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    POLYAMIDE MONOFILAMENT AND USE OF THE SAME
    91.
    发明专利
    POLYAMIDE MONOFILAMENT AND USE OF THE SAME 审中-公开

    公开(公告)号：JP2002348732A

    公开(公告)日：2002-12-04

    申请号：JP2002073392

    申请日：2002-03-18

    Applicant: TORAY INDUSTRIES ,  TORAY MONOFILAMENT CO

    Inventor： MASUDA TOYOHIKO ,  MAEDA YUHEI ,  KUBO KOICHI ,  ASAI CHO

    IPC: A01D34/73 ,  D01F6/60 ,  D01F6/90

    Abstract: PROBLEM TO BE SOLVED: To provide a polyamide monofilament having abrasion resistance superior to that of a conventional polyamide monofilament, having a sufficient strength elongation and useful as a mower wire or the like. SOLUTION: The polyamide monofilament having Y which is a number of times of abrasion reciprocation against a chromium stick needed before the monofilament is broken and satisfies Y>=3,850X +24,000X(wherein, X(mm) is a diameter of a monofilament). The mower wire consisting of the polyamide monofilament.

    POLYLACTIC ACID FIBER AND METHOD FOR PRODUCING THE SAME
    95.
    发明专利
    POLYLACTIC ACID FIBER AND METHOD FOR PRODUCING THE SAME 失效

    公开(公告)号：JP2002212832A

    公开(公告)日：2002-07-31

    申请号：JP2001059775

    申请日：2001-03-05

    Applicant: TORAY INDUSTRIES

    Inventor： ARANISHI YOSHITAKA ,  MATSUMOTO HIROSHIGE ,  MAEDA YUHEI

    IPC: D01F6/62 ,  C08L101/16 ,  D02J1/22

    Abstract: PROBLEM TO BE SOLVED: To provide a polylactic acid fiber especially capable of developing a feeling, such as making crapes or developing differences of yarn lengths, because the fiber can be properly shrunk especially when it is formed into a cloth structure. SOLUTION: This polylactic acid fiber has a shrinkage stress of 0.05-0.5 cN/dtex at 100 deg.C, a boiling water shrinkage rate under noload (S0) and a boiling water shrinkage rate under a load of 0.01 cN/dtex (S1) of which the both satisfy specific relations.

    ALIPHATIC POLYESTER RESIN AND MOLDED ARTICLE
    97.
    发明专利
    ALIPHATIC POLYESTER RESIN AND MOLDED ARTICLE 失效

    公开(公告)号：JP2001323056A

    公开(公告)日：2001-11-20

    申请号：JP2000144641

    申请日：2000-05-17

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUMOTO HIROSHIGE ,  MASUDA TOYOHIKO ,  MAEDA YUHEI

    IPC: C08J5/18 ,  C08G63/91 ,  C08L101/16

    Abstract: PROBLEM TO BE SOLVED: To provide an aliphatic polyester resin which has a practically sufficiently high mol.wt., high hydrolysis resistance and high heat resistance, and to provide a formed article such as a fiber or film. SOLUTION: This aliphatic polyester resin characterized in that the carboxy groups of an aliphatic polyester are partially or substantially wholly sealed with one or more kinds of compounds selected from oxazoline compounds and oxazine compounds. Polylactic acid is preferably used as the aliphatic polyester.

    METHOD FOR PRODUCING POLYPROPYLENE TEREPHTHALATE FIBER
    98.
    发明专利
    METHOD FOR PRODUCING POLYPROPYLENE TEREPHTHALATE FIBER 失效

    公开(公告)号：JP2001098419A

    公开(公告)日：2001-04-10

    申请号：JP27888899

    申请日：1999-09-30

    Applicant: TORAY INDUSTRIES

    Inventor： KANNO KOJI ,  KIDAI AKIRA ,  MAEDA YUHEI

    IPC: D01F6/62

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polypropylene terephthalate fiber having good dimensional stability and hardly hardening the feeling of a fabric by improving the problems of the defects of a conventional polypropylene fiber, i.e., high heat shrinkage and insufficient dimensional stability, and, as a result, hardly hardening the touch feeling caused by the fabric made dense by the shrinkage. SOLUTION: This method for producing the polypropylene terephthalate fiber comprises drawing an undrawn fiber of the polyester composed of polymer components comprising >=90 mol% propylene terephthalate unit, between rolls of the first hot roll heated to 50-80 deg.C and the second hot roll heated to

    HIGHLY ORIENTED UNDRAWN YARN OF POLYPROPYLENE TEREPHTHALATE AND ITS PRODUCTION
    99.
    发明专利
    HIGHLY ORIENTED UNDRAWN YARN OF POLYPROPYLENE TEREPHTHALATE AND ITS PRODUCTION 失效

    公开(公告)号：JP2001064824A

    公开(公告)日：2001-03-13

    申请号：JP23823999

    申请日：1999-08-25

    Applicant: TORAY INDUSTRIES

    Inventor： KANNO KOJI ,  MOCHIZUKI KATSUHIKO ,  MAEDA YUHEI

    IPC: D01F6/62 ,  D02J1/08 ,  D02J1/22

    Abstract: PROBLEM TO BE SOLVED: To produce a highly oriented undrawn yarn of polypropylene terephthalate capable of suppressing problems in a conventional two-step method for the highly oriented undrawn yarn of the polypropylene terephthalate, i.e., a change in filaments with time after spinning, imparting flexibility to the production and improving productivity and to provide a method for producing the yarn. SOLUTION: This highly oriented undrawn yarn of polypropylene terephthalate comprises polyester filaments in which at least 90 mol% of polymer components forming the filaments are composed of propylene terephthalate units and satisfies the following formulae (1) to (4): (1) strength ST (g/d): 2.0

    HIGHLY CRIMPABLE POLYESTER-BASED CONJUGATE FIBER AND ITS PRODUCTION AND FABRIC
    100.
    发明专利
    HIGHLY CRIMPABLE POLYESTER-BASED CONJUGATE FIBER AND ITS PRODUCTION AND FABRIC 失效

    公开(公告)号：JP2001055634A

    公开(公告)日：2001-02-27

    申请号：JP2000165544

    申请日：2000-06-02

    Applicant: TORAY INDUSTRIES

    Inventor： MOCHIZUKI KATSUHIKO ,  UCHIDA MINORU ,  MAEDA YUHEI

    IPC: D04B1/20 ,  D01F8/14 ,  D03D15/08

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject fiber as a conjugate yarn composed of a combination of two kinds of polyesters with the respective intrinsic viscosities(IV) satisfying specified relationships, improved in crimp developability under fabric restriction and crimp setting tendency, thereby capable of giving highly stretchable fabrics, by conjugate spinning of the above polyesters followed by conducting a drawing and heat-setting under specified conditions. SOLUTION: This highly crimpable polyester-based conjugate fiber with a U% of

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