Hydroxylamines derived from hindered amines
US4691015A · kind A · utility
59Cited by
18References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1985 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Mar 21, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3462
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Hydroxylamines derived from hindered amines 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.