Hair preparations containing vinyl pyrrolidone copolymer
US4165367A · kind A · utility
171Cited by
10References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1977 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Jun 10, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/01
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Hair preparations containing a copolymer of about 95 to 45 mole percent of vinyl pyrrolidone and about 5 to 50 mole percent of diloweralkylaminoalkyl acrylate or methacrylate, and method of setting and conditioning hair therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.