Terpolymer of (a) crotonic acid (b) vinyl acetate and (c) allyl or methallyl esters
US4070533A · kind A · utility
32Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Apr 6, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/936
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Terpolymer of crotonic acid, vinyl acetate and an allyl or methallyl ester having the formula ##STR1## wherein R' is hydrogen or CH.sub.3, R.sub.1 is a saturated hydrocarbon chain containing 1-6 carbon atoms and R.sub.2 is --CH.sub.3 or --CH(CH.sub.3).sub.2, with the proviso that the sum of the number of carbon atoms in R.sub.1 + R.sub.2 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.