Novel benzothiophene derivatives as stabilizers for organic compounds
US3935231A · kind A · utility
5Cited by
6References
8Claims
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Key dates
| Filing date | Oct 11, 1973 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Oct 11, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/45
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns benzothiophene acyl (2) derivatives of the formula, ##SPC1## Wherein R.sub.1, R.sub.2 and R are substituents and n is an integer 1 or 2. The compounds are useful as u.v. stabilizers for, e.g. plastic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.