Compositions stabilized with bicyclic hindered amines
US3991012A · kind A · utility
11Cited by
4References
10Claims
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Key dates
| Filing date | Jan 29, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Jan 29, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2418
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds having the formula ##SPC1## Wherein R is alkyl, alkylene, phenyl, phenylene or alkyl substituted phenyl or phenylene, n is one or two and X is hydrogen, hydroxyl or oxygen, are good light stabilizers. These compounds are prepared, for example, from 1,3,3-trimethyl-3-azabicyclo[2.2.2]octane-5-ol and stearic acid to give 5-stearoyloxy-1,3,3-trimethyl-2-azabicyclo[2.2.2]octane which is converted by standard techniques to the corresponding 2-oxyl and 2-ol compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.