Patent US4680596A successfully refreshed from Google Patents.
Patent US4070533A successfully refreshed from Google Patents.
US4070533A
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Terpolymer of (a) crotonic acid (b) vinyl acetate and (c) allyl or methallyl esters
Assignee: L'Oréal SA
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Filing: 1976-04-06
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Granted: 1978-01-24
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Expires: 1996-04-06
Abstract
Abstract Terpolymer of crotonic acid, vinyl acetate and an allyl or methallyl ester having the formula <IMAGE> wherein R' is hydrogen or CH3, R1 is a saturated hydrocarbon chain containing 1-6 carbon atoms and R2 is -CH3 or -CH(CH3)2, with the proviso that the sum of the number of carbon atoms in R1 + R2 is equal to or less than 7. The terpolymer is employed with a cosmetic carrier or vehicle to provide a cosmetic composition for the hair, such as a hair lacquer or hair setting lotion, generally in amounts of about 1-4 weight percent of the composition.
Inventors
- 👤 Christos Papantoniou
- 👤 Jean-Claude Grognet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:48
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/08; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8147; A61Q; A61Q5/00; A61Q5/06; C08F20/00; C08F20/62; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02; Y10S526/00; Y10S526/936
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
Terpolymer of a. crotonic acid, b. vinyl acetate and c. an allyl or methallyl ester of the formula ##STR3## wherein R' is selected from the group consisting of hydrogen and --CH 3 , R 1 is a saturated hydrocarbon chain, linear or branched, having 1-6 carbon atoms, and R 2 is selected from the group consisting of --CH 3 and --CH(CH 3 ) 2 , with the proviso that the sum of the number of carbon atoms in R 1 and R 2 is equal to or less than 7.
Claim 2
Dependent Claim
90 words
Terpolymer of a. crotonic acid, b. vinyl acetate and c. an allyl or methallyl ester of the formula ##STR3## wherein R' is selected from the group consisting of hydrogen and --CH 3 , R 1 is a saturated hydrocarbon chain, linear or branched, having 1-6 carbon atoms, and R 2 is selected from the group consisting of --CH 3 and --CH(CH 3 ) 2 , with the proviso that the sum of the number of carbon atoms in R 1 and R 2 is equal to or less than 7.
Claim 3
Dependent Claim
45 words
The terpolymer of claim 1 wherein said crotonic acid is present in an amount of 6-15 weight percent, said vinyl acetate is present in an amount of 65-86 weight percent and said allyl or methallyl ester is present in an amount of 8-20 weight percent.
Claim 4
Dependent Claim
45 words
The terpolymer of claim 1 wherein said crotonic acid is present in an amount of 7-12 weight percent, said vinyl acetate is present in an amount of 71-83 weight percent and said allyl or methallyl ester is present in an amount of 10-17 weight percent.
Claim 5
Dependent Claim
49 words
The terpolymer of claim 1 wherein said allyl or methallyl ester is selected from the group consisting of allyl dimethyl propanoate, methallyl dimethyl propanoate, allyl 2,2-dimethyl pentanoate, methallyl 2,2dimethyl pentanoate, allyl 2,2-dimethyl hexanoate, methallyl 2,2-dimethyl hexanoate, allyl 2,2-dimethyl octanoate, methallyl 2,2-dimethyl octanoate, allyl 2-isopropyl-2,3-dimethyl butyrate and methallyl 2-isopropyl-2,3-dimethyl butyrate.
Claim 6
Dependent Claim
15 words
The terpolymer of claim 1 having a molecular weight ranging between about 15,000 to 30,000.
Claim 7
Dependent Claim
15 words
The terpolymer of claim 1 characterized by the fact that it is a homogeneous terpolymer.
Claim 8
Dependent Claim
23 words
The terpolymer of claim 1 neutralized with a base selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, morpholine, 2-amino-2-methyl-1-propanol and 2-amino-2-methyl-1,3-propanediol.
Claim 9
Dependent Claim
111 words
A process for preparing a terpolymer comprising copolymerizing in an aqueous suspension in the presence of an effective amount of a polymerization catalyst, monomers consisting of crotonic acid, vinyl acetate and an allyl or methallyl ester having the formula ##STR4## wherein R' is selected from the group consisting of hydrogen and --CH 3 , R 1 is a saturated hydrocarbon chain, linear or branched, having 1-6 carbon atoms and R 2 is selected from the group consisting of --CH 3 and --CH(CH 3 ) 2 , with the proviso that the sum of the number of carbon atoms in R 1 and R 2 is equal to or less than 7.
Claim 10
Dependent Claim
111 words
A process for preparing a terpolymer comprising copolymerizing in an aqueous suspension in the presence of an effective amount of a polymerization catalyst, monomers consisting of crotonic acid, vinyl acetate and an allyl or methallyl ester having the formula ##STR4## wherein R' is selected from the group consisting of hydrogen and --CH 3 , R 1 is a saturated hydrocarbon chain, linear or branched, having 1-6 carbon atoms and R 2 is selected from the group consisting of --CH 3 and --CH(CH 3 ) 2 , with the proviso that the sum of the number of carbon atoms in R 1 and R 2 is equal to or less than 7.
Claim 11
Dependent Claim
29 words
The process of claim 8 wherein said polymerization catalyst is present in an amount ranging from about 0.5-6 percent by weight relative to the total weight of said monomers.
References Cited (Backward Citations)
US3231534A
Cited
US3455887A
Cited
US3579629A
Cited
US3716633A
Cited
US3484420A
Cited
US3810977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |