THERMOPLASTIC POLYESTER ELASTOMER RESIN COMPOSITION AND MOLDED PRODUCT

    公开(公告)号:US20240101814A1

    公开(公告)日:2024-03-28

    申请号:US18266850

    申请日:2021-12-16

    Inventor: Ayano NAKASHIMA

    CPC classification number: C08L67/03 C08L2201/56 C08L2203/30 C08L2207/04

    Abstract: The present invention aims to provide a thermoplastic polyester elastomer resin composition capable of providing a molded product having good appearance and really excellent abrasion resistance. According to the present invention, there is provided a thermoplastic polyester elastomer resin composition comprising a thermoplastic polyester elastomer (A) and a silicone-acrylic copolymer (B); wherein the thermoplastic polyester elastomer (A) contains a hard segment and a soft segment bonded to each other, wherein the hard segment comprises a polyester formed from an aromatic dicarboxylic acid and an aliphatic and/or alicyclic diol as constituent components, wherein the soft segment is at least one member selected from the group consisting of an aliphatic polyether, an aliphatic polyester, and an aliphatic polycarbonate; and wherein, in a molded product obtained by injection molding of the thermoplastic polyester elastomer resin composition, the silicone-acrylic copolymer (B) dispersed in the thermoplastic polyester elastomer (A) forming a matrix has an average dispersion area of 0.3 μm2 or less.

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