公开(公告)号：DE69312549T2

公开(公告)日：1998-02-05

申请号：DE69312549

申请日：1993-04-07

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMASHITA WATARU ,  SAKATA YOSHIHIRO ,  KATAOKA TOSHIYUKI ,  OKAWA YUICHI ,  OIKAWA HIDEAKI ,  ASANUMA TADASHI ,  MATSUO MITSUNORI ,  ISHIDA TSUTOMU ,  YAMAGUCHI KEIZABURO ,  YAMAGUCHI AKIHIRO

IPC: C07C217/90 ,  C08G73/10 ,  H05K1/00 ,  H05K1/03

Abstract: This invention relates to fluorine containing polyimide, a novel aromatic diamine which has a perfluoroalkyl radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: such as the structural units of the formula Further, the present invention relates to a novel aromatic diamine which has a perfluoro radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The present invention can provide polyimide which has an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.

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.

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.

公开(公告)号：CA2093480A1

公开(公告)日：1993-10-08

申请号：CA2093480

申请日：1993-04-06

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMASHITA WATARU ,  SAKATA YOSHIHIRO ,  KATAOKA TOSHIYUKI ,  OKAWA YUICHI ,  OIKAWA HIDENKI ,  ASANUMA TADASHI ,  MATSUO MITSUNORI ,  ISHIDA TSUTOMU ,  YAMAGUCHI KEIZABURO ,  YAMAGUCHI AKIHIRO

IPC: C07C217/90 ,  C08G73/10 ,  H05K1/00 ,  H05K1/03 ,  C07C225/22 ,  C07C323/31

Abstract: This invention relates to fluorine containing polyimide, a novel aromatic diamine which has a perfluoroalkyl radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: such as the structural units of the formula Further, the present invention relates to a novel aromatic diamine which has a perfluoro radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The present invention can provide polyimide which has an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.

公开(公告)号：DE69312549D1

公开(公告)日：1997-09-04

申请号：DE69312549

申请日：1993-04-07

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMASHITA WATARU ,  SAKATA YOSHIHIRO ,  KATAOKA TOSHIYUKI ,  OKAWA YUICHI ,  OIKAWA HIDEAKI ,  ASANUMA TADASHI ,  MATSUO MITSUNORI ,  ISHIDA TSUTOMU ,  YAMAGUCHI KEIZABURO ,  YAMAGUCHI AKIHIRO

IPC: C07C217/90 ,  C08G73/10 ,  H05K1/00 ,  H05K1/03

Abstract: This invention relates to fluorine containing polyimide, a novel aromatic diamine which has a perfluoroalkyl radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: such as the structural units of the formula Further, the present invention relates to a novel aromatic diamine which has a perfluoro radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The present invention can provide polyimide which has an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.

公开(公告)号：JPH11322928A

公开(公告)日：1999-11-26

申请号：JP12788098

申请日：1998-05-11

Applicant: MITSUI TOATSU CHEMICALS

Inventor： SAKATA YOSHIHIRO ,  OKUMURA TOMOMI ,  SHIBUYA ATSUSHI ,  KUROKI TAKASHI ,  OKAWA YUICHI ,  OIKAWA HIDEAKI

IPC: C08J3/12 ,  C08G73/10 ,  C08L79/08 ,  C09J179/08

Abstract: PROBLEM TO BE SOLVED: To obtain a polyamic acid copolymer which develops excellent adhesiveness and bonding strength even under application conditions including a low bonding temperature and/or a low bonding pressure by subjecting a diamine mixture obtained by combining a group of specified diamine compounds in a specified compositional ratio and an aromatic tetracarboxylic acid dianhydride to a polymerization reaction. SOLUTION: The diamine mixture comprises an aromatic diamine represented by formula I (wherein X is a direct bond, O, CO, or the like; and R1 to R4 and R1 ' to R4 ' are each H, F, Cl, or the like) and an ethylene glycol diamine represented by formula II (wherein (m) is 1-3; and (n) is 0 or 1-3) and/or an alkylenediamine represented by formula III (wherein (k) is 2-12) and has a ratio of the number of moles of the aromatic diamine to that of moles of the other diamines of 0.05-1.0. The aromatic tetracarboxylic acid dianhydride is represented by formula IV (wherein Ar is formula V or the like). In the polymerization, the reaction temperature is -20 to 70 deg.C, and the reaction time is 1-48 hr.

