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    MANUFACTURE OF MOLDED ARTICLES OF CARBON FIBER-REINFORCED THERMOPLASTIC RESIN.
    1.
    发明公开
    MANUFACTURE OF MOLDED ARTICLES OF CARBON FIBER-REINFORCED THERMOPLASTIC RESIN. 失效
    制造成形OBJECTS由碳纤维增强热塑性树脂。

    公开(公告)号：EP0042006A4

    公开(公告)日：1983-04-25

    申请号：EP81900012

    申请日：1980-12-08

    Applicant: TORAY INDUSTRIES

    Inventor： KITANAKA MINORU ,  HIRAMATSU TORU ,  IGARASHI TSUYOSHI

    IPC: B32B5/00 ,  B29C43/00 ,  B29C43/02 ,  B29C43/18 ,  B29C51/00 ,  B29C57/00 ,  B29D3/02

    CPC classification number: B29C51/002 ,  B29C70/04 ,  B29K2307/00

    Abstract: A method of manufacturing fiber-reinforced resin articles, the principal object being to manufacture such articles that exhibit excellent properties, at a high level of productivity. The molded articles of carbon fiber-reinforced thermoplastic resin are manufactured by forming a cloth-like body, comprising elongated carbon fibers, into a unitary body with a thermoplastic resin to obtain a composite sheet, shaping the composite sheet into a desired configuration at a temperature higher than the melting point or softening point, but lower than the decomposition temperature, of the thermoplastic resin, and cooling the resulting article Since the composite sheet is shaped into a three-dimensional structure at a suitable temperature, a high-productivity can be achieved in manufacturing fiber-reinforced resin molded articles that are light in weight and possess excellent mechanical properties such as an outstanding Young's modulus and modulus of elasticity.

    CLOTH OF CARBON FIBER
    2.
    发明专利
    CLOTH OF CARBON FIBER 失效

    公开(公告)号：JPS56101917A

    公开(公告)日：1981-08-14

    申请号：JP308880

    申请日：1980-01-17

    Applicant: TORAY INDUSTRIES

    Inventor： HIRAMATSU TOORU ,  YAMAZAKI KATSUMI ,  IGARASHI TSUYOSHI

    IPC: D06M10/00 ,  C01B31/02 ,  D01F9/22 ,  D03D23/00 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D06M101/28 ,  D06M101/40

    Abstract: PURPOSE:To suppress the occurrence of crimps and irregular textures, improve the mechanical strength and moldability and obtain the titled cloth for thin reinforcing materials, by weaving an acrylic fiber bundle in a specific basis weight range, and oxidizing and carbonizing the resultant cloth under heating and specified conditions in the order mentioned. CONSTITUTION:An acrylic fiber bundle, preferably consisting of an acrylonitrile copolymer containing 94wt% or more acrylonitrile in the monomer component, it woven at a basis weight in the range expressed by the formula [W is the basis weight of the cloth of the acrylic fiber g/m ; C is a coefficient of the cloth (texile) design; D is the denier of fiber bundle (units of 1,000 deniers); S is the shrinkage of the fiber bundle on oxidation and carbonization; Y is the yield at the time of carbonization]. The resultant cloth is then oxidized in an oxidizing gaseous atmosphere, e.g. air, at 200-350 deg.C under heating and no load to give a fiber density of 1.35-1.52. The oxidized fiber is subsequently carbonized and graphitized in an inert gaseous atmosphere, e.g. nitrogen, at 700 deg.C or above. EFFECT:No bulking.

