Polycarbonate and acrylonitrile-butadiene-styrene polymeric blends with improved impact resistance
OwnerCoreen Y. Leeinventor
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Abstract
An acrylonitrile-butadiene-styrene (ABS) and polycarbonate (PC) blend having improved impact resistance (e.g., increased Izod impact) can be achieved by the addition of an ethylene/acrylate ester copolymer (e.g., ethylene/n-butyl acrylate copolymer, ethylene/methyl acrylate copolymer, or the like) or certain functionalized terpolymers thereof (e.g., ethylene/n-butyl acrylate/glycidyl terpolymer, ethylene/n-butyl acrylate/carbon monoxide terpolymer, and the like) to the ABS/PC alloy. The blends exhibiting improved impact resistance characteristics according to the instant invention are particularly useful in diverse applications requiring high impact strength.
Claims6
An acrylonitrile-butadiene-styrene and polycarbonate blend having improved impact resistance comprising for every one hundred parts by weight of acrylonitrile-butadiene-styrene and polycarbonate blend from one to twenty parts by weight ethylene/acrylate ester copolymer or functionalized terpolymer thereof.
A method of improving impact resistance of an acrylonitrile-butadiene-styrene and polycarbonate blend comprising the steps of:
- (i) adding for every one hundred parts by weight cumulative of acrylonitrile-butadiene-styrene and polycarbonate from one to twenty parts by weight ethylene/acrylate ester copolymer or functionalized terpolymers thereof;
- and
- (ii) mixing said acrylonitrile-butadiene-styrene, polycarbonate, and ethylene/acrylate ester copolymer or functionalized terpolymers thereof at elevated temperature and high shear rate.
Dependencies are inferred from the claim text.