5-aralkyl substituted 2H-benzotriazoles and stabilized compositions
US4760148A · kind A · utility
18Cited by
9References
21Claims
0Family size
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Key dates
| Filing date | Sep 3, 1985 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Sep 3, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3475
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
5-alpha-Cumyl-2-(2-hydroxy-3,5-di-tert-butylphenyl)-2H-benzotriazole and related 2H-benzotriazoles substituted on the benzo ring by at least one aralkyl group such as benzyl, alpha-methylbenzyl or alpha-cumyl exhibit outstanding efficacy in protecting organic substrates from light-induced deterioration as well as good resistance to loss by volatilization or exudation during the high temperature processing of stabilized compositions. The above-named compounds are surprisingly soluble in common organic solvents, and exhibit very high extinction coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.