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公开(公告)号：EP1359179A4
公开(公告)日：2004-12-15
申请号：EP01271411
申请日：2001-12-17
Applicant: TORAY INDUSTRIES
Inventor： TACHIBANA YASUTO , NODA MINORU , NISHIMURA TORU
Abstract: A mixture consisting substantially of caprolactam and water is heated for 30 minutes or shorter to obtain a polyamide prepolymer having an amino group content of 0.1 mmol/g or higher and a cyclic oligomer content of 0.6 wt.% or lower. An aqueous caprolactam solution having a water content of 2 to 20 wt.% is heated under pressure at 200 to 330°C for 1 to 30 minutes to obtain a polyamide prepolymer having an amino group content of 0.1 mmol/g or higher and a cyclic oligomer content of 0.6 wt.% or lower.
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公开(公告)号：JP2000256460A
公开(公告)日：2000-09-19
申请号：JP5810099
申请日：1999-03-05
Applicant: TORAY INDUSTRIES
Inventor： TACHIBANA YASUHITO , OKITA SHIGERU , NODA MINORU
Abstract: PROBLEM TO BE SOLVED: To produce a high-quality resin at a high efficiency and a low energy cost by producing a nylon resin having a terminal group concentration in a specified range and removing monomers and oligomers from the nylon resin by using a vertically agitated thin-film evaporator. SOLUTION: Nylon-forming materials are polymerized to produce a nylon resin having a degree of polymerization of 1.0-3.5 (as measured in a 0.01 g/ml sulfuric acid solution at 25 deg.C), a terminal amino concentration and a terminal carboxyl concentration each in the range of 1×10-5 to 12×10-5 mol/g and satisfying the relationships: terminal amino concentration
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公开(公告)号：JPH1017668A
公开(公告)日：1998-01-20
申请号：JP17392496
申请日：1996-07-03
Applicant: TORAY INDUSTRIES
Inventor： MUKAI TSUTOMU , NODA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus adapted so that the abnormal residence of chips and the liquid mixing of extracting water may be satisfactorily prevented, and the discharge of polyamide chips in the form of a mass flow may be made possible without using any inserts such as a flow adjustment spacer and a process for continuously extracting high-quality polyamide chips containing a very small amount of a residual low-molecular-weight substance by using this apparatus. SOLUTION: This invention provides an apparatus for continuously extracting polyamide chips, having a polyamide chip feed port 4 and an extract discharge port 7 on the top of an extraction tower and having a polyamide chip discharge port 5 and an extract feed port 6 at the bottom of the tower and a process for continuously extracting a low-molecular-weight substance from polyamide chips, comprising using the above apparatus in which the lower part of the body of the extraction tower takes the form of an inverse cone.
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公开(公告)号：JPH07313941A
公开(公告)日：1995-12-05
申请号：JP10857294
申请日：1994-05-23
Applicant: TORAY INDUSTRIES
Inventor： NODA MINORU , HIRAO KINJI
Abstract: PURPOSE:To separate fine powder granules and pellets without specifically installing a collision part by making a hopper be cylindrical and conical and making pellets which contain fine powder granules and flow in together with a carrier gas through a supplying pipe come into collision with each other and diffuse in the hopper. CONSTITUTION:This fine powder granule separating and removing apparatus for polymer pellets is an apparatus composed of a cylindrical and conical hopper 3 whose lower side has a conical or pyramidal shape, a supplying pipe 4 to be inserted into the hopper from the upper side of the hopper, and a discharge pipe 5 in the bottom part of the hopper and a gas evacuating pipe 6 installed in the upper part of the hopper and this fine powder granule separating and removing method is a method for which the apparatus is employed.
