PREPREG, METHOD FOR ITS PRODUCTION, AND FIBER-REINFORCED MOLDED PRODUCT

    公开(公告)号:US20180282499A1

    公开(公告)日:2018-10-04

    申请号:US15996966

    申请日:2018-06-04

    Abstract: To provide a prepreg excellent in storage stability and capable of obtaining a fiber-reinforced molded product excellent in impact resistance, and a method for its production, as well as a fiber-reinforced molded product excellent in impact resistance. The prepreg comprises reinforcing fibers and a matrix resin, wherein the matrix resin comprises a thermoplastic resin (but excluding the following fluororesin) and a melt-formable fluororesin having a melting point of from 100 to 325° C. and having functional groups of at least one type selected from the group consisting of carbonyl group-containing groups, hydroxy groups, epoxy groups and isocyanate groups, and in 100 mass % of the total of the thermoplastic resin and the fluororesin, the proportion of the thermoplastic resin is from more than 30 to 99 mass % and the proportion of the fluororesin is from 1 to less than 70 mass %.

    PREPREG, METHOD FOR ITS PRODUCTION AND FIBER-REINFORCED MOLDED PRODUCT

    公开(公告)号:US20180282500A1

    公开(公告)日:2018-10-04

    申请号:US15997004

    申请日:2018-06-04

    Abstract: To provide a prepreg excellent in storage stability and capable of obtaining a fiber-reinforced molded product excellent in impact resistance, chemical resistance and inter-member (interlayer) adhesion and a method for its production as well as a fiber-reinforced molded product excellent in impact resistance, chemical resistance and inter-member (interlayer) adhesion. The prepreg comprises reinforcing fibers and a matrix resin, wherein the matrix resin comprises, as a resin component, only a melt-moldable fluororesin having a melting point of from 100 to 325° C. and having functional groups of at least one type selected from the group consisting of carbonyl group-containing groups, hydroxy groups, epoxy groups and isocyanate groups, or the fluororesin and a thermoplastic resin (but excluding the fluororesin), and in 100 mass % of the total of the fluororesin and the thermoplastic resin, the proportion of the fluororesin is from 70 to 100 mass % and the proportion of the thermoplastic resin is from 0 to 30 mass %.

    FLUORINATED COPOLYMER COMPOSITION, MOLDED PRODUCT AND
ELECTRIC WIRE
    3.
    发明申请
    FLUORINATED COPOLYMER COMPOSITION, MOLDED PRODUCT AND ELECTRIC WIRE 审中-公开
    氟化共聚物组合物,模制产品和电线

    公开(公告)号:US20140342155A1

    公开(公告)日:2014-11-20

    申请号:US14448228

    申请日:2014-07-31

    Abstract: To provide a fluorinated copolymer composition which is excellent in physical properties such as abrasion resistance, etc. and which is suitable for use as e.g. an electric wire-coating material; a molded product; and an electric wire. The fluorinated copolymer composition comprises fluorinated copolymer (A) comprising constituent units (a) derived from tetrafluoroethylene, constituent units (b) derived from a fluorinated monomer (provided that tetrafluoroethylene is excluded), and constituent units (c) derived from a monomer having an acid anhydride residue and no fluorine atom, in a specific ratio, and thermoplastic resin (B) having a Rockwell hardness of at least M60 and an insulation performance as defined by ASTM D-257 of at least 1015 Ω·cm in a volume ratio of (A)/(B)=from 99/1 to 55/45. The molded product and the electric wire are ones prepared by using such a fluorinated copolymer composition.

    Abstract translation: 提供具有优异的物理性质如耐磨性等的氟化共聚物组合物,并且适合用作例如乙烯。 电线材料; 模制产品; 和电线。 含氟共聚物组合物包含含有源自四氟乙烯的构成单元(a)的氟化共聚物(A),来自氟化单体的构成单元(b)(不包括四氟乙烯)和来自具有 酸酐残基,无特定比例的氟原子,并且具有至少M60的洛氏硬度至少为M60的热塑性树脂(B)和由ASTM D-257定义的绝缘性能至少为1015&OHgr·cm,体积比 (A)/(B)= 99/1〜55/45。 模制产品和电线是通过使用这种氟化共聚物组合物制备的。

    INSULATED ELECTRIC WIRE AND ITS PRODUCTION PROCESS

    公开(公告)号:US20170154707A1

    公开(公告)日:2017-06-01

    申请号:US15429448

    申请日:2017-02-10

    Abstract: To provide an insulated electric wire having an insulating layer comprising PFA, which is excellent in the abrasion resistance without increasing the thickness of the insulating layer. An insulated electric wire comprising a conductor and an insulating layer covering the conductor, wherein the insulating layer comprises a fluorinated copolymer (A) having units based on tetrafluoroethylene and units based on a perfluoroalkyl vinyl ether, the content of the units based on a perfluoroalkyl vinyl ether is from 0.1 to 1.9 mol % to the total units in the fluorinated copolymer (A); MRF of the fluorinated copolymer (A) as measured by the method in accordance with ASTM D-3307 is at least 0.1 and less than 15; the melting point of the fluorinated copolymer (A) is at least 260° C.; and the ratio of the thickness Di of the insulating layer to the diameter Dc of the conductor (Di/Dc) is less than 0.5.

    METHOD FOR PRODUCING ELECTRIC WIRE, METHOD FOR PRODUCING MOLDED ARTILE, AND METHOD FOR PRODUCING RESIN MATERIAL CONTAINING MODIFIED FLUORORESIN
    6.
    发明申请
    METHOD FOR PRODUCING ELECTRIC WIRE, METHOD FOR PRODUCING MOLDED ARTILE, AND METHOD FOR PRODUCING RESIN MATERIAL CONTAINING MODIFIED FLUORORESIN 审中-公开
    生产电线的方法,生产模制品的方法和生产含有改性氟菊酯的树脂材料的方法

    公开(公告)号:US20160340455A1

    公开(公告)日:2016-11-24

    申请号:US15226356

    申请日:2016-08-02

    Abstract: To provide a production method capable of improving the abrasion resistance of an electric wire or molded article using a fluororesin, by electron beam irradiation in air at a temperature where the fluororesin does not melt, and a method for producing a resin material containing a modified fluororesin whereby an electric wire or a molded article excellent in abrasion resistance can be obtained. A method for producing an electric wire, which comprises a step of irradiating an electron beam to an insulating layer containing a fluororesin and covering a conductor, to form an insulating layer containing a modified fluororesin, characterized in that the fluororesin has a crystalline melting point of at least 260° C., contains either one or both of a structural unit (a) having a carbonyl group-containing group and a main chain terminal group (a′) having a carbonyl group-containing group, and a structural unit (b) based on a perfluoromonomer and does not contain a structural unit based on a hydrocarbon monomer (but excluding the structural unit (a)), and irradiation of the electron beam is conducted under conditions of a temperature of less than the crystalline melting point of the fluororesin and in air, to satisfy at least one of the following (1) to (3): 0.5≦Mb/Ma

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