Thermoplastic composition

Details Thermoplastic composition Thermoplastic composition

C - Chemistry, Metallurgy

08

L

400/3037

C08L 69/00 (2006.01) C08L 51/04 (2006.01) C08L 55/02 (2006.01)

Patent

CA 1205939

- 17 - ABSTRACT THERMOPLASTIC COMPOSITION A thermoplastic composition which comprises a blend comprising 20 to 80 % by weight of a polycarbonate resin and 80 to 20 % by weight of a graft polymer obtained by grafting at least one aromatic vinyl compound and at least one of vinyl cyanides and alkyl unsaturated carboxy- lates onto a conjugated diene rubber or its mixture with a copolymer of at least one aromatic vinyl compound and at least one of vinyl cyanides and alky unsaturated carboxy- lates in an amount of not more than 90 % by weight on the basis of the combined amount of the graft polymer and the copolymer, and a polyolefin or a plasticizer having a light transmission of not less than 70 % when determined on the film of 20 microns in thickness prepared by the use of a solution of the plasticizer (0.25 g) and acrylonitrile- styrene copolymer (weight ratio of acrylonitrile and styrene, 30 : 70; 0.75 g) in acetone (10 ml), the weight proportion of the blend and the polyolefin or the plasti- cizer being 100 : 0.2 - 20. The resulting composition is excellent in solvent resistance, welding strength, impact resistance, molding property, etc.

411017

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