Chlorofluorocarbon resistant resin composition and a refrigerator inner casing formed from the same composition

摘要

PCT No. PCT/JP96/00005 Sec. 371 Date Jul. 2, 1998 Sec. 102(e) Date Jul. 2, 1998 PCT Filed Jan. 5, 1996 PCT Pub. No. WO97/25376 PCT Pub. Date Jul. 17, 1997The invention relates to a chlorofluorocarbon resistant resin composition characterized by comprising an agglomerated graft polymer (Y) occurring in clusters having a weight average particle diameter of 0.8-2.0 mu m as formed from a small particle diameter graft polymer (y) obtained in a grafting degree of 10-40 weight % by polymerizing 60-20 weight % of a monomer mixture comprising 30-45 weight % of a vinyl cyanide compound and 70-55 weight % of an aromatic vinyl compound in the presence of 40-80 weight % of a rubber like polymer having a weight average particle diameter of 0.05-0.2 mu m and a copolymer (Z) obtained by polymerizing 35-45 weight % of a vinyl cyanide compound with 65-55 weight % of an aromatic vinyl compound and having an intrinsic viscosity of 0.6-0.9, the rubber like polymer accounting for 15-25 weight % of the total composition. The resin composition of the invention is superior to the conventional resin composition in chlorofluorocarbon resistance.