WO2001034110A1 - Utilisation d'un alcool gras dans une composition parfumante - Google Patents
Utilisation d'un alcool gras dans une composition parfumante Download PDFInfo
- Publication number
- WO2001034110A1 WO2001034110A1 PCT/IB2000/001499 IB0001499W WO0134110A1 WO 2001034110 A1 WO2001034110 A1 WO 2001034110A1 IB 0001499 W IB0001499 W IB 0001499W WO 0134110 A1 WO0134110 A1 WO 0134110A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- vegetable
- fatty alcohol
- perfuming
- animal
- 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.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q13/00—Formulations or additives for perfume preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/342—Alcohols having more than seven atoms in an unbroken chain
Definitions
- the present invention relates to the field of perfumery. It relates more particularly to the use in a perfuming composition of a fatty alcohol capable of being obtained by a process for reducing the carbonyl function of a vegetable or animal oil with appropriate quantities of polymethyl-hydroxysiloxane.
- fatty alcohols in cosmetic compositions are well known in the prior art. Mention may be made, for example, of patent application WO 96/37285, which discloses the use of fatty alcohols in emulsifying cosmetic compositions, or even application WO 97/01326, which describes cream compositions comprising in particular, among the hydrophobic agents used, fat.
- the fatty alcohols used have a function of structuring agent to assist the rheological characteristics of the composition. More generally, long-chain fatty alcohols are therefore used in cosmetic or pharmaceutical compositions as emollients, structuring agents in emulsions, or even stabilizers in an emulsifying system. They are frequently found in compositions of hair care products, moisturizers for dry skin or in pharmaceutical bases.
- fatty alcohols capable of being obtained by reduction of the carbonyl function of a vegetable or animal oil of natural origin could be advantageously used in compositions Fragrant.
- these fatty alcohols can have, quite unexpectedly, a function of solvent or cosolvent in these perfume compositions.
- fatty alcohols of the invention in perfume compositions, in particular as solubilizers of the perfume ingredients which form part of these compositions, has numerous advantages.
- solvents such as ethanol or isopropanol
- Ethanol makes it possible to dissolve the perfume ingredients well which the perfumer uses.
- Perfumes and colognes that are found on the market usually contain between 50 and 95% ethanol by volume.
- this type of solvent commonly used in perfumes or other perfume compositions may be subject to restrictions of use by the legislation of certain countries. This is why we seek to replace this type of solvent in the aforementioned products.
- fatty alcohols from vegetable or animal oils can advantageously replace all or part of the aforementioned solvents commonly used in perfumery. These products of natural origin easily dissolve any type of perfuming ingredient.
- the fatty alcohols of the present invention are capable of being obtained by reduction of the carbonyl function of a vegetable or animal oil.
- This process comprises reacting said oil with appropriate quantities of polymethyl-hydroxysiloxane (PMHS) in the presence of a catalytic system prepared from a metal salt or complex and a reducing agent, followed by the hydrolysis of the siloxane obtained by means of a basic agent and the separation and purification of the desired alcohol thus formed.
- PMHS polymethyl-hydroxysiloxane
- PMHS soluble hydrides of metals such as zinc, manganese or iron.
- PMHS is a cheap and abundant co-product in the silicone industry. Stable in air and water, it is particularly easy to use in any other unknown multipurpose reactor, while the use of hydrides such as LiAlH 4 and NaBH used in reductions "classic" need to work inert and dry reactor.
- This reaction is preferably catalyzed by soluble zinc hydrides generated for example by reaction between a soluble zinc carboxylate and a hydrogen donor such as NaBH 4 .
- the present invention therefore relates to the use in a perfuming composition of a fatty alcohol capable of being obtained by a process for reducing the carbonyl function of a vegetable or animal oil, said process comprising the reaction of said oil with quantities appropriate PMHS in the presence of a catalyst system prepared from a metallic salt or complex and a reducing agent, followed by hydrolysis of the siloxane obtained by means of a basic agent and the separation and purification of the desired alcohol thus formed.
- fatty alcohols used according to the invention there may be mentioned as preferred those which constitute the reduction product of a selected vegetable oil from the group consisting of the olive oil, sunflower oil, palm oil, cottonseed oil. rapeseed oil, soybean oil, sesame oil, jojoba oil or coconut oil.
