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    PRODUCTION OF POLYAMIDE
    111.
    发明专利
    PRODUCTION OF POLYAMIDE 失效

    公开(公告)号：JPS578224A

    公开(公告)日：1982-01-16

    申请号：JP8335380

    申请日：1980-06-19

    Applicant: TORAY INDUSTRIES

    Inventor： CHIBA KAZUMASA ,  MURAKI TOSHIO

    IPC: C08G69/00 ,  C08G69/26 ,  C08G69/28

    Abstract: PURPOSE:To obtain a higher polyamide excellent in flexibility, low-temperature impact resistance, etc., by feeding an aqueous solution containing a salt between adipic acid and a diamine selected from undecanediamine and dodecanediamine into a polymerization kettle and polymerizing the reaction mizture. CONSTITUTION:A higher polyamide having undecamethylene adipamide units and/or dodecamethylene adipamide units as the principal structural units is obtained by feeding an aqueous solution containing at least 50wt% equimolar salt between at least one diamine selected from the group consisting of undecanediamine and dodecanediamine and adipic acid into a polymerization kettle and solution-polymerizing the solution at 240-300 deg.C under elevated or atmospheric pressure. EFFECT:The above diamine/adipic acid salt has a high solubility in water, so that an operation such as concentration, is unnecessary to feed a high concentration aqueous solution of the salt into a polymerization kettle. Besides, the polyamide thus produced is excellent also in resistance to flex fatigue and dimensional stability.

    POLYAMIDE FILM
    112.
    发明专利
    POLYAMIDE FILM 失效

    公开(公告)号：JPS56151729A

    公开(公告)日：1981-11-24

    申请号：JP5532380

    申请日：1980-04-28

    Applicant: TORAY INDUSTRIES

    Inventor： CHIBA KAZUMASA ,  MURAKI TOSHIO ,  SUGA NAOHIKO

    IPC: C08G69/00 ,  C08G69/36 ,  C08J5/18

    Abstract: PURPOSE:To obtain the titled film having improved heat-sealing strength and transparency and good resistance to pinhole formation and heat, by using a caproamide component, a hexamethylene isophthalamide component, etc. as constituent components. CONSTITUTION:A copolyamide consisting of (A) 95-75wt% caproamide component, (B) 5-25wt% hexamethylene isophthalamide component and (C) 0- 20wt% hexamethylene terephthalamide components as main constituent components is melt formed into a film and if necessary drawn to give the aimed film having a transparence satisfying the formula H

    PRODUCTION OF POLYAMIDE MONOFILAMENT
    113.
    发明专利
    PRODUCTION OF POLYAMIDE MONOFILAMENT 失效

    公开(公告)号：JPS55137214A

    公开(公告)日：1980-10-25

    申请号：JP4461579

    申请日：1979-04-12

    Applicant: TORAY INDUSTRIES

    Inventor： CHIBA KAZUMASA ,  KATOU NOBUO ,  MURAKI TOSHIO

    IPC: D01F6/60 ,  D01F6/80 ,  D01F6/90

    Abstract: PURPOSE:An amide of higher fatty acid is added to a copolyamide consisting of caproamide, hexamethylene isophthalamide and others and they are melt spun to form said monofilaments with high mechanical strength and high transparency even in large deniers. CONSTITUTION:To a copolyamide consisting of (A) (a) 95-75wt% of caproamide ingredient, (b) 5-25wt% of hexamethylene isophthalamide ingredient and (c) 0- 20% of hexamethylene terephthalamide ingredient is added (B) 0.01-2% of at least one of amides, esters and metal salts of higher fatty acids or higher alcohols and they are melt spun. The transparency of the resulting monofilaments is controlled so as to satisfy the equation [T is transparency in %, d is the diameter of the monofilament in mm, ranging from 0.1-4mm.

