EP0518772B1
Expired / Lapsed
EP
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Sunscreening cosmetic composition containing a blend of partly or completely neutralised benzene 1,4-di(3-methylidene-10-camphosulfonic acid) and metallic oxids nanopigments
Assignee: L'Oréal SA
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Filing: 1992-06-12
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Granted: 1994-11-02
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Expires: 2012-06-12
Abstract
Abstract The invention relates to a sunscreening cosmetic composition comprising, in the form of a mixture, 0.5 to 10 % by weight of nanopigments of metal oxides chosen from titanium, zinc, cerium, of zirconium oxides or mixtures thereof, with a mean diameter of less than 100 nm, and 0.1 to 10 % by weight of 1,4-benzene[di(3-methyliden-10-camphosulphonic)] acid or one of its alkali metal, ammonium, amine, alkanolamine, Ca, Zn, Mg, Ba, Al or Zr salts, in a cosmetically acceptable carrier. This composition is useful as composition for protecting the human epidermis or the hair from UV rays or as make up product.
Inventors
- 👤 Martine Eteve
- 👤 Isabelle Hansenne
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 11:06
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/02; A61K8/0241; A61K8/18; A61K8/19; A61K8/27; A61K8/28; A61K8/29; A61K8/30; A61K8/46; A61K8/466; B; B82; B82Y; B82Y5/00; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/413; A61K2800/42; A61K2800/43; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/06; A61Q1/08; A61Q1/10; A61Q5/00; A61Q5/02; A61Q5/04; A61Q5/06; A61Q5/08
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
104 words
A screening cosmetic composition comprising, in a cosmetically acceptable carrier, at least one metal oxide nanopigment chosen from titanium, zinc, cerium or zirconium oxide or mixtures thereof, with a mean diameter of less than 100 nm, mixed with partially or completely neutralized 1,4-benzenedi(3-methylidene-10-camphosulfonic) acid of formula in which A denotes a hydrogen atom, an alkali metal or an NH(R)₃⁺ group, the R radicals being identical or different and denoting a hydrogen atom or a C₁-C₄ alkyl or hydroxyalkyl radical or an M n+ /n group where M n+ is a polyvalent metal cation in which n is equal to 2 or 3 or 4.
Claim 2
Dependent Claim
23 words
The cosmetic composition as claimed in claim 1, wherein the metal oxide nanopigments have a mean diameter of between 5 and 50 nm.
Claim 3
Dependent Claim
17 words
The cosmetic composition as claimed in claim 1 or 2, wherein the metal oxide is titanium oxide.
Claim 4
Dependent Claim
28 words
The cosmetic composition as claimed in any one of claims 1 to 3, wherein in the formula (I), M n+ denotes Ca²⁺, Zn²⁺, Mg²⁺ Ba²⁺, Al³⁺ or Zr⁴⁺.
Claim 5
Dependent Claim
32 words
The cosmetic composition as claimed in any one of claims 1 to 4, which comprises in a mixture, a titanium oxide nanopigment and the aluminum salt of the compound of formula (I).
Claim 6
Dependent Claim
21 words
The cosmetic composition as claimed in any one of claims 1 to 5, wherein the metal oxide nanopigments are uncoated pigments.
Claim 7
Dependent Claim
74 words
The cosmetic composition as claimed in any one of claims 1 to 6, wherein the metal oxide nanopigments are coated pigments having undergone one or more surface treatments of a chemical, electronic, mechanicochemical or mechanical nature with compounds chosen from amino acids, beeswax, fatty acids, fatty alcohols, anionic surface-active agents, lecithins, sodium, potassium, zinc, iron or aluminum salts of fatty acids, sodium hexametaphosphate, metal alkoxides, polyethylene, silicones, proteins, alkanolamines, silicon oxides and metal oxides.
Claim 8
Dependent Claim
69 words
The cosmetic composition as claimed in claim 7, wherein the coated metal oxide nanopigments are titanium oxide pigments coated with silica, silica and alumina, silica and iron oxide, alumina and silicone, alumina, alumina and aluminum stearate, alumina and aluminum laurate, iron oxide and iron stearate, zinc oxide and zinc stearate, silica and alumina and silicone, silica and alumina and aluminum stearate and silicone, triethanolamine, stearic acid or sodium hexametaphosphate.
Claim 9
Dependent Claim
38 words
The cosmetic composition as claimed in claim 7, wherein the coated metal oxide nanopigments are mixtures of silica-coated titanium dioxide and cerium dioxide or alumina, silica and silicone-coated or alumina, silica and glycerin-coated titanium dioxide and zinc dioxide.