- the fatty alcohols of the invention have other advantages when they are used in a perfuming composition.
- these compounds give the composition to which they are added a feel that is both soft and non-greasy when it is applied to the skin, while a conventional solvent such as ethanol will tend to dry the skin.
- the alcohols of the invention are of particularly advantageous use not only in perfumes, colognes and toilet waters, but also in applications such as perfumed oils for the skin or the hair.
- fatty alcohols from vegetable or animal oils according to the invention is not limited to the aforementioned products, but may also be suitable for other perfumery applications, in particular in functional perfumery. Examples of this type of application include shower and bath gels, shampoos, deodorants or antiperspirants.
- the natural alcohols according to the present invention are therefore useful in numerous applications.
- the natural fatty alcohols resulting from the reduction of a vegetable or animal oil have a solvent or co-solvent function in a perfuming composition. Indeed, these components solubilize advantageously any type of perfuming ingredient.
- the fatty alcohols of the invention can be used as solvents both in a perfume composition comprising in addition to the perfume additives and adjuvants dependent on the final application, as in a base composition or concentrated perfume comprising only perfume raw materials .
- the solvents generally used in these latter compositions namely diethyl phthalate or dipropylene glycol, are solvents suitable for dissolving all the raw materials, both liquid and solid.
- the fatty alcohols of the invention could also dissolve these substances and thus replace in particular diethyl phatalate or dipropylene glycol.
- the invention also relates to a perfume composition characterized in that it contains a fatty alcohol capable of being obtained by the reduction process described in US 5,831,133 or WO 99/12877.
- the natural fatty alcohol present in a perfume composition according to the invention advantageously replaces, totally or in part, the solvent generally used. It therefore acts either as the sole solvent, or as co-solvent in admixture with ethyl alcohol, isododecane or other solvents known to those skilled in the art and used in this type of composition.
- the proportion of ethanol for example can be reduced or even eliminated.
- the compounds of the invention advantageously make it possible, thanks to their structure, to dissolve the scent in the oil.
- This property of fatty alcohols makes them very useful in any type of perfuming composition containing an oil such as paraffin oil. Indeed, they retain the properties of the natural oils from which they come while dissolving all the ingredients of the composition.
- the perfume composition according to the invention may contain, in addition to a fatty alcohol derived from an oil of natural origin and a perfume ingredient, a volatile agent.
- a volatile agent for volatile agent present in the perfuming composition according to the invention may be mentioned as preferred volatile hydrocarbons, volatile silicone oils, isopentane or a mixture of these compounds. The latter are cited by way of nonlimiting examples, the person skilled in the art being able to choose other suitable volatile agents than those mentioned.
- a person skilled in the art is also able to choose one or more perfuming ingredients according to the nature of the product to be perfumed and the desired olfactory effect.
- perfuming ingredients can belong to classes as varied as alcohols, aldehydes, ketones, esters, ethers, acetates, nitriles, terpene hydrocarbons. heterocyclic nitrogen or sulfur compounds, as well as essential oils of natural or synthetic origin. Many of these ingredients are also listed in reference texts such as the book by S. Arctander. Perfume and Flavor Chemicals. 1969. Montclair. New Jersey. USA, or its more recent versions, or in other works of similar nature.
- the perfume composition according to the invention can also comprise other adjuvants such as antioxidants, chelating agents, or propellants, the skilled person being able to choose them depending on the desired final application or the type of packaging used for the composition of the invention.
- the perfuming composition comprises a fatty alcohol as mentioned above in admixture with a natural oil (for example olive or sunflower oil).
- a natural oil for example olive or sunflower oil.
- the proportions in which the compounds according to the invention can be incorporated into the various products mentioned above vary over a wide range of values. These values depend on the role played by fatty alcohols in the composition, namely a role of single solvent or co-solvent; they also depend on the proportion of perfuming ingredient to be dissolved, that is to say indirectly on the nature of the perfuming composition and on the desired olfactory effect.
- the fatty alcohols mentioned in Table I were prepared by reduction of vegetable and animal oils by injecting PMHS (2 equivalents per ester function) on the substrate containing the metal catalyst, in particular zinc (0.5-2% mol ) dissolved in toluene, isopropyl ether or methyl tertioamyl ether.
