Certain [(2,2,6,6-tetramethyl-4-piperidyl)amino]-1,3,2-dioxaphosphorinanes useful as stabilizers for protecting resins
US4661594A · kind A · utility
6Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1985 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Feb 19, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/657154
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula I or II, ##STR1## wherein m is 1 or 2, A is branched or unbranched 1,2- or 1,3-alkylene, or o-phenylene, E is a group III or IIIa, R is hydrogen or methyl, R.sup.1 and R.sup.3 are hydrogen, alkyl, alkenyl, aralkyl, alkanoyl, alkenoyl, benzoyl or cyanomethyl, R.sup.2 is a radical of valency m and R.sup.4 is a monovalent radical, are effective processing stabilizers for polymers, in particular for polyolefins, and additionally have a stabilizing action against damage by light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.