Silicone salicylate esters
US5883279A · kind A · utility
2Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1998 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Mar 16, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention discloses novel salicylate esters of silicone compounds which contain an ester linkage, and a silicone polymer. Compounds of the invention are made by reacting (a) a carboxy silicone, and (b) salicylic acid to form an ester. Compounds of the invention by virtue of (i) the silicone group, (ii) the ester group and (iii) the ultra violet absorbing group salicylic, the compounds are effective durable ultra violet absorbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.