Light stabilized polymer compositions
US3935163A · kind A · utility
12Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | May 28, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/13
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Organic polymeric materials normally subject to oxidative and ultraviolet light deterioration are stabilized by incorporating therein a nickel bis-3,5-dialkyl-4-hydroxybenzoate, an ultraviolet light absorber such as a benzophenone or a benzotriazole, a light stabilizer such as a p-hydroxybenzoate ester and optionally a primary phenolic antioxidant with or without a secondary sulfur containing antioxidant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.