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公开(公告)号：JP2006345924A
公开(公告)日：2006-12-28
申请号：JP2005172518
申请日：2005-06-13
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA KOTA , KAWABATA SHINICHI , FUTAI KATSUNORI
IPC: A63B51/02
Abstract: PROBLEM TO BE SOLVED: To provide strings capable of being not only turned to a narrow gauge but also spread on a racket by high tension since strength per unit cross sectional area is high. SOLUTION: The strings are composed by arranging at at least a part of core yarn of polyhexamethylene adipamide multifilaments, 95 mol% or more of which is composed of a hexamethylene adipamide unit and whose strength is 9-12 cN/dtex, fracture elongation is 16-24%, single yarn fineness is 1-20 dtex, the number of interengagements (CN value) is 5-40 and amorphous molecular orientation degree (fa) is 0.72-0.9. COPYRIGHT: (C)2007,JPO&INPIT
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公开(公告)号：JPH11256465A
公开(公告)日：1999-09-21
申请号：JP5987398
申请日：1998-03-11
Applicant: TORAY INDUSTRIES
Inventor： FUTAI KATSUNORI , TAKAHASHI MASAKADO
Abstract: PROBLEM TO BE SOLVED: To obtain a nonwoven fabric excellent not only in filter performances, wiping performances, flexibility, etc., but also in mechanical strength and handleability. SOLUTION: This polyester nonwoven fabric comprises a constituent polyester yarn having 1.22-10.00 average value of orientation parameter (R) obtained by laser Raman spectroscopy and 0.1-5 μm average fiber diameter or a constituent polyester yarn composed of a yarn having 1.7-10.00 orientation parameter (R) value obtained by laser Raman spectroscopy and a yarn having 1.00-1.70 orientation parameter (R) value in the ratio of 8:2 to 2:8 and having 0.1-5 μm average fiber diameter.
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公开(公告)号：JPH11158765A
公开(公告)日：1999-06-15
申请号：JP34218497
申请日：1997-11-27
Applicant: TORAY INDUSTRIES
Inventor： FUTAI KATSUNORI , TAKAHASHI MASAKADO
Abstract: PROBLEM TO BE SOLVED: To obtain nonwoven cloth having excellent drawing and processing properties and excellent in printing property in base paper for heat-sensitive stencil printing obtained by laminating with an undrawn film and drawing by imparting respectively prescribed apparent density and orientation parameter R. SOLUTION: This nonwoven cloth is composed of polyester fibers comprising substantially continuous fiber yarns. In the nonwoven cloth, apparent density of the nonwoven cloth is 0.15-0.22 g/cm , preferably 0.16-0.2 g/cm and an orientation parameter (R) calculated from a laser Raman spectroscopic analysis of polyester fibers is 1.01-1.20, preferably 1.02-1.12. Further, an average fiber diameter of the nonwoven cloth is 5-15 μm, a fabric weight is 60-160 g/m and inherent viscosity (I.V.) is 0.45-0.65. Preferably, the nonwoven cloth is used as a supporter to prepare base paper for heat-sensitive stencil printing.
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公开(公告)号：JPH0860515A
公开(公告)日：1996-03-05
申请号：JP19670594
申请日：1994-08-22
Applicant: TORAY INDUSTRIES
Inventor： FUTAI KATSUNORI , TAKAHASHI MASAKADO , ANDO KATSUTOSHI
Abstract: PURPOSE: To provide the melt-blown nonwoven fabric having a fine fineness, a low weight, a high strength, and an excellent thermally stable property, especially the melt-blown nonwoven fabric excellent as a support material for the raw paper for heat-sensitive utensil printing. CONSTITUTION: This melt-blown nonwoven fabric comprises a semi-crystalline thermoplastic resin having a melting point of >=200 deg.C has an elongation of 5-100% when exhibiting the maximum tensile strength, a thermal shrinkage degree of
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公开(公告)号：JPH03234812A
公开(公告)日：1991-10-18
申请号：JP2477090
申请日：1990-02-02
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO FUTOSHI , MITSUYOSHI TAKEHIKO , FUTAI KATSUNORI
Abstract: PURPOSE:To obtain the subject fiber suitable for a seat belt having excellent light-resistance with specific physical properties comprising a polyester obtained by using a manganese compound, an antimony compound and a germanium compound as polymerization catalysts. CONSTITUTION:The objective fiber is composed of a polyester obtained by using polymerization catalysts comprising a manganese compound containing 35-100ppm, preferably 40-70ppm as manganese metal, an antimony compound (preferably antimony trioxide or antimony pentoxide) containing 30-150ppm, preferably 50-120ppm as antimony metal and a germanium compound (preferably germanium dioxide) containing 5-120ppm, preferably 7-50ppm as germanium metal and satisfies the properties of intrinsic viscosity: [eta] >=0.80, strength: T>=9.1g/d, amorphous orientation: pia=0.65-0.92 and crystallinity: Xc=0.35-0.5.
