Title: Chlorofluorocarbon-resistant resin composition and inner box of refrigerator made fron the composition
Application Number: 96199522 Application Date: 1996.01.05
Publication Number: 1207113 Publication Date: 1999.02.03
Approval Pub. Date: Granted Pub. Date: 2003.10.29
International Classifi-cation: C08F279/04,C08L25/12,C08L51/04,C08L55/02,F25D23/06
Applicant(s) Name: Sumika A Address:
Inventor(s) Name: Nakajima Osamu, Hoshikawa Michio
Attorney & Agent: wang weiyu
Abstract:
     A chlorofluorocarbon-resistant resin composition comprising a cluster-like agglomerate graft polymer which is formed by the agglomeration of a small-particle-size graft copolymer prepared by polymerizing 60 to 20 wt.% of a monomer mixture comprising 3o to 45 wt.% of a vinyl cyanide compound and 70 to 55 wt.% of an aromatic vinyl compound in the presence of 40 to 80 wt.% of a rubbery polymer having a weight-mean particle diameter of 0.05 to 0.2 'mu'm and having a graft ratio of 10 to 40 wt.% and has a weight-mean particle diameter of 0.8 to 20 'mu'm and a copolymer prepared by polymerizing 35 to 45 wt.% of a vinyl cyanide compound with 65 to 55 wt.% of an aromatic vinyl compound and having an intrinsic viscosity of 0.6 to 0.9, with the content of the rubbery polymer being 15 to 25 wt.%. This composition is superious to the prior-art resin compositions in chlorofluorocarbon resistance.
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