Synergistic combinations of nano-scaled fillers and hindered amine light stabilizers
US7084197B2 · kind B2 · utility
12Cited by
20References
8Claims
0Family size
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Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Jun 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/011
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer compositions comprising a polymeric substrate and an effective stabilizing amount of a synergistic mixture of a nano-scaled filler and at least one additive selected from the group consisting of the hindered amine light stabilizers are effectively stabilized against the deleterious effects of oxidative, thermal or light-induced degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.