- the polysilylether formed was hydrolyzed on an aqueous potassium solution (1.2 eq KOH / mol of PMHS). After decantation, the organic solution was evaporated to recover the solvent, and the residue distilled under vacuum to give the alcohol in practically pure form with chemical yields generally exceeding 90%.
- Ci8 1 (9Z) -octadecen-l -ol (oleyl alcohol)
- C 12 1 -dodecanol (lauric alcohol)
- C ⁇ 8 2 (9Z, 12Z) -octadecadien-l- ol (linoleyl alcohol)
- C 14 1 -tetradecanol (myristic alcohol)
- Cig 3 (9Z, 12Z, 15Z) -octadecatrien-1-ol (indenyl alcohol)
- Ci 6 1-hexadecanol (cetyl alcohol)
- C20 1 (1 lZ) -eicosen-l-ol
- C is 1 -octadecanol (stearyl alcohol)
- C22 1 (13Z) -docosen-l-ol
- a perfume composition was prepared by mixing the following ingredients
- Isododecane 39,800 Soybean fatty alcohol '' 30,000 Tenox ® GT-2 2) 0.100 Irganox ® PS-800 3) 0.050 Diethyl citrate 4) 0.050 Perfume ⁇ 10,000 Isopentane 20,000
- perfume ingredients can be used, depending on the desired odor effect.
- the natural soy alcohol constitutes with isodecane the solvent of this perfume composition with a jasmine-like odor which confers, when it is applied to the skin, a feel that is both soft and non-greasy, while perfuming it.
- a fragrance composition was prepared by mixing the following ingredients:
- the soy alcohol plays the role of co-solvent. It perfectly solubilizes the perfume used and makes the composition very pleasant to apply to the skin, which it softens without lubricating it.
- a perfume composition was prepared by mixing the following ingredients
- the perfume used is of the same composition as that described in Example 2. Natural olive alcohol replaces part of the ethanol at 96 ° in this composition. While retaining the properties of natural olive oil, it dissolves the scent used in high concentration. We thus obtained a perfume which makes the skin soft and pleasant to the touch.
- a fragrance composition was prepared by mixing the following ingredients:
- Natural sesame alcohol is used as a co-solvent with ethanol. It reduces the proportion of the latter in the composition and gives it the characteristics of natural oil so that the application to the skin makes it very soft to the touch.
- Example 6 Natural sesame alcohol is used as a co-solvent with ethanol. It reduces the proportion of the latter in the composition and gives it the characteristics of natural oil so that the application to the skin makes it very soft to the touch.
- a perfuming composition for massage oil was prepared by mixing the following ingredients:
- Trilaureth-4-phosphate origin: Clariant
- MIPA-laureth sulfate and laureth 4 and cocamide DEA origin: Zschimmer & Schwarz
- the perfume used is of the same composition as that described in Example 2.
- the fatty alcohol of sunflower perfectly solubilizes all the ingredients of this composition.
- the oil obtained easily penetrates when applied to the skin. The latter, after application of said oil remains very soft to the touch while being very little greasy.
- a mixture was prepared comprising 90% of the massage oil, the composition of which is described above and 10% of isopentane.
- a "post-foam" product which is applied to damp skin like a cream. By rubbing on the skin, the product develops a foam that just needs to be rinsed off. After application, the skin is soft and clean without being oily.
