Glass fiber-reinforced thermoplastic polycarbonate molding compositions with improved tough-elastic properties
US4048133A · kind A · utility
5Cited by
7References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 6, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Jul 6, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to glass fiber reinforced thermoplastic polycarbonate molding compositions whose toughness and elastic properties have been improved by the incorporation of 1 to 5 wt.% of poly-(2,6-dialkyl-1,4-phenyleneoxide). These compositions contain between 10 and 30 wt.% glass fibers and display improved properties even after extended times at high humidity. The polyphenylene oxides preferably have M.sub.w between 2,000 and 100,000, most preferably 20,000 and 60,000. A particularly suitable additive is poly-(2,6-dimethyl-1,4-phenylene oxide).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.