THERMOPLASTIC RESIN COMPOSITION HIGHLY RESISTANT TO HCFC-141B AND MOLDING MATERIAL FOR INNER COMPARTMENT OF REFRIGERATOR IN CONTACT WITH THERMAL INSULATOR WITH HCFC-141B AS BLOWING AGENT

摘要

PURPOSE: To obtain the subject composition excellent in resistance to CFCs, mechanical strength, processability, etc., useful for molding the inner compartments for e.g. refrigerators using CFCs alternatives, comprising a specific rubber-reinforced resin and a graft polymer. ;CONSTITUTION: This resin composition comprises (A) 100 pts.wt. of such a rubber-reinforced resin that (1) a graft polymer 20-70 (pref. 30-60) % in graft rate prepare by graft-polymerizing a mixture of an aromatic vinyl compound and vinyl cyanide compound at the weight ratio of (80-60):(20-40) (pref. styrene and acrylonitrile) to 10-40wt.% of a rubbery polymer (pref. 15-30wt.% of a conjugated diene rubber) has been dispersed in an aromatic vinyl-vinyl cyanide copolymer (the vinyl cyanide component accounting for 32-45wt.%, pref. 35-40wt.%) and (B) 0.5-10 pts.wt. of a graft polymer prepared by graft- polymerizing a total of pref. 40-100 pts.wt. of an aromatic vinyl compound and vinyl cyanide compound to 100 pts.wt. of polyethylene and/or polypropylene.;COPYRIGHT: (C)1994,JPO&Japio