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公开(公告)号：US3658766A
公开(公告)日：1972-04-25
申请号：US3658766D
申请日：1970-06-01
Applicant: TORAY INDUSTRIES , SANYO CHEMICAL IND LTD
Inventor： KATO TATSUYA , OKAGAWA CHIKATSU , SUWADA ATARU , OHNO STOYOSHI
CPC classification number: C08K5/521 , Y10S57/901 , Y10S260/16 , Y10S260/19 , C08L77/00
Abstract: A COMPOSITION EXCELLENT IN ANTISTATIC PROPERTIES AND SHAPABILITY, CAPABLE OF BEING SHAPED INTO A FIBER AND THE LIKE, WHICH COMPRISES A COMPOUND OBTAINED BY PHOSPHORIC ESTERIFICATION OF AN ADDITION PRODUCT OF A COMPOUND CONTAINING A CARBONAMIDE GROUP SELECTED FROM THE CLASS CONSISTING OF A MONOMER CONTAINING IN ITS MOLECULE A CARBONAMIDE GROUP AND A POLYAMIDE OLIGOMER, AND A SYNTHETIC LINEAR POLYAMIDE.
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公开(公告)号：JP2002332405A
公开(公告)日：2002-11-22
申请号：JP2001137072
申请日：2001-05-08
Applicant: TORAY INDUSTRIES
Inventor： KATO TATSUYA , MATSUKI MASAKAZU , HORI HIDEO
Abstract: PROBLEM TO BE SOLVED: To provide a titanium oxide particle-containing polyamide resin composition containing a small amount of coarse particles in a polyamide and suitable as a raw material for fibers produced with a low filtration pressure rise during spinning. SOLUTION: This polyamide resin composition is obtained by dispersing 0.16 g of titanium oxide particles in 10 mL of ethylene glycol, then regulating the titanium oxide particles to number of particles in measurement of the particles having >=5 μm particle size using a Thoma's erythrocytometer and adding the titanium oxide particles, preferably an aqueous slurry of the particles in a polymerization process of the polyamide or preferably kneading the particles with a molten polyamide and including the particles in the polyamide.
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公开(公告)号：JP2001200055A
公开(公告)日：2001-07-24
申请号：JP2000011050
申请日：2000-01-19
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MICHIO , KATO TATSUYA , MEGATA HIROYOSHI
Abstract: PROBLEM TO BE SOLVED: To obtain a desired amount of end groups by adding a regulator to regulate the amount of end groups to a polyamide resin after polymerization and to provide a means for obtaining a polyamide resin which has good workability during melt processing and good quality. SOLUTION: This preparation method of a polyamide resin comprises a polymerization step in which a raw material for polymerization is polymerized to obtain a polyamide resin; a step of adding a regulator to regulate the amount of end groups to the polyamide resin obtained in the polymerization step and melt blending the same; and a step of removing unreacted regulator to regulate the amount of end groups and its derivative in the polyamide resin obtained in the step of melt blending such that the amount of the unreacted regulator to regulate the amount of end groups and its derivative is 10 ppm or lower based on the polyamide resin.
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公开(公告)号：JP2000072871A
公开(公告)日：2000-03-07
申请号：JP24697398
申请日：1998-09-01
Applicant: TORAY INDUSTRIES
Inventor： KATO TATSUYA , OTSUBO SATOSHI , HORI HIDEO
Abstract: PROBLEM TO BE SOLVED: To provide a method for preventing a polyamide from gelatinizing. SOLUTION: This polyamide has a proportion of tertiary amides based on the all amide bonds regulated so as to be 2 mol.% or less when the tertiary amide of the polyamide heat-treated at 290 deg.C for 24 hours in a sealed air condition is measured by an NMR. The method for producing the polyamide satisfies the formula T =270 deg.C from the start of the polymerization to the end of the polymerization].
