Dihydropyridine derivatives
US4239893A · kind A · utility
13Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1979 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Nov 20, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The instant invention relates to compounds of the general formula: ##STR1## wherein R.sub.1 represents an alkyl, alkenyl, phenylalkyl radical, R.sub.2 represents a straight-chain alkyl, a straight- or branched-chain alkenyl or alkynyl radical, a .omega.-halogenoethyl radical, an optionally substituted benzyl radical, or a radical of the formula R.sub.4 --O--(CH.sub.2).sub.n --wherein n is 2, 3 or 4 and R.sub.4 represents a substituted alkyl radical. The compounds of the foregoing formula have been found to be useful as stabilizers for vinyl resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.