US3946749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair cosmetic compositions based on grafted and crosslinked copolymers
Assignee: L'Oréal SA
•
Filing: 1973-06-19
•
Granted: 1976-03-30
•
Expires: 1993-06-19
Abstract
Abstract Cationic graft and cross-linked copolymers are provided which have excellent properties for use in cosmetic compositions, in particular wavesetting lotions. These copolymers are derived by copolymerizing:
Inventors
- 👤 Christos Papantoniou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:14
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/91; A61Q; A61Q5/00; A61Q5/04; C; C08; C08F; C08F283/00; C08F283/06; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02; Y10S526/00; Y10S526/936
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
193 words
A hair cosmetic composition comprising in a solvent selected from the group consisting of water, an aliphatic alcohol having 1 to 6 carbon atoms and an aqueous-alcoholic solution of said alcohol, 0.4 to 5% by weight of a graft and cross linked copolymer constituted by: a. 5 to 85% by weight of at least one monomer selected from the group consisting of: vinyl acetate, vinyl stearate, vinyl laurate, vinyl propionate, allyl stearate, allyl laurate, diethyl maleate, allyl acetate, methyl methacrylate, cetyl vinyl ether, stearyl vinyl ether and hexene-1; b. 3 to 80% by weight of a monomer selected from the group consisting of: crotonic acid, allyloxyacetic acid, vinylacetic acid, acrylic acid, methacrylic acid and N-vinylpyrrolidone; c. 2 to 50% by weight of polyethylene glycol having a molecular weight between 300 and 30,000; and d. 0.01 to 8% by weight, based on the total weight of (a) + (b) + (c) of a cross-linking agent selected from the group consisting of: ethylene glycol dimethacrylate, diallyl O-phthalate, diallyl M-phthalate, diallyl P-phthalate, tetraallyloxyethane, and a polyallylsucrose having 2 to 5 allyl groups per mol of sucrose, said copolymer having a molecular weight between 10,000 and 1,000,000.
Claim 2
Dependent Claim
193 words
A hair cosmetic composition comprising in a solvent selected from the group consisting of water, an aliphatic alcohol having 1 to 6 carbon atoms and an aqueous-alcoholic solution of said alcohol, 0.4 to 5% by weight of a graft and cross linked copolymer constituted by: a. 5 to 85% by weight of at least one monomer selected from the group consisting of: vinyl acetate, vinyl stearate, vinyl laurate, vinyl propionate, allyl stearate, allyl laurate, diethyl maleate, allyl acetate, methyl methacrylate, cetyl vinyl ether, stearyl vinyl ether and hexene-1; b. 3 to 80% by weight of a monomer selected from the group consisting of: crotonic acid, allyloxyacetic acid, vinylacetic acid, acrylic acid, methacrylic acid and N-vinylpyrrolidone; c. 2 to 50% by weight of polyethylene glycol having a molecular weight between 300 and 30,000; and d. 0.01 to 8% by weight, based on the total weight of (a) + (b) + (c) of a cross-linking agent selected from the group consisting of: ethylene glycol dimethacrylate, diallyl O-phthalate, diallyl M-phthalate, diallyl P-phthalate, tetraallyloxyethane, and a polyallylsucrose having 2 to 5 allyl groups per mol of sucrose, said copolymer having a molecular weight between 10,000 and 1,000,000.
Claim 3
Dependent Claim
35 words
The composition according to claim 1 in which the copolymer contains free carboxyl groups which have been neutralized with an organic or inorganic base in an amount between 50 and 100% of the stoichiometric amount.
Claim 4
Dependent Claim
27 words
The composition according to claim 2 in which the base is selected from the group consisting of ammonia, monoethanolamine, diethanolamine, triethanolamine, an isopropanolamine, morpholine, 2-amino-2-methyl-1-propanol and 2-amino-2-methyl-1,3-propanediol.
Claim 5
Dependent Claim
22 words
The composition according to claim 1 in which the aqueous-alcoholic solution contains from 5 to 70% by weight of said aliphatic alcohol.
Claim 6
Dependent Claim
30 words
A method of setting hair which comprises applying to the hair an effective amount of the composition of claim 1, winding the hair on wavesetting rollers and drying the hair.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |