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    41.
    发明专利
    未知

    公开(公告)号：DE3880082T2

    公开(公告)日：1993-08-26

    申请号：DE3880082

    申请日：1988-11-04

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OHTA MASAHIRO ,  TAMAI SHOJI ,  KAWASHIMA SABURO ,  OIKAWA HIDEAKI ,  YAMAGUCHI AKIHIRO ,  NAKAKURA TOSHIYUKI ,  MASUDA MISAO ,  MARUKO CHIAKI ,  KOBA TOMOHITO ,  SAKAI HIDEO ,  KISHI SATORU

    IPC: C08G73/10 ,  C08J5/04

    Abstract: This invention relates to a method for preparing polyimide having good heat-stability and excellent flowability in a molten state. The polymide is prepared by reacting aromatic diamines such as 4,4 min -bis(3-aminophenoxy)biphenyl, bis[4-(3-aminophenoxy)phenyl] ketone and bis [4-(3-aminophenoxy)phenyl] sulfone; tetracarboxylic dianhydrides such as pyromellitic dianhydride, 3,3 min ,4,4 min -benzophenonetetracarboxylic dianhydride and bis(3,4-dicarboxyphenyl) ether dianhydride; and monoamines such as n-hexylamine, cyclohexylamine, aniline, 4-aminobenzophenone. The molar ratio of tetracarboxylic dianhydride : aromatic diamine : monoamine is 1:(0.9 to 1.0):(0.001 to 1.0). Another invention relates to polyimide composite materials which are excellent in mechanical strengths and processability. The materials contain the polyimide above prepared and fibrous reinforcing materials such as yarn, roving, tow, fabrics, mats and felts of glass fiber, carbon fibers or aromatic polyamide fibers.

    42.
    发明专利
    未知

    公开(公告)号：DE3783477T2

    公开(公告)日：1993-06-17

    申请号：DE3783477

    申请日：1987-02-20

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  OHTA MASAHIRO ,  KAWASHIMA SABURO ,  OIKAWA HIDEAKI ,  OHKOSHI KOUJI ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/10 ,  C09J179/08 ,  B32B27/04

    Abstract: This invention discloses high-temperature adhesives having a good light-transmittance and excellent high-temperature flowability which comprises polyimide having recurring units represented by the following formula (I) (where R is a tetra-valent radical selected from the group consisting of aliphatic radical having not less than two carbons, cyclo-aliphatic radical, monoaromatic radical, condensed polyaromatic radical, and non condensed polyaromatic radical wherein aromatic radicals are mutally connected with a bond or a crosslinking function).The ployimide is obtained by preparing polyamic acid through the reaction of 2,2-bis[4-(3-aminophenoxy)phenyl]-1,1,1,3,3,3,-­hexafluoropropane as a diamine component with tetracarboxylic dianhydride such as pyromellitic dianhydride, 3,3ʹ,4,4ʹ-­biphenyltetracarboxylic dianhydride, bis(3,4-dicarboxyphenyl) ether dianhydride and 3,3ʹ4,4ʹ-benzophenonetetracarboxylic dianhydride, and further conducting the ring-closing reaction of resultant polyamic acid by dehydration.

    43.
    发明专利
    未知

    公开(公告)号：DE68903181D1

    公开(公告)日：1992-11-19

    申请号：DE68903181

    申请日：1989-03-13

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OHTA MASAHIRO ,  IIYAMA KATSUAKI ,  KAWASHIMA SABURO ,  TAMAI SHOJI ,  OIKAWA HIDEAKI ,  YAMAGUCHI AKIHIRO

    IPC: C08L79/08

    Abstract: This invention relates to molding resin compositions, and more particularly relates to polyimide resin compositions having markedly improved molding ability in addition to excellent high temperature stability, chemical resistance and mechanical strength. The polyimide resin compositions of this invention comprises 99.9 to 50.0% by weight of the polyimide and 0.1 to 50.0% by weight of polyphenylene sulfide and/or aromatic polysulfone and/or aromatic polyetherimide high-temperature engineering polymer. The polyimide consists essentially of recurring units of the following formula: y

    POLYIMIDE
    44.
    发明专利
    POLYIMIDE 未知

    公开(公告)号：AU580468B2

    公开(公告)日：1989-01-12

    申请号：AU6867987

    申请日：1987-02-11

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OIKAWA HIDEAKI ,  OHTA MASAHIRO ,  KAWASHIMA SABURO ,  TAMAI SHOJI ,  SONOBE YOSHIHO ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/00 ,  C08G73/10 ,  C09J5/06 ,  C09J179/08 ,  C09J3/16

    Abstract: This invention relates to a novel polyimide and describes method of its preparation, adhesives of the polyimide and the method for their application.The polyimide has recurring units of the formula(where R is a tetra-valent radical selected from the group consisting of aliphatic radical having not less than two carbons, cyclo-aliphatic radical, monoaromatic radical, condensed polyaromatic radical, and non condensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function).The polyimide can be prepared by reacting 2,6-bis(3--amino-phenoxy)pyridine with tetracarboxylic dianhydride in an organic solvent and imidizing resultant polyamic acid.Various tetracarboxylic dianhydrides can be used and particularly preferred are pyromellitic dianhydride and 3,3',4,4'--benzophenonetetracarboxylic dianhydride.