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Patent Agency Ranking
公开(公告)号：JP2002161433A
公开(公告)日：2002-06-04
申请号：JP2000358203
申请日：2000-11-24
Applicant: TORAY INDUSTRIES
Inventor： OKADA TAIICHI , FUTAI KATSUNORI , OKUMURA YOSHIHARU
IPC: D01F6/62
Abstract: PROBLEM TO BE SOLVED: To provide a polyester fiber having high strength utility factor after twisted and subjected to heat set and not capable of being obtained by conventional public technologies and a method for producing the fiber by which the fiber can be obtained with high productivity. SOLUTION: This polyester fiber comprises a single yarn having at least one or more hollow parts in the fiber axis direction and simultaneously satisfies the following (1) to (4) conditions: (1) strength at break is >=6.0 cN/dtex; (2) elongation at break is 10-20%; (3) percentage of hollowness is 6-40%; and (4) peak temperature of tanδ by a measurement of dynamic viscoelasticity is =1,500 m/min in the method for producing the polyester fiber comprising cooling after carrying out melting extrusion of a polyester having >=0.8 intrinsic viscosity from a discharge spinneret installed to have a slitlike shape so as to form at least the one or more hollow parts in the cross section of the single yarn composing the discharged multifilament, adding an oil agent, then taking off by the take-off roller, drawing after or without once winding, and winding by a winder.
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公开(公告)号：JP2001253314A
公开(公告)日：2001-09-18
申请号：JP2000064785
申请日：2000-03-09
Applicant: TORAY INDUSTRIES
Inventor： TAWARA AKIO , FUTAI KATSUNORI , OKUMURA YOSHIHARU
Abstract: PROBLEM TO BE SOLVED: To impart an energy absorption function conventionally provided only in a part of seats in some models of vehicle to seat belts in all the seats to reduce injury to a human body caused by an impact in an accident by providing a lower-cost seat belt webbing than a conventional mechanical energy absorption mechanism, exerting energy absorption performance equivalent or superior to the conventional mechanism. SOLUTION: This seat belt webbing has an initial yield point elongation =15 kN, an elongation >=10% under 11.1 kN load, and an energy absorption work load >=900 J/m.
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公开(公告)号：JPH07109618A
公开(公告)日：1995-04-25
申请号：JP25664593
申请日：1993-10-14
Applicant: TORAY INDUSTRIES
Inventor： FUTAI KATSUNORI , SATO TAKUJI
Abstract: PURPOSE:To provide a direct polymerization-spinning process which can produce polyester fiber of high polymerization degree and stabilized quality. CONSTITUTION:The molten polyester produced by continuous polycondensation reaction in a polycondensation reactor is continuously transferred into a pressure-reduced zone (for example, a vented extruder, especially kept below 300 torr) and then to a spinning device and directly melt-spun into fibers to inexpensively mass-produce polyester fibers useful as an industrial material.
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公开(公告)号：JPH0742021A
公开(公告)日：1995-02-10
申请号：JP18402793
申请日：1993-07-26
Applicant: TORAY INDUSTRIES
Inventor： FUTAI KATSUNORI , SATO TAKUJI
Abstract: PURPOSE:To provide a method for drawing polyester fiber in which the treatment with a solvent can effectively be carried out in a short time before drawing polyester monofilament and the polyester fiber having a high strength and toughness can continuously and stably be obtained. CONSTITUTION:This method comprises regulating the time (Ti) for subjecting polyester monofilament to the immersion treatment in an aqueous solution of dimethylformamide at 94-98vol.% concentration and 30-80 deg.C to 0.7XTf
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公开(公告)号：JP2001294122A
公开(公告)日：2001-10-23
申请号：JP2000110036
申请日：2000-04-11
Applicant: TORAY INDUSTRIES
Inventor： OKUMURA YOSHIHARU , FUTAI KATSUNORI , TAWARA AKIO
Abstract: PROBLEM TO BE SOLVED: To provide webbing for a seat belt and its manufacturing method having excellent strength and energy absorption performance. SOLUTION: This manufacturing method of the webbing for a seat belt is characterized by weaving by using warp of polyester fiber which is formed of substantially ethylene terephthalate component and simultaneously satisfies inherent viscosity(IV) not less than 0.8, breaking strength (T) not less than 5.3 cN/dtex, breaking elongation (E) 10-25%, and a dry heat contraction percentage (ΔS) at 150 deg.C not less than 8%, and thereafter applying a limited heat contraction process. And the webbing for a seat belt manufactured by this manufacturing method has elongation 20-50% under 11.1 kN load.
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