中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1253 records (took 0.028 seconds)

    5.
    发明专利
    未知

    公开(公告)号：DE69406606T2

    公开(公告)日：1998-04-09

    申请号：DE69406606

    申请日：1994-07-21

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  OKAWA YUICHI ,  YAMASHITA WATARU ,  SAKATA YOSHIHIRO ,  OIKAWA HIDEAKI ,  YAMAGUCHI KEIZABURO ,  ASANUMA TADASHI ,  YAMAGUCHI AKIHIRO ,  MATSUO MITSUNORI

    IPC: C08L71/10 ,  C08G73/10 ,  C08L71/08 ,  C08L79/04 ,  C08L79/08

    Abstract: A polyimide resin composition comprises 1/ &cir& 99.9 SIMILAR 50 parts by weight of polyimide having recurring structural units of the formula and 2/ &cir& 0.1 SIMILAR 50 parts by weight of a polyimide having improved melt flowability and prepared by using 1,3-bis(3-aminophenoxy)benzene or 6,6'-bis(3-aminophenoxy)-3,3,3',3'-tetramethyl-1,1'-spirobiindane as essential diamine component, or polyether pyridine having recurring structural units of the formula: Further, a polyimide based resin composition comprising the polyimide resin composition or a polyimide copolymer obtained by using the above diamines and a fibrous reinforcement are disclosed. These composition have remarkably good processability, excellent heat stability and repeated fatigue characteristics.

    6.
    发明专利
    未知

    公开(公告)号：DE69223823D1

    公开(公告)日：1998-02-12

    申请号：DE69223823

    申请日：1992-02-12

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： ASANUMA TADASHI ,  SASAKI TATEYO ,  NAKANISHI SHOSUKE ,  INOUE TAKEO

    IPC: B29C49/00 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  B32B27/32

    Abstract: A syndiotactic impact-resistant molded article obtained by blow molding (a) a syndiotactic polypropylene homopolymer which has a syndiotactic pentad fraction of 0.6 or more, and/or (b) a syndiotactic polypropylene copolymer which contains 10 % by weight or less of ethylene or alpha-olefin unit having 4 to 20 carbon atoms and a peak intensity observed at about 20.2 ppm in the absorption spectrum of C-NMR measured in a 1,2,4-trichlorobenzene solution of the propylene copolymer is 0.3 or more of a peak intensity attributed to all the methyl groups of the propylene unit, and/or (c) a resin composition containing the syndiotactic propylene homopolymer and an ethylene-propylene copolymer having an ethylene content of 10 to 95 % by weight, or the syndiotactic propylne copolymer and an ethylene-propylene copolymer having an ethylene content of 10 to 95 % by weight, or the syndiotactic propylene copolymer, wherein the amount of the syndiotactic propylene homopolymer or syndiotactic copolymer is from 30 % by weight to 99 % by weight.

    7.
    发明专利
    未知

    公开(公告)号：DE69406606D1

    公开(公告)日：1997-12-11

    申请号：DE69406606

    申请日：1994-07-21

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  OKAWA YUICHI ,  YAMASHITA WATARU ,  SAKATA YOSHIHIRO ,  OIKAWA HIDEAKI ,  YAMAGUCHI KEIZABURO ,  ASANUMA TADASHI ,  YAMAGUCHI AKIHIRO ,  MATSUO MITSUNORI

    IPC: C08L71/10 ,  C08G73/10 ,  C08L71/08 ,  C08L79/04 ,  C08L79/08

    Abstract: A polyimide resin composition comprises 1/ &cir& 99.9 SIMILAR 50 parts by weight of polyimide having recurring structural units of the formula and 2/ &cir& 0.1 SIMILAR 50 parts by weight of a polyimide having improved melt flowability and prepared by using 1,3-bis(3-aminophenoxy)benzene or 6,6'-bis(3-aminophenoxy)-3,3,3',3'-tetramethyl-1,1'-spirobiindane as essential diamine component, or polyether pyridine having recurring structural units of the formula: Further, a polyimide based resin composition comprising the polyimide resin composition or a polyimide copolymer obtained by using the above diamines and a fibrous reinforcement are disclosed. These composition have remarkably good processability, excellent heat stability and repeated fatigue characteristics.

    8.
    发明专利
    未知

    公开(公告)号：DE69030680D1

    公开(公告)日：1997-06-19

    申请号：DE69030680

    申请日：1990-03-05

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OGATA NAOYA ,  ASANUMA TADASHI ,  NAKANISHI TAKEHISA

    IPC: C08G63/81 ,  C08G69/28 ,  C08L67/00 ,  C08L67/02 ,  C08L77/00

    Abstract: The present invention relates to a process for the preparation of a thermoplastic resin composite comprising conducting polycondensation of a monomer material in a solution of an organic solvent containing an organic solvent soluble polymer to form an aromatic condensation polymer which is insoluble in said organic solvent and a thermoplastic resin composite prepared by the process.

    9.
    发明专利
    未知

    公开(公告)号：DE69123287D1

    公开(公告)日：1997-01-09

    申请号：DE69123287

    申请日：1991-05-15

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： ASANUMA TADASHI ,  YAMAMOTO KAZUHIKO

    IPC: C08F255/02

    Abstract: A syndiotactic graft copolymer is here disclosed in which a radical polymerizable unsaturated compound is grafted on a propylene homopolymer or copolymer, and this graft copolymer is obtained by heating a homopolymer having a substantially syndiotactic structure of propylene or a copolymer having a substantially syndiotactic structure of propylene and another alpha -olefin and a radical polymerizable unsaturated compound such as an unsaturated carboxylic acid or an unsaturated silane in the presence of a radical initiator up to the decomposition temperature or more of the radical initiator. This kind of graft copolymer can be used as a composition for adhesion. The graft copolymer in which the radical polymerizable unsaturated compound is a hydrolyzable unsaturated silane can be converted into a crosslinked polymer by heating in the presence of water, and it can also be converted into a water-crosslinkable resin composition by adding various additive thereto.

Patent Agency Ranking