Ester substituted benzylhydroxylamines and stabilized polyolefin compositions
US4668727A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Nov 21, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Ester substituted benzylhydroxylamine derivatives are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the alkylated hydroxybenzoate light stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids and the thiosynergists, against degradation upon high temperature extrusion, exposure to the combustion products of natural gas, gamma irradiation or upon storage for extended periods. These ester substituted benzylhydroxylamine derivatives exhibit resistance to loss or extraction during processing and in end-use applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.