RESIN COMPOSITION AND MOLDED ARTICLE

    公开(公告)号:US20220010131A1

    公开(公告)日:2022-01-13

    申请号:US17482938

    申请日:2021-09-23

    Abstract: A resin composition containing an aromatic polyether ketone resin (I); and a fluorine-containing copolymer (II), the resin composition satisfying an r2/r1 ratio of 1.60 or lower, wherein r1 is an average dispersed particle size of the fluorine-containing copolymer (II) and r2 is an average dispersed particle size of the fluorine-containing copolymer (II) after melt flow rate measurement at 380° C. and a load of 5000 g and with a preheating time of five minutes in conformity with ASTM D1238. Also disclosed is a pellet obtained by molding the resin composition and a molded article formed from the resin composition or the pellet.

    RESIN MOLDING
    6.
    发明申请

    公开(公告)号:US20210230370A1

    公开(公告)日:2021-07-29

    申请号:US17050871

    申请日:2019-05-08

    Abstract: A resin molded article having a microphase-separated structure, the resin molded article containing a polyimide resin (A) and a polyether ketone resin (B), the polyimide resin (A) containing repeating structural units of formulae (1) and (2): wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring, a content ratio of the repeating structural unit of formula (1) with respect to the total of the repeating structural unit of formula (1) and the repeating structural unit of formula (2) is 20 to 70 mol %, and a weight average molecular weight Mw is 40,000 to 150,000.

    Polymer, resin composition and resin molded product

    公开(公告)号:US10266650B2

    公开(公告)日:2019-04-23

    申请号:US15698786

    申请日:2017-09-08

    Abstract: A polymer includes a first structural unit represented by formula (1-1), (1-2) or (1-3) and a second structural unit represented by formula (2) or (3). In the formulae (1-1) to (1-3), (2) and (3), R1, R10 and R11 each represent a halogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms, a monovalent halogenated hydrocarbon group having 1 to 20 carbon atoms, a nitro group or a cyano group; Zs each represent —O— or —S—; R4s each represent a methylene group or an alkylene group having 2 to 4 carbon atoms; and L represents a divalent group represented by formula (2-1). In the formula (2-1), Ra represents a divalent alicyclic hydrocarbon group having 5 to 30 ring atoms or a divalent fluorinated alicyclic hydrocarbon group having 5 to 30 ring atoms.

    COMPOSITION FOR BONDED MAGNETS AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20190027286A1

    公开(公告)日:2019-01-24

    申请号:US16040342

    申请日:2018-07-19

    Abstract: The present invention relates to a composition for bonded magnets having good hot water resistance and a method of manufacturing the composition. The method of manufacturing a composition for bonded magnets includes: obtaining a first kneaded mixture by kneading a rare earth-iron-nitrogen-based magnetic powder and an acid-modified polypropylene resin; and obtaining a second kneaded mixture by kneading the first kneaded mixture with a polypropylene resin and an amorphous resin having a glass transition temperature of 120° C. or higher and 250° C. or lower, wherein, with respect to 100 parts by weight of the rare earth-iron-nitrogen-based magnetic powder, the amount of the acid-modified polypropylene resin is 3.5 parts by weight or greater and less than 10.4 parts by weight, and the total amount of the polypropylene resin and the amorphous resin is 0.35 part by weight or greater and less than 3.88 parts by weight.

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