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    PRODUCTION OF POLYESTER FIBER
    81.
    发明专利
    PRODUCTION OF POLYESTER FIBER 失效

    公开(公告)号：JPH06294008A

    公开(公告)日：1994-10-21

    申请号：JP8040893

    申请日：1993-04-07

    Applicant: TORAY INDUSTRIES

    Inventor： MIZUHASHI MOTOI ,  MAEDA YUHEI ,  MATSUMOTO TADAYUKI

    IPC: D01D5/084 ,  D01F6/62

    Abstract: PURPOSE:To enable the production of a number of various kinds of polyester fibers without changing the spinning speed by properly adjusting the position of a heating cylinder corresponding to the kind of the fiber to be produced. CONSTITUTION:In the melt-spinning of a polyester comprising the reheating of a cooled and solidified polyester, a heating cylinder composed of an outer cylinder 10 and an inner cylinder 11 is used and a yarn Y is introduced into the inner cylinder 11 to induce a circulation flow in the heating cylinder and attain a temperature gradient in the heating cylinder satisfying the formula Tc-Ti>=3.0(To-Tc), wherein Tc ( deg.C) is atmospheric temperature in the inner cylinder at the center of the heating cylinder; Ti ( deg.C) is atmospheric temperature at the inlet port of the heating cylinder; T0 ( deg.C) is the atmospheric temperature at the outlet port of the heating cylinder. Since a yarn having practically sufficient residual elongation is producible by this process, the exchange success ratio of an automatic exchanging winder is remarkably improved.

    PRODUCTION OF POLYESTER FIBER
    82.
    发明专利
    PRODUCTION OF POLYESTER FIBER 失效

    公开(公告)号：JPH06128811A

    公开(公告)日：1994-05-10

    申请号：JP14766892

    申请日：1992-06-08

    Applicant: TORAY INDUSTRIES

    Inventor： MIZUHASHI MOTOI ,  MAEDA YUHEI ,  AISO HARUO

    IPC: D01F6/62

    Abstract: PURPOSE:To efficiently obtain polyester fibers by cooling and solidify a polyester delivered through a spinneret and by reheating the resultant yarns under a specified temperature gradient before takeup to enable various kinds of products to be produced without the need for changing spinning speed with higher successful winder switching rate. CONSTITUTION:A polyester is delivered at about 290 deg.C through a spinneret 1, the resultant filament yarns Y are passed through a thermal insulating zone 2 under the spinneret 1 and perpendicularly subjected to air flow by a chimney 3 to cool the yarns Y to room temperature and solidify them followed by introducing the solidified yarns into a heating zone such as a hot tube 4 set up under the spinneret 1. The heating gradient in this zone is set according to the formula, [where, Tc is the atmospheric temperature at the center of the zone ( deg.C); Ti is the atmospheric temperature at the inlet of the zone ( deg.C); To is the atmospheric temperature at the outlet of the zone ( deg.C)] and, under this condition, the yarns are drawn and heat set followed by oiling with a relevant device 5 and then interlacing them with a relevant device 6 and takeup with a pair of goddet rolls 7 and then winding the heatset yarns on a winder 8, thus obtaining objective polyester fibers so as to enable various kinds of products to be produced without the need for changing spinning speed.

    POLYESTER FIBER FOR CAR SHEET
    83.
    发明专利
    POLYESTER FIBER FOR CAR SHEET 失效

    公开(公告)号：JPH0649706A

    公开(公告)日：1994-02-22

    申请号：JP26928091

    申请日：1991-10-17

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIZAWA HIROAKI ,  MAEDA YUHEI ,  FUKUHARA MOTOTADA

    IPC: D01F6/62

    Abstract: PURPOSE:To obtain polyester fibers excellent in light resistance with good dyability and suitable for a car sheet which requires high light resistance. CONSTITUTION:The subject polyester fibers for a car sheet consists of polyester fibers the main component of which is ethylene terephthalate and specifically satisfies the following equations. 110 =156-119XXrho (2), tandeltamax l 0.12 (3), where Tmax('C) is a peak temperature of tandelta which is given by measurement of dynamic viscolasticity which is given by measurement of dynamic viscoelasticity measured at 110 Hz frequency and 3 deg.C/min. programming rate, Xrho is crystallinity and tanrho max is a peak value of tan rho.

    PRODUCTION OF LOW SHRINKAGE POLYESTER FIBER
    84.
    发明专利
    PRODUCTION OF LOW SHRINKAGE POLYESTER FIBER 失效

    公开(公告)号：JPH03234810A

    公开(公告)日：1991-10-18

    申请号：JP2476890

    申请日：1990-02-02

    Applicant: TORAY INDUSTRIES

    Inventor： MAEDA YUHEI ,  SASAMOTO FUTOSHI ,  FUKUHARA MOTOTADA

    IPC: D01F6/62

    Abstract: PURPOSE:To obtain the subject fiber suitable for curtain, etc., having excellent heat-dimensional stability by subjecting an ethylene terephthalate-based polyester obtained by co-using an antimony compound and a germanium compound as polymerizing catalysts to high speed spinning. CONSTITUTION:The objective fiber is obtained by using a polyester obtained by co-using an antimony compound (preferably antimony trioxide or antimony pentoxide) in an amount of 30-150ppm as antimony metal and a germanium compound (preferably germanium dioxide) in an amount of 5-120ppm as germanium metal as polymerization catalysts, in spinning of polyester containing ethylene terephthalate as a principal repeating unit at >=5500m/min.

