcapsules comprise perfume raw materials encapsulated within a capsule made of materials selected from the group consisting of urea and formaldehyde, melamine and formaldehyde, phenol and formaldehyde, gelatine, polyurethane, polyamides, cellulose ethers, cellulose esters, polymethacrylate and mixtures thereof, most preferably the perfume is encapsulated with a shell of melamine and formaldehyde. Encapsulation techniques can be found in "Microencapsulation”: methods and industrial applications edited by Benita and Simon (marcel Dekker Inc 1996 ).
  • the solvent system in the liquid treatment compositions can be a solvent system containing water alone or mixtures of organic solvents with water.
  • Preferred organic solvents include 1,2-propanediol, ethanol, glycerol, dipropylene glycol, methyl propane diol and mixtures thereof.
  • Other lower alcohols, C 1 -C 4 alkanolamines such as monoethanolamine and triethanolamine, can also be used.
  • Solvent systems can be absent, for example from anhydrous solid embodiments of the invention, but more typically are present at levels in the range of from 0.1% to 98%, preferably at least 10% to 95%, more usually from 25% to 75%.
  • Dyes are conventionally defined as being acid, basic, reactive, disperse, direct, vat, sulphur or solvent dyes, etc.
  • direct dyes acid dyes and reactive dyes are preferred, direct dyes are most preferred.
  • Direct dyes are a group of water-soluble dye taken up directly by fibers from an aqueous solution containing an electrolyte, presumably due to selective adsorption.
  • directive dye refers to various planar, highly conjugated molecular structures that contain one or more anionic sulfonate group.
  • Acid dyes are a group of water soluble anionic dyes that is applied from an acidic solution.
  • Reactive dyes are a group of dyes containing reactive groups capable of forming covalent linkages with certain portions of the molecules of natural or synthetic fibers.
  • suitable fabric substantive dyes useful herein may be an azo compound, stilbenes, oxazines and phthalocyanines.
  • Suitable fabric substantive dyes for use herein include those listed in the Color Index as Direct Violet dyes, Direct Blue dyes, Acid Violet dyes and Acid Blue dyes.
  • the hueing dye is included in the laundry detergent composition in an amount sufficient to provide a tinting effect to fabric washed in a solution containing the detergent.
  • the treatment composition, and thus the slurry, of the present invention may be encapsulated within a water-soluble film.
  • the water-soluble film may be made from polyvinyl alcohol or other suitable variations, including carboxy methyl cellulose, cellulose derivatives, starch, modified starch, sugars, PEG, waxes, or combinations thereof.
  • the water-soluble film may include other adjuncts such as co-polymer of vinyl alcohol and a carboxylic acid.
  • adjuncts such as co-polymer of vinyl alcohol and a carboxylic acid.
  • the water-soluble film may further comprise additional co-monomers. Suitable additional co-monomers include sulphonates and ethoxylates. An example of preferred sulphonic acid is 2-acrylamido-2-methyl-1-propane sulphonic acid (AMPS).
  • AMPS 2-acrylamido-2-methyl-1-propane sulphonic acid
  • a suitable water-soluble film for use in the context of the present invention is commercially available under tradename M8630TM from Mono-Sol of Indiana, US.
  • the water-soluble film herein may also comprise ingredients other than the polymer or polymer material.
  • plasticisers for example glycerol, ethylene glycol, diethyleneglycol, propane diol, 2-methyl-1,3-propane diol, sorbitol and mixtures thereof, additional water, disintegrating aids, fillers, anti-foaming agents, emulsifying/dispersing agents, and/or antiblocking agents.
  • the pouch or water-soluble film itself comprises a detergent additive to be delivered to the wash water, for example organic polymeric soil release agents, dispersants, dye transfer inhibitors.
  • the surface of the film of the pouch may be dusted with fine powder to reduce the coefficient of friction.
  • Sodium aluminosilicate, silica, talc and amylose are examples of suitable fine powders.
  • the encapsulated pouches can be made using any convention known techniques. More preferably the pouches are made using horizontal form filling thermoforming techniques.