- a perfuming composition was prepared for application as a deodorant stick by mixing the following ingredients:
- Cyclomethicone origin: Dow Corning
- Stearyl alcohol origin: Henkel
- the resulting deodorant is very gentle on the skin and not very aggressive. Its texture that is both soft and non-oily provides a very pleasant effect on the skin.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Emergency Medicine (AREA)
- Fats And Perfumes (AREA)
- Cosmetics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001536111A JP2003513900A (ja) | 1999-11-10 | 2000-10-19 | 香料組成物中での脂肪族アルコールの使用 |
| EP00966370A EP1229893A1 (fr) | 1999-11-10 | 2000-10-19 | Utilisation d'un alcool gras dans une composition parfumante |
| US10/115,485 US6806250B2 (en) | 1999-11-10 | 2002-04-02 | Use of fatty alcohol in a perfume composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH205899 | 1999-11-10 | ||
| CH2058/99 | 1999-11-10 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/115,485 Continuation US6806250B2 (en) | 1999-11-10 | 2002-04-02 | Use of fatty alcohol in a perfume composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001034110A1 true WO2001034110A1 (fr) | 2001-05-17 |
Family
ID=4224936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2000/001499 Ceased WO2001034110A1 (fr) | 1999-11-10 | 2000-10-19 | Utilisation d'un alcool gras dans une composition parfumante |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6806250B2 (fr) |
| EP (1) | EP1229893A1 (fr) |
| JP (1) | JP2003513900A (fr) |
| WO (1) | WO2001034110A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011154926A1 (fr) * | 2010-06-10 | 2011-12-15 | Firmenich Sa | Compositions de parfums et leurs utilisations |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7517842B2 (en) * | 2006-11-10 | 2009-04-14 | Gojo Industries, Inc. | Antimicrobial wash formulations including amidoamine-based cationic surfactants |
| CN103804131A (zh) * | 2012-11-07 | 2014-05-21 | 中国林业科学研究院资源昆虫研究所 | 甘蔗蜡压力还原法制备高级烷醇的方法 |
| CN103804135A (zh) * | 2012-11-07 | 2014-05-21 | 中国林业科学研究院资源昆虫研究所 | 向日葵蜡常压还原法制备高级烷醇的方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151114A (ja) * | 1984-12-26 | 1986-07-09 | Lion Corp | 香料含有組成物 |
| US5190915A (en) * | 1990-07-11 | 1993-03-02 | Unilever Patent Holdings B.V. | Perfumed structured emulsion in personal products |
| US5324444A (en) * | 1991-12-20 | 1994-06-28 | The Procter & Gamble Company | Process for preparing a perfume capsule composition |
| US5420104A (en) * | 1992-06-16 | 1995-05-30 | Firmenich S.A. | Perfumed composition |
| EP0701813A2 (fr) * | 1994-09-14 | 1996-03-20 | Unilever Plc | Emulsion d'huile dans l'eau contenant un parfum |
| US5831133A (en) * | 1994-10-19 | 1998-11-03 | Firmenich Sa | Process for the preparation of alcohols |
| WO1999012877A1 (fr) * | 1997-09-09 | 1999-03-18 | Firmenich S.A. | Reduction enantioselective de cetones avec un systeme agent silanique/compose metallique/ligand chiral |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888995A (en) * | 1968-07-19 | 1975-06-10 | Syntex Corp | Fatty alcohol-propylene glycol vehicle |
| BR9405620A (pt) * | 1993-10-01 | 1999-09-08 | Scherer Corp R P | Cápsula de gelatina contendo fragrncia, e, processo para sua preparação |
| FR2734496B1 (fr) | 1995-05-24 | 1997-07-04 | Seppic Sa | Composition emulsionnante a base d'alkylpolyglycosides, et ses utilisations |
| US5948416A (en) | 1995-06-29 | 1999-09-07 | The Procter & Gamble Company | Stable topical compositions |
| US6444212B1 (en) * | 1998-03-26 | 2002-09-03 | L'oreal | Moisturizing and long-wearing make-up composition |
| US6368607B1 (en) * | 1998-07-24 | 2002-04-09 | Isp Investments Inc. | Product-structurant composition for personal care formulations |
-
2000
- 2000-10-19 EP EP00966370A patent/EP1229893A1/fr not_active Withdrawn
- 2000-10-19 JP JP2001536111A patent/JP2003513900A/ja active Pending
- 2000-10-19 WO PCT/IB2000/001499 patent/WO2001034110A1/fr not_active Ceased
-
2002
- 2002-04-02 US US10/115,485 patent/US6806250B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151114A (ja) * | 1984-12-26 | 1986-07-09 | Lion Corp | 香料含有組成物 |
| US5190915A (en) * | 1990-07-11 | 1993-03-02 | Unilever Patent Holdings B.V. | Perfumed structured emulsion in personal products |
| US5324444A (en) * | 1991-12-20 | 1994-06-28 | The Procter & Gamble Company | Process for preparing a perfume capsule composition |
