Patent US5879718A successfully refreshed from Google Patents.
US5879718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for topical use in the form of a surfactant-free oil-in-water emulsion containing a crosslinked and neutralized poly (2-acrylamido-2-methylpropanesulphonic acid) polymer
Assignee: L'Oréal SA
•
Filing: 1997-06-30
•
Granted: 1999-03-09
•
Expires: 2017-06-30
Abstract
Abstract The present application relates to a cosmetic and/or dermatological composition in the form of a surfactant-free oil-in-water emulsion containing at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer neutralized to at least 90%. The composition contains, distributed randomly: (a) from 90 to 99.9% by weight of units of formula (1) below: ##STR1## in which X + denotes a cation or a mixture of cations, it being possible for not more than 10 mol % of the cations X + to be protons H + ; and (b) from 0.01 to 10% by weight of crosslinking units originating from at least one monomer having at least two olefinic double bonds, the weight proportions being defined relative to the total weight of the polymer.
Inventors
- 👤 Laurence Sebillote-Arnaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:00
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/02; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/062; A61K8/18; A61K8/30; A61K8/33; A61K8/36; A61K8/365; A61K8/49; A61K8/4973; A61K8/72; A61K8/81; A61K8/8141; A61K8/8158; A61Q1/00; A61Q1/02; A61Q17/00; A61Q17/04; A61Q19/008; A61Q5/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
194 words
A cosmetic or dermatological composition in the form of an oil-in-water emulsion, wherein the composition contains at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer neutralized to at least 90% and wherein the composition contains no surfactant, and further wherein said at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer comprises, randomly distributed: a) from 90 to 99.9% by weight, relative to the weight of said at least one crosslinked polymer, of units of formula (1) below: ##STR4## in which X + denotes a cation or a mixture of cations, it being possible for not more than 10 mol % of the cations X + to be protons H + ; and (b) from 0.01 to 10% by weight, relative to the weight of said at least one crosslinked polymer, of crosslinking units originating from at least one monomer having at least two olefinic double bonds, wherein said at least one monomer is dipropylene glycol diallyl ether, polyglycol diallyl ether, triethylene glycol divinyl ether, hydroquinone diallyl ether, tetraethylene glycol diacrylate, triallylamine, trimethylolpropane diallyl ether, or a compound corresponding to formula (2) below: ##STR5## in which R 1 denotes a hydrogen atom or a C 1 -C 4 alkyl.
Claim 2
Dependent Claim
194 words
A cosmetic or dermatological composition in the form of an oil-in-water emulsion, wherein the composition contains at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer neutralized to at least 90% and wherein the composition contains no surfactant, and further wherein said at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer comprises, randomly distributed: a) from 90 to 99.9% by weight, relative to the weight of said at least one crosslinked polymer, of units of formula (1) below: ##STR4## in which X + denotes a cation or a mixture of cations, it being possible for not more than 10 mol % of the cations X + to be protons H + ; and (b) from 0.01 to 10% by weight, relative to the weight of said at least one crosslinked polymer, of crosslinking units originating from at least one monomer having at least two olefinic double bonds, wherein said at least one monomer is dipropylene glycol diallyl ether, polyglycol diallyl ether, triethylene glycol divinyl ether, hydroquinone diallyl ether, tetraethylene glycol diacrylate, triallylamine, trimethylolpropane diallyl ether, or a compound corresponding to formula (2) below: ##STR5## in which R 1 denotes a hydrogen atom or a C 1 -C 4 alkyl.
Claim 3
Dependent Claim
61 words
A composition according to claim 1, wherein said at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer neutralized to at least 90%, contains a number of units of formula (1) in an amount which is sufficiently large to obtain polymer particles whose hydrodynamic volume in aqueous solution has a radius ranging from 10 to 500 nm and whose distribution is homogeneous and unimodal.
Claim 4
Dependent Claim
37 words
A composition according to claim 1, wherein said at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer contains from 98 to 99.5% by weight of units of formula (1) and from 0.2 to 2% by weight of crosslinking units.
