Polymer compositions containing piperidine derivatives as stabilizers
US4066615A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1975 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | Apr 11, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3435
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A synthetic polymer composition stabilized against photo- and thermal-deterioration comprising a stabilizing amount of a compound having the formula ##STR1## wherein R' represents an alkyl, an acyl, an alkoxycarbonyl, an amino or nitroso group; PA1 X represents oxygen or sulfur; PA1 Y represents oxygen, sulfur or a group of the formula = N - R" in which R" is hydrogen or alkyl; PA1 Z represents oxygen or a group of the formula >N - R'" in which R'" is hydrogen or alkyl; PA1 N is an integer of 1 to 4; and PA1 R represents, when n is 1, alkyl, aryl, cycloalkyl, alkoxycarbonyl, substituted phosphino or substituted phosphinyl, when n is 2, alkylene, alkenylene, arylene, aralkylene; alkylenediphenylene, bis-(carboxycarbonyl) alkylene, alkylene-bis-(oxycarbonylalkyl), dialkylene ether or diphenylene ether, when n is 3, alkanetriyl, tris-(alkoxycarbonyl)alkanetriyl, alkanetriyl-tris-(oxycarbonylalkyl) or a group of the formula ##STR2## in which p is an integer of 1 through 8 inclusive, and, when n is 4, alkanetetrayl,tetrakis-(alkoxycarbonyl) alkanetetrayl or alkanetetrayl-tetrakis-(oxycarbonyl-alkyl). An example of a compound used as stabilizer is 1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9-pent…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.