Claim 10
Dependent Claim
41 words
The cosmetic composition as claimed in any one of claims 1 to 9, which contains 0.5 to 10% by weight, preferably 1 to 7% by weight, relative to the total weight of the composition, of at least one metal oxide nanopigment.
Claim 11
Dependent Claim
51 words
The cosmetic composition as claimed in any one of claims 1 to 10, which contains 0.1 to 10% by weight, preferably 0.25% to 5% by weight, calculated on the basis of the acid relative to the total weight of the composition, of partially or completely neutralized 1,4-benzenedi(3-methylidene-10-camphosulfonic) acid of formula (I).
Claim 12
Dependent Claim
36 words
The cosmetic composition as claimed in any one of claims 1 to 11, wherein the partially or completely neutralized 1,4-benzenedi(3-methylidene-10-camphosulfonic) acid/metal oxide nanopigment weight ratio is between 0.05 and 5, and preferably between 0.07 and 3.
Claim 13
Dependent Claim
35 words
The cosmetic composition as claimed in any one of claims 1 to 12, which is provided in the form of a lotion, thickened lotion, gel, vesicular dispersion, cream, milk, powder, solid stick, foam or spray.
Claim 14
Dependent Claim
69 words
The cosmetic composition as claimed in claim 13, which contains, in addition, cosmetic adjuvants chosen from fatty substances, organic solvents, silicones, thickeners, demulcents, UV-A, UV-B or broad-band sun-screen agents, antifoaming agents, moisturizing agents, perfumes, preservatives, surface-active agents, fillers, sequestrants, anionic, cationic, nonionic or amphoteric polymers or mixtures thereof, propellants, alkalizing or acidifying agents, colorants and metal oxide pigments with a particle size of between 100 nm and 20,000 nm.
Claim 15
Dependent Claim
33 words
The cosmetic composition as claimed in any one of claims 1 to 14, which contains 3-(4-methylbenzylidene)camphor and 4-tert-butyl-4'-methoxydibenzoylmethane, a titanium oxide nanopigment and 1,4-benzenedi(3-methylidene-10-camphosulfonic) acid which is partially or completely neutralized with triethanolamine.
Claim 16
Dependent Claim
86 words
The cosmetic composition as claimed in any one of claims 1 to 15, consisting of a composition for protecting the human epidermis against ultraviolet rays or an anti-sun composition, or for the prevention of photodermatoses, which is provided in the form of a suspension or dispersion in solvents or fatty substances, in the form of an emulsion, in the form of a vesicular dispersion, in the form of an ointment, in the form of a gel, in the form of a solid stick or aerosol foam.
Claim 17
Dependent Claim
92 words
The cosmetic composition as claimed in any one of claims 1 to 14 useful for protecting the hair against ultraviolet rays, which is provided in the form of a rinse-off shampoo, lotion, gel or composition to be applied before or after shampooing, before or after dyeing or bleaching, before, during or after permanent waving or hair straightening, in the form of hair styling or treatment lotion or gel, a lotion or gel for blowdrying or hair setting, hair lacquer, composition for permanent waving or hair straightening, for dyeing or bleaching the hair.
Claim 18
Dependent Claim
59 words
The cosmetic composition as claimed in any one of claims 1 to 14, consisting of a make-up for the eyelashes, the eyebrows, the skin or the hair, which is provided in the form of a cream for treating the epidermis, foundation, lipstick, eyeshadow, blusher, eyeliner, mascara, coloring gel, and is provided in anhydrous or aqueous solid or pasty form.
Claim 19
Dependent Claim
40 words
A process for protecting the human epidermis and the hair against ultraviolet radiation which consists in applying to the skin or the hair, an effective amount of a cosmetic composition as claimed in any one of claims 1 to 18.
Claim 20
Dependent Claim
21 words
Use of the cosmetic composition as claimed in any one of claims 1 to 16 or preventing the development of photodermatoses.
Claim 21
Dependent Claim
54 words
Use of partially or completely neutralized 1,4-benzenedi(3-methylidene-10-camphosulfonic) acid for reducing or inhibiting the light-induced reaction of metal oxide nanopigments exposed to light, these metal oxides being chosen from titanium, zinc, cerium or zirconium oxides or mixtures thereof with a mean diameter of less than 100 nm, and preferably of between 5 and 50 nm.
References Cited (Backward Citations)
No citation records indexed.
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