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    3.
    发明专利
    未知

    公开(公告)号：DE3583703D1

    公开(公告)日：1991-09-12

    申请号：DE3583703

    申请日：1985-01-03

    Applicant: TORAY INDUSTRIES

    Inventor： TAKADA TAKASHI ,  HIRAO KENICHI ,  TANAKA HIROYOSHI ,  SUZUKI MITSUO

    IPC: C04B16/06 ,  C04B20/10 ,  C04B28/02 ,  D01F6/18

    Abstract: High tenacity AN fibers, a process for production thereof, hydraulic substances reinforced with the fibers and a process for production thereof are provided.The high tenacity AN fibers comprise AN polymers composed mainly of AN having an intrinsic viscosity of at least 2.5 and possess degree of crystalline orientation of at least 93% and a tensile strength of at least 10 g/d. The surface of the fibers is smooth.The high tenacity AN fibers are produced by extruding an AN polymer solution having an intrinsic viscosity of at least 2.5 into air or an inert gas through a spinning nozzle, introducing into a coagulating bath, subjecting the coagulated filaments to washing with water, drawing and drying and then, drawing with dry heating at about 160 - 250° C under a drawing tension of about 0.5 g/d or more to make the total drawing magnification more than about 10 times per an initial length of the coagulated filaments.Hydraulic substances reinforced with the high tenacity AN fiber are produced by uniformly dispersing in water the high tenacity AN fibers having applied nonionic or cationic high molecular flocculants thereto, adding anionic high molecular flocculants thereto to flocculate and adsorb cement particles onto the surface of the AN fibers and, subjecting the resulting slurry to paper-making.

    PRODUCTION OF EXTRUSION MOLDED OBJECT FROM HYDRAULIC COMPOSITION
    5.
    发明专利
    PRODUCTION OF EXTRUSION MOLDED OBJECT FROM HYDRAULIC COMPOSITION 失效

    公开(公告)号：JPH0796510A

    公开(公告)日：1995-04-11

    申请号：JP24346193

    申请日：1993-09-30

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA HAJIME ,  TAKADA TAKASHI ,  OTANI MITSUNOBU

    IPC: C04B20/00 ,  B28B3/20 ,  C04B24/00 ,  C04B24/26 ,  C04B28/02 ,  C04B28/04

    Abstract: PURPOSE:To provide an extrusion molded object excellent in shape retention and surface smoothness and having high strength and high toughness from a hydraulic compsn. containing an asbestos-free reinforcing material. CONSTITUTION:When a hydraulic compsn. containing an asbestos-free reinforcing material is subjected to extrusion molding, an emulsion having an island shaped structure formed by mixing two kinds of liquids between which there is surfaces tension difference of 20 dyne/cm or more and containing a polymeric substance soluble in the liquid of an isoland component is added to the hydraulic compsn.

    8.
    发明专利
    失效

    公开(公告)号：JPH05294699A

    公开(公告)日：1993-11-09

    申请号：JP10077992

    申请日：1992-04-21

    Applicant: TORAY INDUSTRIES

    Inventor： TAKADA TAKASHI ,  HONDA YUZURU ,  OTANI MITSUNOBU

    IPC: C04B14/04 ,  C04B14/20 ,  C04B14/38 ,  C04B24/26 ,  C04B24/38 ,  C04B28/02

    Abstract: PURPOSE:To injection-mold the hydraulic composition containing wollastonite in stead of asbestos into the molding having an excellent performance under an extrusion pressure. CONSTITUTION:1-30 pts.wt. of wollastonite, 1-30 pts.wt. of at least one compound selected from talc, mica and chlorite, 0.3-3 pts.wt. of a cellulose detivative, and 0.05-2 pts.wt. of an aliphatic polymer sulfonic acid salt and/or an aliphatic polymer carboxylic acid salt are added to 100 pts.wt. of a hydraulic inorganic substance. Pulp and/or synthetic fiber short fibers may be further added to the mixture. A hydrated cured molded product having high strength, high toughness and excellent explosive breakage resistance can be produced.

    PRODUCTION OF FIBER-REINFORCED INORGANIC MATERIAL
    9.
    发明专利
    PRODUCTION OF FIBER-REINFORCED INORGANIC MATERIAL 失效

    公开(公告)号：JPH0570205A

    公开(公告)日：1993-03-23

    申请号：JP23809091

    申请日：1991-09-18

    Applicant: TORAY INDUSTRIES

    Inventor： TAKADA TAKASHI ,  HONDA YUZURU

    IPC: B28B11/24 ,  B28B11/00 ,  C04B28/02

    Abstract: PURPOSE:To provide the process for production of the fiber-reinforced inorg. material capable of yielding the fiber-reinforced inorg. material which is excellent in dimensional stability in spite of no need for aging at a temp. as high as 150 to 180 deg.C, is low in sp. gr., can exhibit a sufficient effect of reinforcement by reinforcing fibers and has high strength. CONSTITUTION:This process for production includes a stage for preparing an emulsion contg. nonshrinkage cement essentially consisting of Portland cement, acrylic short fibers of 1 to 20mm average length at 0.4 to 40 pts.wt. per 100 pts.wt. this nonshrinkage cement, 20 to 500 pts.wt. water, and 1 to 150 pts.wt. styrene contg. 0.5 to 5wt.% polymn. initiator and 3 to 50wt.% emulsifier and a stage for molding this emulsion and a stage for hardening and aging the resulted molding at

    FIBER-REINFORCED HYDRAULIC INORGANIC MATERIAL AND ITS PREPARATION
    10.
    发明专利
    FIBER-REINFORCED HYDRAULIC INORGANIC MATERIAL AND ITS PREPARATION 失效

    公开(公告)号：JPH0525291A

    公开(公告)日：1993-02-02

    申请号：JP18229391

    申请日：1991-07-23

    Applicant: TORAY INDUSTRIES

    Inventor： TAKADA TAKASHI ,  HONDA YUZURU ,  KOMATSU SHIGENORI

    IPC: C08J5/04 ,  B28B1/30 ,  B29B11/16 ,  B32B5/02 ,  B32B5/24 ,  B32B13/02 ,  B32B13/14 ,  E04B2/94 ,  E04C2/06

    Abstract: PURPOSE:To obtain the subject material free from the occurrence of microcracks and high in strength and toughness by laminating a woven fabric impregnated with a polysulfide-modified epoxy resin on the surface of a hydraulic inorg. material. CONSTITUTION:A woven fabric (of, e.g. a carbon fiber) impregnated with a polysulfide-modified epoxy resin (the main components of which are an amine and a modified epoxy resin having bisphenol skeletons and polysulfide skeletons as well as epoxy groups at both the terminals) is laminated on the surface of a hydraulic inorg. material (e.g. a variety of cement) to obtain a fiber- reinforced hydraulic inorg. material. Methods of such lamination include a method of placing a woven fabric impregnated with an uncured resin on the surface of an inorg. material cast in a frame and then curing the resin. The adhesion of the woven fabric to the hydraulic inorg. material is high, while the resulting product is free from the occurrence of microcracks and high in strength and toughness. Accordingly, the product is suitably used as a construction as well as civil engineering material, examples of which include a wall material, a floor material and a roof material.

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