Benzene sulfonate quaternary ammonium salts of organic sunscreen carboxylic acids
US4680144A · kind A · utility
11Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1986 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Oct 29, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/466
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions of benzene sulfonate quaternary ammonium salts of organic sunscreen carboxylic acids have substantially for human hair and protect it from the undesirable effects of sunlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.