Stabilization of polycarbonate/ABS blends with mixtures of hindered amines and UV absorbers
US5990208A · kind A · utility
2Cited by
22References
7Claims
0Family size
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Key dates
| Filing date | Dec 15, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/34926
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of polycarbonate with ABS resins are effectively stabilized by a combination of selected non-basic hindered amines containing the 3,3,5,5-tetramethyl-2-oxo-1-piperazinyl moiety and UV absorbers such as benzotriazoles, s-triazines and benzophenones, particularly the benzotriazoles and s-triazines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.