| US5420104A (en) * | 1992-06-16 | 1995-05-30 | Firmenich S.A. | Perfumed composition |
| EP0701813A2 (fr) * | 1994-09-14 | 1996-03-20 | Unilever Plc | Emulsion d'huile dans l'eau contenant un parfum |
| US5831133A (en) * | 1994-10-19 | 1998-11-03 | Firmenich Sa | Process for the preparation of alcohols |
| WO1999012877A1 (fr) * | 1997-09-09 | 1999-03-18 | Firmenich S.A. | Reduction enantioselective de cetones avec un systeme agent silanique/compose metallique/ligand chiral |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 010, no. 350 (C - 387) 26 November 1986 (1986-11-26) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011154926A1 (fr) * | 2010-06-10 | 2011-12-15 | Firmenich Sa | Compositions de parfums et leurs utilisations |
| CN102933193A (zh) * | 2010-06-10 | 2013-02-13 | 弗门尼舍有限公司 | 加香组合物及其应用 |
| US8822404B2 (en) | 2010-06-10 | 2014-09-02 | Firmenich Sa | Perfuming compositions and uses thereof |
| CN102933193B (zh) * | 2010-06-10 | 2015-06-17 | 弗门尼舍有限公司 | 加香组合物及其应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| US6806250B2 (en) | 2004-10-19 |
| US20020183236A1 (en) | 2002-12-05 |
| EP1229893A1 (fr) | 2002-08-14 |
| JP2003513900A (ja) | 2003-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1339087C (fr) | Composition parfumante, a phase aqueuse continue, ayant une forte concentration en parfum | |
| CA1310585C (fr) | APPLICATION COSMETIQUE DE POLYSILOXANES A FONCTION .beta.-CETOESTER ET COMPOSITIONS MISE EN OEUVRE | |
| EP0522899B1 (fr) | Compositions cosmétiques se présentant sous forme d'émulsions aqueuses d'organopolysiloxanes | |
| CA1110970A (fr) | Emulsions du type "eau-dans-l'huile" ou "huile-dans- l'eau" et produits cosmetiques obtenus a l'aide de ces emulsions | |
| EP1412462B1 (fr) | Substitut de lanoline son procede d obtention et ses applications | |
| EP3630057B1 (fr) | Parfums sous forme de microémulsions aqueuses | |
| EP1043015A2 (fr) | Composition parfumante liquide homogène à base de silicones volatiles | |
| EP1810664B1 (fr) | Composition huileuse colorée | |
| WO2001034110A1 (fr) | Utilisation d'un alcool gras dans une composition parfumante | |
| EP1068256B1 (fr) | Procede de preparation de silicones a fonction(s) arylalkyle(s) par hydrosilylation | |
| EP1003472B1 (fr) | Composition parfumante utilisant des organopolysiloxanes | |
| FR2897533A1 (fr) | Agent oxydant pour le traitement des cheveux | |
| EP0809485B1 (fr) | Utilisation du 4-tert-butyl-1-cyclohexanol en tant qu'antioxydant | |
| EP1206240B1 (fr) | Composition non ethanolique comprenant un hydrofluoroether | |
| FR3133308A1 (fr) | Complexe parfumant laiteux, visqueux et collant, prêt à l'emploi et composition parfumée associée. | |
| EP1032554B1 (fr) | Lactates de citronellyle et/ou de dihydrocitronellyle, leur preparation et leur utilisation | |
| FR2786408A1 (fr) | Emulsions transparentes fluides et leur procede de preparation | |
| EP0474946A1 (fr) | Procédé de fabrication d'esters d'acides gras, produits isolés correspondants et compositions à usage humain ou vétérinaire les contenant | |
| EP4076345A1 (fr) | Parfum semi-solide naturel | |
| FR2736639A1 (fr) | Nouveaux composes hydrofluorocarbones a fonction thioester, procede de preparation, utilisations et compositions les comprenant | |
| FR3113462A1 (fr) | Procede de preparation de beurres | |
| WO2023067179A1 (fr) | Complexe parfumant, composition parfumante et composition aqueuse parfumée d'origine naturelle | |
| CA2305942A1 (fr) | Composition renfermant au moins un compose bicyclique aromatique et au moins un 2-alkyl alcan-1-ol ou un ester, et ses utilisations | |
| WO1999018925A1 (fr) | Composition parfumante et utilisation d'organopolysiloxanes a fonction aryle comme agents solubilisants et emollients dans les compositions parfumantes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2000966370 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 10115485 Country of ref document: US |
|
| ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2001 536111 Kind code of ref document: A Format of ref document f/p: F |
|
| WWP | Wipo information: published in national office |
Ref document number: 2000966370 Country of ref document: EP |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 2000966370 Country of ref document: EP |