    POLYIMIDE
    45.
    发明专利
    POLYIMIDE 未知

    公开(公告)号：AU580183B2

    公开(公告)日：1989-01-05

    申请号：AU6122286

    申请日：1986-06-30

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OHTA MASAHIRO ,  KAWASHIMA SABURO ,  SONOBE YOSHIHO ,  TAMAI SHOJI ,  OIKAWA HIDEAKI ,  OHKOSHI KOUJI ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/10 ,  C09J179/08 ,  C09J3/16

    Abstract: Polyimide having repeating units of the following formula (I) and its polyamic acid precursor having repeating units of the following formula (II) are disclosed; (where Y is a radical selected from the group consisting of a bond, divalent hydrocarbon having 1 to 10 carbons, hexafluorinated isopropylidene, carbonyl, thio, sulfinyl, sulfonyl and oxide, and R is a tetra-valent radical selected from the group consisting of aliphatic radical having 2 and more carbons, cyclo-aliphatic radical, monoaromatic radical, condensed polyaromatic radical, and non-condensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function). Typical examples of polyimide and polyamic acid include where Y is thio radical and R is Y is a bond and R is III or IV, and Y is isopropylidene radical and R is IV. The polymers can be prepared from corresponding diamine and tetracarboxylic acid dianhydride. Polyimide or polyamic acid of this invention is excellent for high-temperature adhesive.

    POLYIMIDE AND HIGH-TEMPERATURE ADHESIVE THEREOF
    46.
    发明专利
    POLYIMIDE AND HIGH-TEMPERATURE ADHESIVE THEREOF 未知

    公开(公告)号：AU1856588A

    公开(公告)日：1989-01-05

    申请号：AU1856588

    申请日：1988-06-30

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  OHTA MASAHIRO ,  KAWASHIMA SABURO ,  IIYAMA KATSUAKI ,  OIKAWA HIDEAKI ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/10 ,  C08L79/08 ,  C09J179/08 ,  H01J37/317 ,  H01L21/265 ,  C09J3/16

    Abstract: This invention relates to a novel polyimide which is high-temperature resistant and capable of being molded in a fused state. This invention also relates to a high-temperature adhesive using the polyimide. The polyimide consists essentially of recurring units of the formula: where R is a tetra-valent radical selected from the group consisting of an aliphatic radical having 2 or more carbon atoms, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, and non-condensed polyaromatic radical wherein aromatic radicals are linked to one another directly or via a bridge member. The polyimide can be prepared by reacting bis[4-(4-(4-aminophenoxy)phenoxy)phenyl] sulfone with a tetracarboxylic dianhydride in an organic solvent and imidizing the resultant polyamic acid. Various tetracarboxylic dianhydrides can be used and preferred dianhydride are pyromellitic dianhydride, 3,3 min ,4,4 min -benzophenonetetracarboxylic dianhydride, bis(3,4-dicarboxyphenyl) ether dianhydride, 3,3 min ,4,4 min -biphenyltetracarboxylic dianhydride, and 4,4 min -(p-phenylenedioxy)diphthalic dianhydride.

    POLYIMIDE RESIN COMPOSITION
    47.
    发明专利
    POLYIMIDE RESIN COMPOSITION 未知

    公开(公告)号：AU1736388A

    公开(公告)日：1988-12-08

    申请号：AU1736388

    申请日：1988-06-03

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OHTA MASAHIRO ,  KAWASHIMA SABURO ,  TAMAI SHOJI ,  OIKAWA HIDEAKI ,  YAMAGUCHI AKIHIRO ,  IIYAMA KATSUAKI

    IPC: C08L79/08

    Abstract: Resin composition composed of 99.9 to 50 % by weight of a polyimide having a repeating unit of the formula as defined below and 0.1 to 50 % by weight of an aromatic polyamideimide are improved in heat resistance and mechanical strength and have the inherent properties of polyimide; where X indicates a direct bond or is -S- or and R is a tetravalent radical selected from the group consisting of aliphatic radicals having at least 2 carbon atoms, cycloaliphatic radicals, monocycloaromatic radicals and condensed polycycloaromatic radicals, and uncondensed polycycloaromatic radicals including aromatic radicals interconnected directly or through a cross-linkage.

    49.
    发明专利
    未知

    公开(公告)号：FR2519631B1

    公开(公告)日：1986-04-04

    申请号：FR8300403

    申请日：1983-01-12

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITU ,  KAWASHIMA SABURO ,  YAMAGUCHI AKIHIRO

    IPC: C07C309/40 ,  C07C97/10

    Abstract: 3,3'- or 3,4'-diamino benzophenone is prepared by catalytically reducing and dehalogenating, in the presence of a reduction catalyst and a dehydrohalogenation agent, a benzophenone compound or benzophenone compounds of the general formula in which X is a halogen atom at position 2 or 4 of the benzene ring and Y is hydrogen or a halogen atom and in which the nitro group is at position 3' or 4' of the benzene ring if Y is hydrogen, while Y is at position 4' and the nitro group is at position 3' of the benzene ring if Y is a halogen atom.

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