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公开(公告)号：JP2000038445A
公开(公告)日：2000-02-08
申请号：JP20782298
申请日：1998-07-23
Applicant: TORAY INDUSTRIES
Inventor： TACHIBANA YASUHITO , OKITA SHIGERU , KATO TATSUYA
Abstract: PROBLEM TO BE SOLVED: To obtain a polyamide copolymer having excellent mechanical properties, heat resistance and moldability, slightly gelling even holding in molten state such as in polymerization for long time and having excellent heat stability by constituting it of hexamethyleneadipamido units and amide units derived from a lactam and/or an aminocarboxylic acid. SOLUTION: This polyamide copolymer consists of (A) 80-99.5 mol.% hexamethyleneadipamido unit and (B) 0.5-20 mol.% amide unit derived from a lactam (preferably cyclic glycine anhydride or the like) and/or an aminocarboxylic acid. This polyamide satisfies a concentration ratio of carboxy group [COOH] (μmol/g) to amino group [NH2] (μmol/g) represented by the formula: 0.7
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Patent Agency Ranking
公开(公告)号：JP2000038444A
公开(公告)日：2000-02-08
申请号：JP20782198
申请日：1998-07-23
Applicant: TORAY INDUSTRIES
Inventor： TACHIBANA YASUHITO , OKITA SHIGERU , KATO TATSUYA
Abstract: PROBLEM TO BE SOLVED: To obtain a polyamide copolymer having excellent mechanical properties, heat resistance and moldability, slightly gelling even holding in molten state such as in polymerization for long time and having excellent heat stability by constituting it of hexamethyleneadipamido units and amide units composed of a diamine and a dicarboxylic acid. SOLUTION: This polyamide copolymer consists of (A) 80-99,5 mol.% hexamethyleneadipamido unit and (B) 0.5-20 mol.% amide unit composed of at least one kind of diamine of the formula: H2N-(CH2)n-NH2 [(n) is a positive integer except 6] and a dicarboxylic acid. This polyamide satisfies a concentration ratio of carboxy group [COOH] (μmol/g) to amino group [NH2] (μmol/g) represented by the formula: 0.7
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公开(公告)号：JPH11199772A
公开(公告)日：1999-07-27
申请号：JP273198
申请日：1998-01-09
Applicant: TORAY INDUSTRIES
Inventor： KATO TATSUYA
Abstract: PROBLEM TO BE SOLVED: To obtain a polyamide resin compsn. which contains coarse particles in a small amt., exhibits little rise in filtration pressure, and is suitable as a material for fibers. SOLUTION: This compsn. contains a polyamide resin, a water-soluble nonionic aliph. polymer having hydroxyl groups and/or hydroxyl deriv. groups, and titanium oxide and is prepd. by adding a water-soluble nonionic aliph. polymer having hydroxyl groups and/or hydroxyl deriv. groups and titanium oxide to the polymn. system for forming the polyamide resin. This compsn. is used for producing polyamide fibers.
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公开(公告)号：JPH10265664A
公开(公告)日：1998-10-06
申请号：JP6934197
申请日：1997-03-24
Applicant: TORAY INDUSTRIES
Inventor： KATO TATSUYA , HAMAURA TAKESHI , HORI HIDEO
Abstract: PROBLEM TO BE SOLVED: To obtain a composition which can be desirably used as a material capable of forming fibers without encountering frequent yarn break and increased filter pressure by mixing a polyamide as a base with titanium oxide particles classified so that the content of particles having a specified or smaller particle diameter may have a specified or larger value. SOLUTION: A polyamide resin as a base is mixed with titanium oxide particles classified so that the content of particles with a particle diameter of 1 μm or below may be 96 wt.% or above. The method for mixing is desirably one comprising adding a water slurry containing 5-50 wt.% classified titanium oxide particles to the polymerization system during the production of the polyamide or one comprising melt-kneading a classified powdery titanium oxide and a polyamide with a twin-screw extruder. Desirably, the classification of titanium oxide particles is performed by converting titanium oxide as a raw material into a water slurry and subjecting the slurry to gravitational classification (e.g. water elutriation). The titanium oxide used is desirably anatase titanium oxide. The amount of the titanium oxide used is desirably 0.01-60 wt.% based on the polyamide.
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公开(公告)号：JP2002129011A
公开(公告)日：2002-05-09
申请号：JP2000327797
申请日：2000-10-26
Applicant: TORAY INDUSTRIES
Inventor： KATO TATSUYA , HORI HIDEO , MEGATA HIROYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a titanium oxide-containing polyamide of which the dispersibility is excellent and the increase of a filtration pressure in molding is low. SOLUTION: The polyamide has a particle with the diameter of 5 μm or more of 2% or less with respect to the all particle number of titanium oxide with the diameter of 1 μm or more which is observed under a microscope after melt-rolling of the polyamide of 0.1 g on a glass plate. The producing method comprises continuously mixing the titanium oxide by heating and melting so that the melt viscosity of polyamide may be 350 Pa.S or less. The fibre prepared by using the polyamide is also provided.
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公开(公告)号：JP2002030148A
公开(公告)日：2002-01-31
申请号：JP2000218473
申请日：2000-07-19
Applicant: TORAY INDUSTRIES
Inventor： MATSUMI DAISUKE , KATO TATSUYA
Abstract: PROBLEM TO BE SOLVED: To provide a polyamide resin composition of high degree of polymerization, excellent in strengths for an industrial fiber material. SOLUTION: This polyamide resin composition is prepared by solid polymerization of a Nylon 66 containing phosphorus, and has a relative viscosity of not less than 3.2 after solid polymerization, and the difference of the relative viscosities before and after the solid polymerization is not less than 0.9.
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