Blends of polycarbonates with rubber and monovinylidene...

Details Blends of polycarbonates with rubber and monovinylidene... Blends of polycarbonates with rubber and monovinylidene...

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

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