    ACRYLIC FLAMEPROOFED FIBER HAVING IMPROVED ABRASION RESISTANCE
    5.
    发明专利
    ACRYLIC FLAMEPROOFED FIBER HAVING IMPROVED ABRASION RESISTANCE 失效

    公开(公告)号：JPS6233824A

    公开(公告)日：1987-02-13

    申请号：JP17049785

    申请日：1985-08-01

    Applicant: TORAY INDUSTRIES

    Inventor： TAKADA TAKASHI ,  IGARASHI TSUYOSHI

    IPC: D01F6/18 ,  D01D5/00 ,  D01F6/38 ,  D01F9/22

    Abstract: PURPOSE:The titled fibers, consisting of oxidized fibers having a specific value of tensile strength and fiber knot strength and a given value or above of limit oxygen index, having improved heat resistance and flame resistance and further usefulness as asbestos substitute fibers and rich in practicality. CONSTITUTION:Acrylic flameproofed fibers obtained by oxidizing ultrahigh- strength fibers having 1.5-4.5g/denier tensile strength and >=1g fiber knot strength in an oxidizing atmosphere, e.g. air, while heating and converting the fibers into oxidized fibers having >=35 limit oxygen index (LOI). The above- mentioned acrylic flameproofed fibers are preferably oxidized fibers prepared from acrylic fibers having >=10g/denier tensile strength and >=2.2g/denier knot strength and obtained by dry-jet and wet spinning as a precursor.

    FLAMEPROOF YARN
    9.
    发明专利
    FLAMEPROOF YARN 失效

    公开(公告)号：JPS61186521A

    公开(公告)日：1986-08-20

    申请号：JP2197085

    申请日：1985-02-08

    Applicant: TORAY INDUSTRIES

    Inventor： IGARASHI TSUYOSHI ,  TAKADA TAKASHI

    IPC: D01F9/22

    Abstract: PURPOSE:The titled yarn having high knot strength, improved spinning properties, wear resistance and flameproofing, obtained by adding a flame-retardant compound having dehydrating carbonization ability to flameproofing yarn of polyacrylonitrile having limited degree of flameproofing. CONSTITUTION:Flameproofing yarn of polyacrylonitrile having limit oxygen index (LOI for short) prescribed by JIS-K7201 of 21-35is blended with >=5wt%, preferably 10-20wt% flame-retardant compound having dehydrating carbonization ablity or organic halogen compound (bromine compound preferably hexabromobenzene, etc.) containing >=0.5 halogenating ratio, to give the aimed yarn. The flameproofing yarn having 21-35 LOI is provided with the flame- retardant compound or the halogen compound by immersing the yarn in a treating solution containing the compound.

    CARBON FIBER REINFORCING COMPOUND MATERIAL
    10.
    发明专利
    CARBON FIBER REINFORCING COMPOUND MATERIAL 失效

    公开(公告)号：JPS5680425A

    公开(公告)日：1981-07-01

    申请号：JP15899979

    申请日：1979-12-07

    Applicant: TORAY INDUSTRIES

    Inventor： KITANAKA MINORU ,  HIRAMATSU TOORU ,  IGARASHI TSUYOSHI

    IPC: B32B5/00 ,  B29C43/00 ,  B29C43/02 ,  B29C43/18 ,  B29C51/00 ,  B29C57/00

    Abstract: PURPOSE:To manufacture the captioned material having an excellent performance with high productivity by shaping a compound sheet made integrally of long carbon fiber foil and thermoplastic resin above a melting point and a softening point of this resin and below its decomposition temperature and subjecting it to cooling process. CONSTITUTION:A compound sheet made integrally of a cloth foil-shaped substance, i.e. a clothlike material consisting of strands of bundled carbon filaments, a mat- shaped substance of continuous long fiber and thermoplastic resin such as styrene resin, acrylic resin, etc., is shaped into a desired form above a melting point or a softening point of this thermoplastic resin and below its decomposition temperature. Next, it is cooled and manufactured into a carbon fiber-reinforced thermoplastic resin formed product. The cloth foil is reinforced by glass fiber, metallic fiber, polyamide fiber, etc. While the thermoplastic resin can be added with various additives such as heat resisting agent, lubricant, coloring agent, short fiber-shaped reinforcing fiber, etc. for property improvement.

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