CHLOROFLUOROCARBON-RESISTANT RESIN COMPOSITION AND INNER BOX OF REFRIGERATOR MADE FROM THE COMPOSITION

摘要

The 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.