  • cleaning adjunct materials include, but are not limited to, alkoxylated benzoic acids or salts thereof such as trimethoxy benzoic acid or a salt thereof (TMBA); enzyme stabilizing systems; chelants including aminocarboxylates, aminophosphonates, nitrogen-free phosphonates, and phosphorous- and carboxylate-free chelants; inorganic builders including inorganic builders such as zeolites and water-soluble organic builders such as polyacrylates, acrylate / maleate copolymers and the likescavenging agents including fixing agents for anionic dyes, complexing agents for anionic surfactants, and mixtures thereof; effervescent systems comprising hydrogen peroxide and catalase; optical brighteners or fluorescers; soil release polymers; dispersants; suds suppressors; dyes; colorants; filler salts such as sodium sulfate; hydrotropes such as toluenesulfonates, cumenesulfonates and naphthalenes
  • Suitable materials include those described in U.S. Patent Nos. 5,705,464 , 5,710,115 , 5,698,504 , 5,695,679 , 5,686,014 and 5,646,101 . Mixtures of adjuncts - Mixtures of the above components can be made in any proportion.
  • the slurry of the present invention is prepared by mixing the ingredients together.
  • the order and quantity of addition of inorganic pearlecent agent is important and the inorganic pearlescent agent should be added in two parts. Said process comprises the steps of
  • the inorganic pearlescent agents are insoluble and without adequate solution, behave like wet sand, causing problems in processing of the slurry.
  • the wet sand behavior makes the slurry difficult to mix and requires considerable effort from the equipment used in the mixing process.
  • By adding the inorganic pearlescent agent in two parts will produce processable and homogenous slurry.
  • first inorganic pearlescent agent addition from 10% to 66% by weight of the inorganic pearlescent agent is added in steps and mixed.
  • Hydrogenated castor oil is a preferred rheology modifier.
  • a premix of the hydrogenated castor oil and surfactant are prepared in a batch process.
  • the water is heated from 80 °C to 98 °C.
  • the surfactant is then added into the solution and pH is adjusted to 7-8 by using a suitable pH adjusting agent e.g. NaOH and buffer.
  • the hydrogenated castor oil rheology modifier is dispersed in solution, at the temperature above the melting point of rheology modifier and the mixture is emulsified.
  • the premix is then crystallized by cooling the emulsion down by 1°C/min ⁇ 0.2°C/min to an end point of 25 °C.
  • the remaining inorganic pearlescent agent is added in steps and mixed.
  • the mixing speed of the pearlescent agent slurry depends on the composition of the slurry; higher percentage proportion of pearlescent agent requires faster mixing speed compared to lower percentage of pearlescent agent. Adequate and constant mixing speed is required to ensure blending and incorporation of pearlescent agent. However the shear stress on the process should be kept to a minimum to avoid destroying the network created by the rheology modifier.
  • Viscosity according to the present invention is measured using an AR 550 rheometer from TA instruments using a plate steel spindle at 40 mm diameter and a gap size of 500 ⁇ m.
  • the high shear viscosity (HSV) at 20s -1 and low shear viscosity (LSV) at 0.5 -1 can be obtained from a logarithmic shear rate sweep from 0.1 -1 to 25 -1 in 3 minutes time at 21°C.
  • examples A-D are examples of the slurry of the present invention.
  • a B C D Mica 10.00 10.00 25.00 30.00 Water 30.40 48.64 30.40 30.40 Glycerol 50.00 26.00 35.00 30.00 Rheology modifier 1.60 2.56 1.60 1.60 Surfactant 6.40 10.24 6.40 6.40 NaOH (50%) 1.60 2.56 1.60 1.60 Total 100.00 100.00 100.00 100.00 LSV, cPs 21013 29934 32681 31386 HSV, cPs 1101 1297 1756 1821
  • a batch size is 1100g and beaker diameter is 140 mm.
  • Impeller type is pitched blade turbine and impeller diameter is 100 mm.
  • the clearance C (mm) is the distance from the bottom of the beaker to the impeller and it can be measured with any measuring device i.e. meter or ruler.
  • Step time (min) Mixing speed (rpm) Clearance C (mm) Amount compound added (g) Addition rate (kg/min/m ⁇ 2) glycerol addition 0 1 st mica addition 1 200 10 6 0.39 increase rpm 1.5 400 10 1 st mica addition 2 400 10 12.24 0.80 1 st mica addition 3 400 10 12.56 0.82 1 st mica addition 3.5 400 10 6.04 0.78 blending 3.5 400 10 blending 4 100 10 Rheology modifier addition 5.5 200 10 increase rpm 6.5 250 10 Rheology modifier addition 7.5 250 10 blending 8 200 10 blending 9 250 10 2 nd mica addition 10 250 10 13.6 0.88 2 nd mica addition 11 300 10 16.4 1.07 2 nd mica addition 12 300 10 15.5 1.01 2 nd mica addition 12.5 300 10 15 1.95 2 nd mica addition 13.5 300 10 13.25 0.86 blending 14 250 10 blending 17 250 10
  • a batch size is 1100g and beaker diameter is 140 mm.