    PRODUCTION OF COMBINED POLYESTER FILAMENT YARN HAVING DIFFERENT SHRINKAGE
    85.
    发明专利
    PRODUCTION OF COMBINED POLYESTER FILAMENT YARN HAVING DIFFERENT SHRINKAGE 失效

    公开(公告)号：JPH03167341A

    公开(公告)日：1991-07-19

    申请号：JP30499589

    申请日：1989-11-24

    Applicant: TORAY INDUSTRIES

    Inventor： MAEDA YUHEI ,  HIRAI SATOSHI ,  FUKUHARA MOTOTADA

    IPC: D01F6/62 ,  D01F6/84 ,  D02G3/04 ,  D02J1/22

    Abstract: PURPOSE:To obtain the subject yarn capable of producing sufficient bulkiness by weaving, knitting or relaxing heat treatment and maintaining soft hand even under dry heat-treating conditions at a high temperature by producing yarn from two or more kinds of polyesters having different copolymerization ratios according to a specific method. CONSTITUTION:The objective yarn, obtained by initially respectively melt spinning two or more kinds of polyesters having >=10mol% difference in copolymerization ratio between a polyester having the highest copolymerization ratio and a polyester having the lowest copolymerization ratio, respectively once cooling and solidifying the respective yarns, passing the aforementioned respective yarns through a common heating zone, drawing and heat-treating the yarns, then taking off the produced yarns and having >=0.3g/d heat shrinkage stress, >=105 deg.C peak temperature of the heat shrinkage stress and

    PRODUCTION OF FLUFF TEXTURED YARN
    86.
    发明专利
    PRODUCTION OF FLUFF TEXTURED YARN 失效

    公开(公告)号：JPH03124834A

    公开(公告)日：1991-05-28

    申请号：JP26087389

    申请日：1989-10-05

    Applicant: TORAY INDUSTRIES

    Inventor： HIRAI SATOSHI ,  MAEDA YUHEI ,  FUKUHARA MOTOTADA

    IPC: D01F6/62 ,  D01D5/08 ,  D01D5/20 ,  D02G1/02 ,  D02G3/22 ,  D02J3/02

    Abstract: PURPOSE:To obtain the title textured yarn having soft touch, swelling, cripsy feeling and high strength by subjecting a specific multifilament and ordinary multifilament to yarn doubling and simultaneously drawing and falsely twisting. CONSTITUTION:(A) Multifilament (denier ratio of thick and thin parts of preferably 1.3) prepared by delivering plural flows having different delivery linear speeds from a spinneret for melt spinning and joining right under the spinneret and having thick and thin parts in the longer direction of yarn and noncircular cross section and (B) multifilament having uniformity in the longer direction of yarn are subjected to yarn doubling in the ratio of (30:70)-(70:30), simultaneously drawn and falsely twisted to give the objective yarn wherein the multifilament A has >=2.0 deformation degree and fine part of the multifilament A is cut. The textured yarn preferably comprises polyethylene terephthalate wherein the multifilament B has >=20% higher elongation than that of the multifilament A and the multifilament has >=0.05 lower intrinsic viscosity than that of the multifilament B.

    RESIN COMPOSITION AND MOLDING
    89.
    发明专利
    RESIN COMPOSITION AND MOLDING 审中-公开

    公开(公告)号：JP2003238775A

    公开(公告)日：2003-08-27

    申请号：JP2002035462

    申请日：2002-02-13

    Applicant: TORAY INDUSTRIES

    Inventor： OCHI TAKASHI ,  KIMURA TOSHIAKI ,  MAEDA YUHEI

    IPC: C08J5/00 ,  C08L67/00 ,  C08L101/16 ,  D01F6/92

    Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition which has excellent machanical characteristics, heat resistance and abrasion resistance, and unprecedentedly, in which a polyamide is uniformly blended in an aliphatic polyester. SOLUTION: The resin composition is characterized in that it has a sea-island structure in which the polyamide is blended in the aliphatic polyester and that the domain size of the island component is 0.001-10 μm. COPYRIGHT: (C)2003,JPO

    POLYESTER RESIN COMPOSITION
    90.
    发明专利
    POLYESTER RESIN COMPOSITION 审中-公开

    公开(公告)号：JP2003171536A

    公开(公告)日：2003-06-20

    申请号：JP2001370574

    申请日：2001-12-04

    Applicant: TORAY INDUSTRIES

    Inventor： OCHI TAKASHI ,  MASUDA TOYOHIKO ,  MAEDA YUHEI

    IPC: C08J5/18 ,  C08L67/00 ,  C08L101/16 ,  D01F6/92 ,  D02G1/00

    Abstract: PROBLEM TO BE SOLVED: To provide a novel polyester resin composition which mainly comprises an aliphatic polyester having never existed before and is excellent in high- temperature mechanical characteristics and heat resistance. SOLUTION: This polyester resin composition is prepared by blending an aliphatic polyester with 5-40 wt.% aromatic polyester which is prepared by using a 6C or higher diol ingredient or by copolymerizing a 6C or higher diol ingredient and/or a 6C or higher dicarboxylic acid ingredient. COPYRIGHT: (C)2003,JPO

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