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    PRODUCTION OF POLYESTER ELASTOMER
    11.
    发明专利
    PRODUCTION OF POLYESTER ELASTOMER 失效

    公开(公告)号：JPS6451427A

    公开(公告)日：1989-02-27

    申请号：JP20957387

    申请日：1987-08-24

    Applicant: KANEBO LTD

    Inventor： KUSHIMOTO TOSHIHIRO ,  OZAWA YOSHIMICHI ,  IZAWA NOBUO

    IPC: C08G63/66

    Abstract: PURPOSE:To obtain a high-quality polyester elastomer within a short time, by reacting a polytetramethylene terephthalate forming component with a polyalkylene glycol by using a soluble niobium compound as a catalyst. CONSTITUTION:A polyester elastomer is obtained without forming any by- products such as tetrahydrofuran by reacting a polytetramethylene terephthalate forming component (A) (e.g., terephthalic acid and 1,4-tetramethylene glycol) which constitutes hard segments with a polyalkylene glycol (B) (e.g., polytetramethylene glycol) which constitutes soft segments in the presence of a soluble niobium compound (C) as a catalyst. Examples of component C include niobic acid and sodium niobate, and its amount of use is 0.0001-0.1wt.% (in terms of niobium metal) based on the polymer formed.

    ELECTRICALLY CONDUCTIVE RESIN COMPOSITION
    12.
    发明专利
    ELECTRICALLY CONDUCTIVE RESIN COMPOSITION 失效

    公开(公告)号：JPS6286053A

    公开(公告)日：1987-04-20

    申请号：JP22746185

    申请日：1985-10-11

    Applicant: KANEBO LTD

    Inventor： KISHIDA YASUO ,  NISHIKAWA TETSUO ,  IZAWA NOBUO

    IPC: C08L77/02 ,  C08K7/00 ,  C08K7/04 ,  C08L77/00 ,  C08L101/00

    Abstract: PURPOSE:To provide the title compsn. having excellent electrical conductivity and electromagnetic wave shielding properties and suitable for use in the production of housings for electrical and electronic appliance, by cutting specified long metallic fibers and blending it with a thermoplastic resin. CONSTITUTION:A metallic wire having a diameter of 1-20mm. obtd. by cold- drawing at least one member selected from among iron, cobalt, nickel, copper and aluminum is cut into a long metallic fiber having a fiber diameter of 10-150mu, which is then cut into a metallic fiber (B) having a fiber length of 15mm or below. 100pts.wt. thermoplastic resin (A) such as a polyamide, a polyes ter, a polyolefin, a polyacetal, an ABS resin, etc. is premixed with 100-500pts. wt. metallic fiber (B) and the mixture is meet-kneaded with a single- or twin- screw extruder.

    Electrically conductive polyester resin composition
    16.
    发明专利
    Electrically conductive polyester resin composition 失效
    电导体聚酯树脂组合物

    公开(公告)号：JPS59197453A

    公开(公告)日：1984-11-09

    申请号：JP7203583

    申请日：1983-04-23

    Applicant: Kanebo Ltd ,  Kanebo Synthetic Fibers Ltd

    Inventor： KISHIDA YASUO ,  IZAWA NOBUO ,  NISHIKAWA TETSUO

    IPC: C08L67/00 ,  C08K7/06 ,  C08L23/00 ,  C08L101/00 ,  H01B1/22

    Abstract: PURPOSE: To provide the titled compsn. which has excellent electrical conductivity and mechanical properties and gives moldings having excellent surface smoothness, by blending a metallic fiber and an ethylene/vinyl acetate copolymer with a polyester fiber.
    CONSTITUTION: An electrically conductive polyester resin compsn. is obtd. by blending 5W200pts.wt. metallic fiber (e.g. aluminum, brass or stainless steel fiber having a fiber diameter of 5W150μ and a fiber length of 0.5W15mm) and 2W 20pts.wt. ethylene/vinyl acetate copolymer with 100pts.wt. polyester resin such as polyethylene terephthalate. When the metallic fiber is incorporated as an electrically conductive filler, excellent electrical conductivity can be imparted by the use of a relatively small quantity of the metallic fiber and various physical properties are not so much lowered, but moldings have disadvantages in that lowering in strength at a weldline is remarkable, impact resistance is lowered and surface smoothness becomes poor. by blending the ethylene/vinyl acetate copolymer, the above disadvantages can be eliminated and there can be obtd. a compsn. which has excellent electrical conductivity and mechanical properties and gives moldings having excellent surface smoothness.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的：提供标题化合物。 其具有优异的导电性和机械性能，并且通过将金属纤维和乙烯/乙酸乙烯酯共聚物与聚酯纤维共混而得到具有优异表面光滑度的模制品。 构成：导电聚酯树脂。 是obtd。 通过混合5-200pts.wt。 金属纤维（例如铝，黄铜或不锈钢纤维，纤维直径为5-150μm，纤维长度为0.5-15mm）和2-20pts.wt。 乙烯/乙酸乙烯酯共聚物，100pts.wt。 聚酯树脂如聚对苯二甲酸乙二醇酯。 当金属纤维作为导电填料掺入时，可以通过使用相对少量的金属纤维来赋予优异的导电性，并且各种物理性能不会降低，但是模制品的缺点在于， 焊接线显着，耐冲击性降低，表面光滑度差。 通过共混乙烯/乙酸乙烯酯共聚物，可以消除上述缺点，可以得到。 一个compsn。 其具有优异的导电性和机械性能，并且具有优异的表面光滑度的模制品。

    SHEATH-CORE TYPE COMPOSITE FIBER
    17.
    发明专利
    SHEATH-CORE TYPE COMPOSITE FIBER 失效

    公开(公告)号：JPS57199816A

    公开(公告)日：1982-12-07

    申请号：JP8484081

    申请日：1981-06-01

    Applicant: KANEBO GOSEN KK ,  KANEBO LTD

    Inventor： MATSUI MASAO ,  IZAWA NOBUO ,  OKAMOTO TANEO ,  NARUSE TSUTOMU ,  OSAGAWA TAKAO

    IPC: D01F8/04

    Abstract: PURPOSE:The titled fibers, consisting of a fiber-forming polymer, and a sheath component having cracks reaching a core component in the longitudinal direction and the core consisting of a polymer having a higher dissolution or decomposition rate than the sheath component, and capable of giving hollow fibers having improved water absorbing ability and water retaining property by extracting the core component. CONSTITUTION:Fibers consisting of a fiber-forming polymer, e.g. a polyester, and a sheath component having cracks reaching a core component in the longitudinal direction, preferably formed in the cooling, heating, drawing and/or treating steps with a swelling agent, preferably having local thin parts and cracks near the thin parts and the core component consisting of a polymer having a higher dissolution or decomposition rate than the sheath component. Preferably, the sheath component consists of an aromatic polyester, and the core component consists of a polyester having a higher dissolution or decomposition rate than the sheath component. The ratio of the core component to the cross-sectional area is preferably 5-75%, and more preferably 10-50%.

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