Unsaturated derivatives of 2,2,6,6-tetramethylpiperidine
US4942238A · kind A · utility
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4Claims
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Key dates
| Filing date | May 22, 1989 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3435
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of formula I ##STR1## wherein R is hydrogen, methyl or cyano, and R' is hydrogen, C.sub.1 -C.sub.8 alkyl or phenyl, are suitable for copolymerization with ethylenically unsaturated monomers to form crosslinked copolymers which are stabilized against light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.