  • Impeller type is pitched blade turbine and impeller diameter is 100 mm.
  • the clearance C (mm) is the distance from the bottom of the beaker to the impeller and it can be measured with any measuring device i.e. meter or ruler.
  • Step time (min) Mixing speed (rpm) Clearance C (mm) Amount compound added (g) Addition rate (kg/min/m ⁇ 2) glycerol addition 1 st mica addition 1 200 10 13.1 0.85 1 st mica addition 2 300 10 15.3 0.99 1 st mica addition 2.5 300 10 8.3 1.08 Rheology modifier addition 3.5 300 10 Rheology modifier addition 5.5 300 10 blending 6 200 10 blending 7 200 10 increase rpm 7.5 350 2 nd mica addition 8 300 10 14.7 0.95 2 nd mica addition 9 400 10 14.3 0.93 2 nd mica addition 10 400 10 17.4 1.13 2 nd mica addition 11 400 10 13.4 0.87 2 nd mica addition 12 400 10 13.9 0.90 blending 13 300 10 blending 15 300 10
  • a batch size is 1100g and beaker diameter is 140 mm. Impeller type is pitched blade turbine and impeller diameter is 100 mm. Step time (min) Mixing speed (rpm) Clearance C (mm) Amount compound added (g) Addition rate (kg/min/m ⁇ 2) glycerol addition 0 1 st mica addition 1 250 10 16.6 1.08 1 st mica addition 2 250 10 14.7 0.95 1 st mica addition 3 250 10 14.0 0.91 1 st mica addition 4 250 10 16.3 1.06 1 st mica addition 5 250 10 11.4 0.74 1 st mica addition 6 250 10 20.6 1.34 blending 6 300 10 blending 6.5 250 10 Rheology modifier addition 7.5 300 10 Rheology modifier addition 8.5 300 10 blending 9 300 10 blending 9.5 200 10 blending 10 200 10 2 nd mica addition 11 250 10 16.8 1.09 2 nd mica addition 12 250 10 17.5 1.14 2 nd mica addition 13 300 10 11.8 0.77 2 nd mica addition 14 300 10 13.8 0.90 2 nd mica addition 15
  • a batch size is 30 kg and tank diameter is 390 mm.
  • Impeller type is pitched blade turbine and impeller diameter is 250 mm.
  • the clearance C (mm) is the distance from the bottom of the tank to the impeller and it can be measured with any measuring device i.e. meter or ruler.
  • Step Mixing speed (rpm) Clearance C (mm) Amount compound added (g) Addition rate (kg/min/m ⁇ 2) glycerol addition 100 60 1 st mica addition 100 60 2980 0.80 blending 100 60 Rheology modifier addition 100 60 blending 150 100 2 nd mica addition 190 150 5600 1.20 blending 190 150

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Claims (10)

  1. Anorganischer Perlglanzmittelbrei, geeignet zum Gebrauch in einer flüssigen Behandlungszusammensetzung, der Folgendes umfasst:
    a) anorganisches Perlglanzmittel,
    b) organisches Lösemittel, ausgewählt aus der Gruppe bestehend aus Glycerin, Sorbit und Mischungen davon, und
    c) Rheologiemodifikator.
  2. Brei nach dem vorstehenden Anspruch, worin das anorganische Perlglanzmittel aus der Gruppe bestehend aus Glimmer oder Bismutoxychlorid, stärker bevorzugt metalloxidbeschichtetem Glimmer, stärker bevorzugt TiO2-beschichtetem Glimmer, bismutoxychloridbeschichtetem Glimmer oder silicabeschichtetem Glimmer und Mischungen davon ausgewählt ist.
  3. Brei nach einem der vorstehenden Ansprüche, wobei der Rheologiemodifikator aus der Gruppe bestehend aus nicht-polymerem kristallinen, hydroxyfunktionalem Material, Polyacrylat, polymerem Gummi, anderen nichtgummihaltigen Polysaccharid-Rheologiemodifikatoren und Mischungen davon ausgewählt ist.
  4. Brei nach einem der vorstehenden Ansprüche, der ferner ein anionisches Tensid umfasst, ausgewählt aus der Gruppe bestehend aus C11-C18-Alkylbenzol-sulfonaten (LAS), verzweigtkettigen und ungeordneten C10-C20-Alkylsulfaten (AS), C10-C18-Alkylethoxysulfaten (AExS), worin x 1 bis 30 beträgt, mittelkettenverzweigten Alkylsulfaten, mittelkettenverzweigten Alkylalkoxysulfaten, C10-C18-Alkylalkoxycarboxylaten, die 1 bis 5 Ethoxyeinheiten umfassen, modifizierten Alkylbenzolsulfonaten (MLAS), C12-C20-Methylestersulfonat (MES), C10-C18-alpha-Olefinsulfonat (AOS), C6-C20-Sulfosuccinaten und Mischungen davon.