Claim 5
Dependent Claim
19 words
A composition according to claim 1, wherein, in formula (1), the cation X + is NH 4 + .
Claim 6
Dependent Claim
20 words
A composition according to claim 1, wherein said at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer is crosslinked with trimethylolpropane triacrylate.
Claim 7
Dependent Claim
47 words
A composition according to claim 1, wherein the polymers of formula (1), when present in an aqueous solution at a concentration of 2%, have a viscosity, measured with a Brookfield viscometer, rotor 4, speed 100 revolutions/minute at 25° C., of greater than or equal to 1000 cps.
Claim 8
Dependent Claim
29 words
A composition according to claim 6, wherein the polymers of formula (1) have a viscosity ranging from 5000 to 40,000 cps. and more particularly from 6500 to 35,000 cps.
Claim 9
Dependent Claim
21 words
A composition according to claim 7, wherein the polymers of formula (1) have a viscosity ranging from 6500 to 35,000 cps.
Claim 10
Dependent Claim
34 words
A composition according to claim 1, wherein said at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer is present in concentrations ranging from 0.01 to 20% by weight relative to the total weight of the composition.
Claim 11
Dependent Claim
34 words
A composition according to claim 9, wherein said at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer is present in concentrations ranging from 0.1 to 10% by weight relative to the total weight of the composition.
Claim 12
Dependent Claim
17 words
A composition according to claim 1, wherein said composition has a pH ranging from 1 to 13.
Claim 13
Dependent Claim
33 words
A composition according to claim 1, wherein said composition also contains at least one organic solvent selected from the group consisting of hydrophilic organic solvents, lipophilic organic solvents, amphiphilic solvents and mixtures thereof.
Claim 14
Dependent Claim
43 words
A composition according to claim 12, wherein said at least one organic solvent is a mono- or polyfunctional alcohol, an oxyethylenated polyethylene glycol, a propylene glycol ester, a sorbitol, a di-alkyl isosorbide, a glycol ether, a propylene glycol ether, or a fatty ester.
Claim 15
Dependent Claim
25 words
A composition according to claim 12, wherein said at least one organic solvent represents from 5% to 98% of the total weight of the composition.
Claim 16
Dependent Claim
16 words
A composition according to claim 1, wherein said composition additionally comprises at least one fatty phase.
Claim 17
Dependent Claim
24 words
A composition according to claim 15, wherein said at least one fatty phase represents up to 50% of the total weight of the composition.
Claim 18
Dependent Claim
63 words
A composition according to claim 1, wherein said composition additionally contains at least one additive selected from the group consisting of standard aqueous or lipophilic gelling agents or thickeners; hydrophilic or lipophilic active agents; preserving agents; antioxidants; fragrances; hydrating agents; emollients; sequestering agents; surfactants; polymers; basifying or acidifying agents; fillers; anti-free-radical agents; ceramides; sunscreens; insect repellants; slimming agents; dyestuffs; bactericides; and anti-dandruff agents.
Claim 19
Dependent Claim
38 words
A method for caring or for conditioning of the hairstyle or shaping the hair, said method comprising applying an effective amount of a composition according to claim 1 to the hair as a rinse-out or leave-in hair product.
Claim 20
Dependent Claim
41 words
A process for the non-therapeutic cosmetic treatment of skin, scalp, hair, eyelashes, eyebrows, nails or mucous membranes, wherein an effective amount of a composition according to claim 1 is applied on said skin, scalp, hair, eyelashes, eyebrows, nails or mucous membranes.
Claim 21
Dependent Claim
17 words
A process according to claim 19, wherein said composition is a make-up product, or an anti-sun product.
References Cited (Backward Citations)
US5114706A
Cited
US5679328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-08 | 2002-09-07 | 2003-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-08 | 2006-09-07 | 2007-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-08 | 2010-09-07 | 2011-03-09 | $7700.00 | Window Closed / Lapsed |