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公开(公告)号：JPS633321B2
公开(公告)日：1988-01-22
申请号：JP14771479
申请日：1979-11-16
Applicant: TORAY INDUSTRIES
Inventor： ITO NORITSUGU , HARA HARUTAKA , NODA MINORU , ABE YOSHIAKI
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Patent Agency Ranking
公开(公告)号：JP2007002171A
公开(公告)日：2007-01-11
申请号：JP2005186549
申请日：2005-06-27
Applicant: TORAY INDUSTRIES
Inventor： TSUDA YASUNORI , TACHIBANA YASUHITO , NODA MINORU
IPC: C08G69/44
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polyether-ester-amide having excellent appearance and color. SOLUTION: The method for producing the polyether-ester-amide uses a diol compound having ≤1.40 mg-KOH/g acid value as a component (b) when producing the polyether-ester-amide by polymerizing (a) a ≥6C aminocarboxylic acid, a ≥6C lactam or a total ≥6C salt synthesized from a diamine and a dicarboxylic acid, (b) one or more kinds of the diol compounds selected from formulas (I) to (IV) (wherein, R 1 and R 2 are each at least one of an ethylene oxide group and a propylene oxide group; Y is a covalent bond, a 1-6C alkylene group or the like; and X 1 to X 12 are each hydrogen, a 1-6C alkyl group, a halogen group, a sulfonic acid group or a metal salt thereof), and (c) a 4-20C dicarboxylic acid. COPYRIGHT: (C)2007,JPO&INPIT
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公开(公告)号：JP2000017077A
公开(公告)日：2000-01-18
申请号：JP19002198
申请日：1998-07-06
Applicant: TORAY INDUSTRIES
Inventor： MUKAI TSUTOMU , NODA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a continuous processing method and an apparatus for a thermoplastic material to obtain a high-quality thermoplastic material by preventing funnel flow and enabling fluidized mass flow when a thermoplastic material is continuously supplied and processed with a gas. SOLUTION: An apparatus has a funnel-shaped part 2 occupying at least 10% of the capacity of a processing tower under the processing tower 1, a thermoplastic material inlet 3 and a gas exit 8 on the top of the processing tower 1, a thermoplastic material exit 4 at the bottom of the funnel-shaped part 2 and gas supplying inlets 6a and 7a on the side wall of the funnel part which have open ends inside of the side wall. In this case, a thermoplastic material and a gas for processing are continuously supplied from the thermoplastic material inlet 3 and gas supplying inlets 6a and 7a, respectively. The thermoplastic material is continuously processed by subjecting the thermoplastic material and the gas to a counter-flow contact.
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公开(公告)号：JPH09255788A
公开(公告)日：1997-09-30
申请号：JP6869096
申请日：1996-03-25
Applicant: TORAY INDUSTRIES
Inventor： SHIMIZU MASANOBU , NODA MINORU , MIKI MASATO
Abstract: PROBLEM TO BE SOLVED: To obtain a high-quality polymer which can provide pellets of which the dispersion of degrees of polymerization is small within one and the same batch. SOLUTION: This invention provides a process for producing a polycondensate by polycondensation by performing the following steps A and B in the latter stage of the polymerization and discharging the polycondensate from the reactor: the step (A) of keeping the pressure inside the reactor at a subatmospheric pressure for 1min or longer, and the step (B) of keeping the pressure inside the reactor at a superatmospheric pressure in an inert gas atmosphere.
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公开(公告)号：JPS542422A
公开(公告)日：1979-01-10
申请号：JP6731177
申请日：1977-06-09
Applicant: TORAY INDUSTRIES
Inventor： YASUI SHINPEI , ABE YOSHIAKI , KAWAHARA TERUYOSHI , NODA MINORU
IPC: D01F6/90
Abstract: PURPOSE:To obtain the title fibers having improved antistatic properties and little deterioration of color and physical properties using the continuous polymerization and spinning method, by dispersing a small amount of a block polyether-amide in a polyamide in the form of long streaks.
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公开(公告)号：JP2001300210A
公开(公告)日：2001-10-30
申请号：JP2000118598
申请日：2000-04-19
Applicant: TORAY INDUSTRIES
Inventor： SUGATA KOJI , KOMINAMI KAZUHIKO , NODA MINORU
Abstract: PROBLEM TO BE SOLVED: To enhance a liquid recovery ratio by reducing the amount of liquid remaining between the solid particles of a filter cake to the utmost and to recover a solid having a purity as high as possible. SOLUTION: In a method for forming the filter cake to separate the same into a solid and a liquid, a structure for compressing the filter cake has perforations and air is passed through the compressed filter cake though the perforations of the structure.
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