  5. Zusammensetzung nach einem der vorstehenden Ansprüche, die ferner ein nichtionisches Tensid umfasst, ausgewählt aus der Gruppe bestehend aus C9-C18-Alkylethoxylaten, C6-C12-Alkylphenolalkoxylaten, C12-C18-Alkohol und C6-C12-Alkylphenolkondensaten mit Ethylenoxid-/Propylenoxidblockpolymeren, mittelkettenverzweigten C14-C22-Alkoholen, mittelkettenverzweigten C14-C22-Alkylalkoxylaten, Alkylpolyglycosiden, Polyhydroxy-Fettsäureamiden, etherverkappten poly(oxyalkylierten) Alkoholen, (C12-18) Fettsäuresorbitanestern und Mischungen davon.
  6. Brei nach einem vorstehenden Anspruch, wobei das Gewicht des Lösemittels in einer Konzentration von 10 % bis 50 % des Gewichts des anorganischen Perlglanzmittelbreis, stärker bevorzugt von 20 % bis 40 % des Gewichts des anorganischen Perlglanzmittelbreis vorhanden ist.
  7. Brei nach einem der vorstehenden Ansprüche, wobei das anorganische Perlglanzmittel in einer Konzentration von 1 % bis 35 % des Gewichts des anorganischen Perlglanzmittelbreis vorhanden ist, stärker bevorzugt von 10 % bis 30 % und stärker bevorzugt von 10 % bis 20 % des Gewichts des anorganischen Perlglanzmittelbreis.
  8. Brei nach einem der vorstehenden Ansprüche, wobei der Rheologiemodifikator in einer Konzentration von 40 % bis 80 % des Gewichts des anorganischen Perlglanzmittelbreis vorhanden ist, stärker bevorzugt von 40 % bis 60 % und stärker bevorzugt von 40 % bis 50 % des Gewichts des anorganischen Perlglanzmittelbreis.
  9. Brei nach einem der vorstehenden Ansprüche, wobei der Rheologiemodifikator als eine Vormischung aus gehärtetem Rizinusöl und Tensid vorhanden ist und wobei das Tensid vorzugsweise in einer Konzentration von 6 % bis 13 % des Gewichts der Rheologiemodifikator-Vormischung vorhanden ist.
  10. Verfahren zum Herstellen des Breis nach einem der vorstehenden Ansprüche zum Gebrauch in Waschmittelzusammensetzungen, das folgende Schritte umfasst:
    I) Mischen von organischem Lösemittel, ausgewählt aus der Gruppe bestehend aus Glycerin, Sorbit und Mischungen davon, mit 10 % bis 66 % des Gewichts des 100%ig aktiven anorganischen Perlglanzmittels.
    II) Hinzufügen des Rheologiemodifikators und Vermischen
    III) Hinzufügen des restlichen anorganischen Perlglanzmittels.
EP09795843.3A 2008-12-18 2009-12-10 Aufschlämmung mit perlglanzmittel für flüssige behandlungszusammensetzung Not-in-force EP2367925B2 (de)

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PL09795843T PL2367925T3 (pl) 2008-12-18 2009-12-10 Zawiesina środka perlizującego do stosowania w ciekłych kompozycjach do obróbki

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US13856708P 2008-12-18 2008-12-18
PCT/US2009/067465 WO2010080326A1 (en) 2008-12-18 2009-12-10 Pearlescent agent slurry for liquid treatment composition

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EP2367925A1 EP2367925A1 (de) 2011-09-28
EP2367925B1 true EP2367925B1 (de) 2013-09-04
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JP5425929B2 (ja) 2014-02-26
CA2743598C (en) 2013-09-24
CN102257118A (zh) 2011-11-23
JP2012511624A (ja) 2012-05-24
RU2011120265A (ru) 2013-01-27
RU2509799C2 (ru) 2014-03-20
CA2743598A1 (en) 2010-07-15
ES2434123T3 (es) 2013-12-13
WO2010080326A1 (en) 2010-07-15
ES2434123T5 (es) 2017-11-02
EP2367925B2 (de) 2017-07-05
EP2367925A1 (de) 2011-09-28

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