Glass fiber-reinforced thermoplastic polycarbonate molding compositions with improved tough-elastic properties
AssigneeBayer Aktiengesellschaft
InventorsSiegfried Adelmann, Dieter Margotte, Josef Merten
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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).
Claims5
Polycarbonate molding compositions based on high molecular thermoplastic aromatic polycarbonates containing 10-30% by weight of glass fibers (relative to the total weight of polycarbonate + glass fibers) and containing 1-5% by weight of poly-(256-dialkyl-1,4-phenylene oxide) (relative to the weight of glass fibers).
Dependencies are inferred from the claim text.