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    1.
    发明专利
    未知

    公开(公告)号：DE3781843D1

    公开(公告)日：1992-10-29

    申请号：DE3781843

    申请日：1987-07-10

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： YAMAYA NORIMASA ,  KOGA NOBUHITO ,  OHTA MASAHIRO ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/12

    Abstract: 1. A thermosetting resin composition which comprises a bismaleimide derivative having the formula (I): and a diamine derivative having the formula (II): wherein R is a divalent radical represented by or where X is selected from a bond, a divalent hydrocarbon radical having 2 carbon atoms, hexafluorinated isopropylidene radical, carbonyl radical, thio radical and sulfinyl radical. A thermosetting resin prepolymer may be obtained by conducting heat-treatment of the thermosetting resin composition at a temperature of 70 to 220 DEG C in the presence or absence of a solvent.

    POLYIMIDE FIBRES
    2.
    发明专利
    POLYIMIDE FIBRES 未知

    公开(公告)号：AU605053B2

    公开(公告)日：1991-01-03

    申请号：AU4444889

    申请日：1989-11-06

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： NAGAHIRO TAIZO ,  OHTA MASAHIRO ,  MORIKAWA SHUICHI ,  KOGA NOBUHITO

    IPC: C08G73/10 ,  D01F6/74

    Abstract: The process includes thermal or chemical imidation of a polyamic acid which has been obtained by reacting a specific diamine and a particular tetracarboxylic dianhydride in the presence of a dicarboxylic anhydride represented by the following formula: wherein Z represents a divalent group selected from monocyclic aromatic groups, fused polycyclic aromatic groups and non-fused polycyclic aromatic groups with aromatic rings bonded together directly or via a crosslinking member. The basic skeletal structure is e

    PRODUCTION PROCESS FOR POLYIMIDE FIBERS
    3.
    发明专利
    PRODUCTION PROCESS FOR POLYIMIDE FIBERS 未知

    公开(公告)号：CA2002147A1

    公开(公告)日：1990-05-07

    申请号：CA2002147

    申请日：1989-11-03

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： NAGAHIRO TAIZO ,  OHTA MASAHIRO ,  MORIKAWA SHUICHI ,  KOGA NOBUHITO ,  TAMAI SHOJI

    IPC: C08G73/10 ,  D01F6/74 ,  D01D5/098

    Abstract: A process for the production of polyimide fibers and polyimide fibers obtained by the process. The process includes thermal or chemical imidation of a polyamic acid which has been obtained by reacting a specific diamine and a particular tetracarboxylic dianhydride in the presence of a dicarboxylic anhydride represented by the following formula: wherein Z represents a divalent group selected from the group consisting of monocyclic aromatic groups, fused polycyclic aromatic groups and non-fused polycyclic aromatic groups with aromatic rings bonded together directly or via a crosslinking member.

    POLYIMIDE RESIN COMPOSITION
    4.
    发明专利
    POLYIMIDE RESIN COMPOSITION 未知

    公开(公告)号：AU579511B2

    公开(公告)日：1988-11-24

    申请号：AU7235687

    申请日：1987-04-08

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： YAMAYA NORIMASA ,  KOGA NOBUHITO ,  BABA KENICHI

    IPC: C08K7/02 ,  C08L79/08 ,  H01B3/30

    Abstract: New polyimide resin compsn. is composed of 100 pts. by wt. of a polyimide having repeat units represented by general formula (I) and 5 to 100 pts. by wt. of fibrous reinforcing material, where Y represents a direct bond, a divalent 1-10C hydrocarbyl gp., a hexafluoroisopropylidene gp., a carbonyl gp., or a oxido gp. R represents a tetravalent 2 or more C aliphatic gp., an alicyclic gp., a monocyclic aromatic gp., a fused polycyclic aromatic gp., or a non-fused cyclic aromatic gp. in which aromatic gps. are linked direct to each other or via a linking member. The polyimide can have an isopropylidene gp. for Y in general formula (1), it can have a direct bond for Y and (II) for R, it can have an isopropylidene gp. for Y and (III) for R, etc. The fibrous reinforcing material can be glass fibres, carbon fibres, potassium titanate fibres or aromatic polyamide fibres.

    7.
    发明专利
    未知

    公开(公告)号：DE69026852D1

    公开(公告)日：1996-06-13

    申请号：DE69026852

    申请日：1990-02-20

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TSUTSUMI TOSHIHIKO ,  MORIKAWA SHUICHI ,  NAKAKURA TOSHIYUKI ,  KOGA NOBUHITO

    IPC: C08J5/06

    Abstract: Provided are carbon-fiber-reinforced polyimide resin compositions having excellent mechanical strength. The compositions are formed of (a) 5-50 parts by weight of carbon fibers, which have been obtained by coating starting carbon fibers at surfaces thereof with an aromatic polysulfone resin and then heating the thus-coated carbon fibers at 300-400 DEG C, and (b) 95-50 parts by weight of a polyimide resin which preferably have recurring units of following formula: wherein X represents a specific divalent radical and R represents a particular tetra-valent radical.

    IC SOCKET
    9.
    发明专利
    IC SOCKET 未知

    公开(公告)号：CA2006389A1

    公开(公告)日：1990-06-27

    申请号：CA2006389

    申请日：1989-12-21

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TSUTSUMI TOSHIHIKO ,  NAKAKURA TOSHIYUKI ,  NAGAHIRO TAIZO ,  MORIKAWA SHUITHI ,  KOGA NOBUHITO

    IPC: C08G73/10 ,  G01R31/28 ,  H01B3/30 ,  H01L21/68 ,  H01R43/24

    Abstract: IC sockets for use in a burn-in test are disclosed. The IC sockets are produced by injection molding of a specific polyimide having an inherent viscosity of 0.35 to 0.65 dl/g and essentially consisting of recurring units represented by the formula (I): (I) wherein X is a radical selected from the group consisting of a bond, divalent hydrocarbon having from 1 to 10 carbon atoms, hexafluorinated isopropylidene etc. and R is a tetravalent radical selected from the group consisting of an aliphatic radical having two or more carbon atoms, cycloaliphatic radical, monoaromatic radical etc.

    PRODUCTION PROCESS FOR POLYIMIDE FIBERS
    10.
    发明专利
    PRODUCTION PROCESS FOR POLYIMIDE FIBERS 未知

    公开(公告)号：AU4444889A

    公开(公告)日：1990-05-10

    申请号：AU4444889

    申请日：1989-11-06

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： NAGAHIRO TAIZO ,  OHTA MASAHIRO ,  MORIKAWA SHUICHI ,  KOGA NOBUHITO

    IPC: C08G73/10 ,  D01F6/74

    Abstract: The process includes thermal or chemical imidation of a polyamic acid which has been obtained by reacting a specific diamine and a particular tetracarboxylic dianhydride in the presence of a dicarboxylic anhydride represented by the following formula: wherein Z represents a divalent group selected from monocyclic aromatic groups, fused polycyclic aromatic groups and non-fused polycyclic aromatic groups with aromatic rings bonded together directly or via a crosslinking member. The basic skeletal structure is e

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