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    2.
    发明专利
    未知

    公开(公告)号：DE3650656T2

    公开(公告)日：1998-04-30

    申请号：DE3650656

    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

    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.

    3.
    发明专利
    未知

    公开(公告)号：DE69127137D1

    公开(公告)日：1997-09-11

    申请号：DE69127137

    申请日：1991-05-30

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  YAMAGUCHI AKIHIRO ,  OHTA MASAHIRO

    IPC: C08G73/10

    Abstract: A readily melt processable polyimide obtained by reacting diamine represented by the formula: wherein n is an integer of 1 or 2, with 3,3',4,4'-diphenylethertetracarboxylic dianhydride and/or 4,4'-(p-phenylenedioxy)diphthalic dianhydride or a mixture of these tetracarboxylic acid dianhydrides and pyromellitic dianhydride in the presence of phthalic anhydride, is disclosed.

    4.
    发明专利
    未知

    公开(公告)号：DE69117120D1

    公开(公告)日：1996-03-28

    申请号：DE69117120

    申请日：1991-09-06

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  KAWASHIMA SABURO ,  YAMAGUCHI KEIZABURO ,  ISHIHARA YUKO ,  OIKAWA HIDEAKI ,  YAMAGUCHI AKIHIRO ,  KATAOKA TOSHIYUKI

    IPC: C07C225/22 ,  C08G73/10

    Abstract: Disclosed are a novel aromatic diamine; a polyimide comprising 1,3-bis(3-aminobenzoyl)benzene or 4,4 min -bis(3-aminobenzoyl)biphenyl as a diamine component and having recurring structural units represented by the formula (III): wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having from 2 to 27 carbon atoms, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, and noncondensed aromatic radical connected each other with a direct bond or a bridge member, and X is a divalent radical of or ; and a polyimide having a terminal aromatic group which is essentially unsubstituted or substituted with a radical having no reactivity with amines or dicarboxylic acid anhydrides or a composition comprising said polyimide.

    POLYIMIDE
    5.
    发明专利
    POLYIMIDE 未知

    公开(公告)号：CA2028358C

    公开(公告)日：1995-08-22

    申请号：CA2028358

    申请日：1990-10-23

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  OHTA MASAHIRO ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/10 ,  H01L23/29

    Abstract: A polyimide having a high heat-resistance, good processability and recurring structural units of the formula (I): (I) wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having at least two carbon atoms, alicyclic radical, monocyclic aromatic radical, fused polycyclic aromatic radical and polycyclic aromatic radical bonded through a direct bond or a bridge member.

    7.
    发明专利
    未知

    公开(公告)号：DE69012752D1

    公开(公告)日：1994-10-27

    申请号：DE69012752

    申请日：1990-10-24

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  OHTA MASAHIRO ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/10 ,  H01L23/29

    Abstract: A polyimide having a high heat-resistance, good processability and recurring structural units of the formula (I); wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having at least two carbon atoms, alicyclic radical, monocyclic aromatic radical, fused polycyclic aromatic radical and polycyclic aromatic radical bonded through a direct bond or a bridge member.

    HOCHTEMPERATUR-POLYIMIDKLEBSTOFF.
    8.
    发明专利
    HOCHTEMPERATUR-POLYIMIDKLEBSTOFF. 未知

    公开(公告)号：DE3783477D1

    公开(公告)日：1993-02-25

    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.

    POLYIMIDE
    9.
    发明专利
    POLYIMIDE 未知

    公开(公告)号：CA2028358A1

    公开(公告)日：1991-05-18

    申请号：CA2028358

    申请日：1990-10-23

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TAMAI SHOJI ,  OHTA MASAHIRO ,  YAMAGUCHI AKIHIRO

    IPC: C08G73/10 ,  H01L23/29

    Abstract: A polyimide having a high heat-resistance, good processability and recurring structural units of the formula (I); wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having at least two carbon atoms, alicyclic radical, monocyclic aromatic radical, fused polycyclic aromatic radical and polycyclic aromatic radical bonded through a direct bond or a bridge member.

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