C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3037
C08L 69/00 (2006.01) C08L 51/04 (2006.01) C08L 51/06 (2006.01) C08L 53/00 (2006.01)
Patent
CA 1139036
ABSTRACT Blends of polycarbonate, such as a poly- carbonate of bisphenol-A, with (1) a grafted and non- grafted rubber, such as a diene rubber and a diene rubber grafted with a polar polymer, (2) a monovinyli- dene aromatic/carboxylic anhydride copolymer, such as styrene/maleic anhydride copolymer, and (3) a compati- ble polymer, such as styrene/acrylonitrile copolymer, exhibit improved impact resistance, melt flow proper- ties and deflection temperature. Such blends are par- ticularly useful in the manufacture of molded parts which must be exposed to high temperature during manu- facture and use. An example of a particularly desirable blend is a blend of a homopolycarbonate of bisphenol-A with styrene/maleic anhydride copolymer and an ABS resin containing grafted and nongrafted butadiene rubber and styrene/acrylonitrile random copolymer. 26,928-F
351059
Smart & Biggar
The Dow Chemical Company
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