Patents Assigned to Sumitomo Dow Ltd.
  • Patent number: 6602938
    Abstract: This invention is a flame resistant polycarbonate resin composition characterized by blending 0.01-2 weight parts of a silicone compound (B)) wherein a main chain has a branch structure and having an aromatic group in an organic substituent, 0.01-2 weight parts of an alkali metal salt of an aromatic sulfonic acid (C) represented by the following general formula 1 (hereafter, referred to as general formula 1), and 0.05-5 weight parts of a fiber-forming fluorine-containing polymer (D), relative to 100 parts of a polycarbonate resin (A): General formula 1: Am—R—(SO3M)n (wherein, R is a phenyl group, naphthyl group, or a phenyl group or naphthyl group substituted by A, where A is at least one type of substituent chosen from a group comprising a halogen atom, alkyl group, aryl group, vinyl group, alkoxy group, amino group, methyl ester group and ethyl ester group, and M is an alkali metal.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: August 5, 2003
    Assignees: Sumitomo Dow Ltd., NEC Corp.
    Inventors: Masatoshi Iji, Shin Serizawa, Satoshi Umeyama, Tadashi Shinomiya, Ichiro Sato