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    PRODUCTION OF NUBUCK-TONE ARTIFICIAL LEATHER
    3.
    发明专利
    PRODUCTION OF NUBUCK-TONE ARTIFICIAL LEATHER 失效

    公开(公告)号：JPH03161576A

    公开(公告)日：1991-07-11

    申请号：JP29555189

    申请日：1989-11-14

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA TATSUO ,  NAKAMURA HIDEO ,  TANAKA MINORU

    IPC: D06N3/00

    Abstract: PURPOSE:To obtain the subject artificial leather by generating ultrathin fiber in surface layer part of nonwoven cloth comprising conjugate fiber able to be made to ultrathin fiber having specific range of apparent fiber density and porosity in the surface layer part, coagulating with applying polymeric elastomer and making conjugate fiber in inner layer part to ultrathin fiber. CONSTITUTION:Web composed of conjugate fiber able to be made to ultrathin fiber of =0.30g/cm , especially >=0.35g/cm apparent fiber density of densely interlaced surface layer part and

    POLYURETHANE MOLDING
    4.
    发明专利
    POLYURETHANE MOLDING 失效

    公开(公告)号：JPS5996118A

    公开(公告)日：1984-06-02

    申请号：JP20453582

    申请日：1982-11-24

    Applicant: TORAY INDUSTRIES

    Inventor： TANAKA MINORU ,  NAKAMURA HIDEO ,  MIZUGUCHI SHIYUNJI

    IPC: C08G18/00 ,  C08G18/28 ,  C08G18/32 ,  C08G18/83 ,  C08L67/00 ,  C08L75/00 ,  C08L75/04 ,  D06M13/02 ,  D06M13/192 ,  D06M15/564 ,  D06N3/14

    Abstract: PURPOSE:A dense, flexible, uniform polyurethane molding of excellent smoothness, prepared by wet-coagulatig a composition comprising an amino group- containing polyurethane elastomer, a polybasic acid (derivative), and a solvent. CONSTITUTION:A polyurethane molding obtained by wet-coagulating a composition comprising (A) a polyurethane elastomer prepared from a polymer diol of a MW>=500, an organic polyisocyanate, and a chain extender, and containing, in the molecule, an amino group containing a nitrogen atom to which no unsaturated carbon is directly attached (e.g., a group of the formula, wherein R - R are each a lower aliphatic group, lower alicyclic group, or lower araliphatic group, or R and R and/or R and R may be bonded together to form a lower alicyclic group or lower alicyclic groups; R and R are each H, a lower aliphatic group, or aromatic group; and R is H, a lower aliphatic group, lower alicyclic group, aromatic group, araliphatic group, or cyano), (B) a compound selected from the group consisting of a polybasic acid (halide), a polybasic acid alkali metal salt, and its ammonium salt, in an amount of 0.8-100 molar equivalent per equivalent of the amino groups of A, and (C) a solvent for the elastomer A.

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