Process for preparing (2-oxo-3-bornylidene/methyl)-benzene sulfonic acids
US4250108A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1978 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Sep 29, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C309/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An anti-solar cosmetic composition contains as the anti-solar agent a compound of the formula ##STR1## wherein R represents a member selected from the group consisting of hydrogen, a halogen selected from the group consisting of chlorine and fluorine and alkyl containing 1-4 carbon atoms; R' and R" each independently represent a member selected from the group consisting of hydrogen and SO.sub.3 M wherein M represents a member selected from the group consisting of hydrogen, organic ammonium group and a metal, wherein at least one of R' and R" is other than hydrogen, and R" is a substituent at the para or meta position relative to the bornylidene ring. The anti-solar agent is present in amounts of 0.5-10 percent by weight of said composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.