    RESIN COMPOSITION
    114.
    发明专利
    RESIN COMPOSITION 失效

    公开(公告)号：JPS5478750A

    公开(公告)日：1979-06-23

    申请号：JP14646477

    申请日：1977-12-06

    Applicant: TORAY INDUSTRIES ,  KURARAY CO

    Inventor： CHIBA KAZUMASA ,  MURAKI TOSHIO ,  HIROSE SHIYOUICHI

    IPC: C08L23/00 ,  C08L29/00 ,  C08L29/04 ,  C08L31/04 ,  C08L77/00 ,  C08L77/04 ,  C08L101/00

    Abstract: PURPOSE:A resin composition suitable for continuous molding of packaging materials having improved stretchability, gas barrier properties, hot-water, oil, and impact resistance, consisting of a saponified ethylene-vinyl acetate copolymer and a specific copolyamide. CONSTITUTION:A resin composition consisting of (A) 60-95 wt. % of a saponified ethylene-vinyl acetate copolymer (preferably, an ethylene content of 10-45 wt.% and a saponification degree >=90 %) and (B) 5-40 wt. % of a copolyamide (e.g., nylon 6/6I, etc.) consisting of a) 50-95 wt. % of capramide unit and (b) 5-50 wt. % of an aromatic and/or an alicyclic unit. USE:packaging materials, e.g., films, sheets, tubes, plastic vessels, etc.

    THERMOPLASTIC RESIN COMPOSITION
    118.
    发明专利
    THERMOPLASTIC RESIN COMPOSITION 失效

    公开(公告)号：JPH08208972A

    公开(公告)日：1996-08-13

    申请号：JP28386595

    申请日：1995-10-31

    Applicant: TORAY INDUSTRIES

    Inventor： FUKUMOTO TADAO ,  TAMURA SHINICHI ,  CHIBA KAZUMASA

    IPC: C08K3/38 ,  C08K3/00 ,  C08K5/523 ,  C08L33/18 ,  C08L55/00 ,  C08L55/02 ,  C08L69/00

    Abstract: PURPOSE: To obtain a thermoplastic resin compsn. excellent in flame retardance. impact strength, heat resistance, modability, etc., by compounding a specific resin compsn. with a fluororesin, a metal borate, and a specific compd. CONSTITUTION: This resin compsn. is prepd. which comprises 50-80wt.% arom. polycarbonate resin, 50-20wt.% graft copolymer obtd. by grafting 70-20 pts.wt. monomer mixture comprising 40-90wt.% arom. vinyl monomer (e.g. styrene) and 10-60wt.% vinyl cyanide monomer (e.g. acrylonitrile) onto 30-80 pts.wt. rubbery polymer (e.g. polybutadiene), and 0-48wt.% vinyl copolymer obtd. by copolymerizing 40-90wt.% arom. vinyl monomer with 10-60wt.% vinyl cyanide monomer. 100 pts.wt. above-prepd. resin compsn. is compounded with 0.01-5 pts.wt. fluororesin (e.g. polytetrafluoroethylene), 1-30 pts.wt. metal borate (e.g. zinc borate), and 1-40 pts.wt. phosphoric ester compd. represented by the formula (wherein X is arylene; and R to R are each optionally substd. phenyl), giving the target thermoplastic resin compsn.

    THERMOPLASTIC RESIN COMPOSITION AND MOLDED RESIN PRODUCT
    120.
    发明专利
    THERMOPLASTIC RESIN COMPOSITION AND MOLDED RESIN PRODUCT 失效

    公开(公告)号：JPH07304927A

    公开(公告)日：1995-11-21

    申请号：JP9778594

    申请日：1994-05-11

    Applicant: TORAY INDUSTRIES

    Inventor： TAMURA SHINICHI ,  CHIBA KAZUMASA

    IPC: C08L51/04 ,  C08G59/34 ,  C08L51/06 ,  C08L55/00 ,  C08L55/02

    Abstract: PURPOSE:To obtain a thermoplastic resin compsn. having excellent heat resistance, tensile toughness, rigidity and other properties by mixing an epoxy- modified graft rubber copolymer and an alpha, beta-unsatd. carboxylic acid-modified polyolefin resin together in a particular ratio. CONSTITUTION:A modified graft copolymer (A) prepd. by graft-copolymerizing a diene rubber (e.g. a polybutadiene rubber) with an epoxy-contg. vinyl monomer (e.g. glycidyl acrylate) and other copolymerizable monomer(s) (e.g. styrene), or a modified graft copolymer compsn. manufactured by copolymerizing the graft copolymer with the remaining monomer and a modified polyolefin resin (B) prepd. by grafting 0.1 to 15wt.% alpha,beta-unsatd. carboxylic acid (deriv.) (e.g. meleic anhydride) onto a polyolefin resin (e.g. an ethylene/propylene copolymer) are mixed together in an (A) to (B) wt. ratio of (5:95) to (95:5) to prepare a thermoplastic resin compsn.

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