Silicone UV absorbers containing silane units
US5086127A · kind A · utility
14Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1990 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | Jan 30, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Organic silicon compounds comprising in the molecule thereof, a polysilane structural unit: -(R.sup.1 R.sup.2 Si).sub.n - and a structural unit: R.sup.3.sub.a SiO.sub.(4-a)/2 absorb UV in the range of 300-400 nm and are well soluble in organic solvent. These compounds are useful UV absorbers for cosmetic compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.