POLYPHENYLENE SULFIDE RESIN COMPOSITION AND MOLDED PRODUCT FORMED FROM SAME

    公开(公告)号:US20240166875A1

    公开(公告)日:2024-05-23

    申请号:US18283672

    申请日:2022-03-15

    Abstract: A polyphenylene sulfide resin composition includes (a) a polyphenylene sulfide resin and (b) a silicone-based polymer; the content of the component (b) is not less than 3 parts by weight and not more than 40 parts by weight with respect to 100 parts by weight of the component (a); in terms of morphology (phase structure), the polyphenylene sulfide resin composition has a phase-separated structure wherein the component (a) forms a continuous phase and the component (b) forms a dispersed phase in which the component (b) is dispersed with a number average dispersion diameter of not more than 3.0 μm; a test specimen obtained by injection molding of the polyphenylene sulfide resin composition at a cylinder temperature of 310° C. and a mold temperature of 145° C. has a flexural modulus of not more than 3.0 GPa as determined by a flexural test according to ISO 178.

    MOLDING MATERIAL AND MOLDED ARTICLE
    58.
    发明公开

    公开(公告)号:US20240166840A1

    公开(公告)日:2024-05-23

    申请号:US17773119

    申请日:2020-11-04

    CPC classification number: C08K3/04 C08K7/06

    Abstract: The present invention aims to provide a resin composition that is high in moldability in producing a member of a complicated shape by injection molding and also high in flexural modulus and impact property. A molding material including a resin composition containing a thermoplastic resin and carbon fibers, wherein the carbon fibers have substantially the same length as the length of the molding material; the twist angle of the carbon fiber surface layer is 2.0° to 30.5°; the core ratio A/(A+B) is 0.1 to 0.5 where A is the areal fraction of the core portion containing carbon fibers and B is the areal fraction of the remaining portion, that is, the sheath portion, in a cross section perpendicular to the carbon fiber axis direction in the molding material; and the areal void fraction in a cross section perpendicular to the carbon fiber axis direction in the molding material is 5% or less.

Patent Agency Ranking