Quaternized copolymers suitable as active ingredients in cosmetic formulations, such as hair styling compositions
US5869032A · kind A · utility
8Cited by
2References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 27, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Mar 27, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Quaternized copolymers suitable as active ingredients in hair styling compositions are obtainable from N-vinylimidazoles, N-vinylcaprolactam, N-vinylpyrrolidone and, if required, further monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.