N-Piperidyl tetrahydro-1,4-oxazin-2-one light stabilizers
US4547537A · kind A · utility
5Cited by
4References
19Claims
0Family size
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Key dates
| Filing date | Aug 2, 1984 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Aug 2, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/35
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula L-T, where L is an unsubstituted or substituted tetrahydro-1,4-oxazine-2-one group and T is a substituted 4-piperidinyl hindered amine moiety, are effective light stabilizers for polyolefins and other organic polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.