公开(公告)号：JPH06271671A

公开(公告)日：1994-09-27

申请号：JP6164993

申请日：1993-03-22

Applicant: MITSUI TOATSU CHEMICALS

Inventor： SAKATA YOSHIHIRO ,  YAMASHITA WATARU ,  OKAWA YUICHI ,  OIKAWA HIDEAKI ,  ASANUMA TADASHI ,  YAMAGUCHI TERUHIRO

IPC: C08G73/10

Abstract: PURPOSE:To obtain the subject polyimide of high light transmittance, excellent in mechanical strength, dimensional stability and electrical insulation, useful for films, etc., by reaction between each specific diamine, tetracarboxylic dianhydride and aromatic dicarboxylic anhydride at specified proportion. CONSTITUTION:The objective polyimide made up of recurring structural unit of formula IV as the basic skeleton can be obtained by reaction between (A) a diamine compound of formula I [X is O, C(CH)] such as 1,3-bis(3- aminophenoxy)benzene, (B) 2,2-bis(3,4-dicarboxyphenyl)-1,1,1,3,3,3- hexafluoropropane dianhydride of formula II and (C) an aromatic dicarboxylic anhydride of formula III (Y is 6-15C divalent monocyclic aromatic group, condensed polycyclic aromatic group, etc.) such as phthalic anhydride in a molar ratio A/B/C of 1:(0.9-1.0):(0.01-1.0).

公开(公告)号：JPH05178991A

公开(公告)日：1993-07-20

申请号：JP4827692

申请日：1992-03-05

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMASHITA WATARU ,  SAKATA YOSHIHIRO ,  OIKAWA HIDEAKI ,  ASANUMA TADASHI ,  YAMAGUCHI TERUHIRO

IPC: C08G73/10

Abstract: PURPOSE:To obtain the title polyimide which is also excellent in heat resistance and processability by selecting a lowly dielectric, colorless and transparent polyimide having specific repeating structural units. CONSTITUTION:A lowly dielectric, colorless and transparent polyimide comprising repeating structural units of the formula (wherein R is a tetravalent group selected from among 2-27C aliphatic groups, alicyclic groups, monocyclic aromatic groups, fused polycyclic aromatic groups, and non-fused polycyclic aromatic groups comprising aromatic groups mutually bonded directly or through a cross-linking member).

公开(公告)号：JPH0977975A

公开(公告)日：1997-03-25

申请号：JP23711695

申请日：1995-09-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： SAKATA YOSHIHIRO ,  OKAWA YUICHI ,  TAMAI MASAJI ,  YAMAGUCHI TERUHIRO

IPC: C08J5/18 ,  C08G73/10 ,  C08K7/02 ,  C08L79/08 ,  C09J179/08

Abstract: PROBLEM TO BE SOLVED: To obtain a polyimide resin compsn. excellent in adhesive and mechanical properties by adding a fibrous reinforcement to a polyimide obtd. by reacting a specific diamine mixture with a tetracarboxylic dianhydride. SOLUTION: This resin compsn. is prepd. by incorporating 5-100 pts.wt. at least one fibrous reinforcement selected from among carbon fibers, glass fibers, arom. polyamide fibers, and potassium titanate fibers into 100 pts.wt. polyimide obtd. by reacting a diamine mixture comprising 1mol of an arom. diamine represented by formula I (wherein R is a group represented by formula II or III) and 0.10-0.005mol of a diaminosiloxane compd. represented by formula IV (wherein (n) is 0-7) with at least one tetracarboxylic dianhydride selected from among pyromellitic dianhydride, biphenyltetracarboxylic dianhydride, and benzophenonetetrcarboxylic dianhydride. The incorporation of the reinforcement imparts excellent adhesive and mechanical properties to the compsn., from which a polyimide film and an adhesive are obtd.

公开(公告)号：JPH07268097A

公开(公告)日：1995-10-17

申请号：JP6099494

申请日：1994-03-30

Applicant: MITSUI TOATSU CHEMICALS

Inventor： SHIBUYA ATSUSHI ,  SAKATA YOSHIHIRO ,  GOI MASAJI ,  YAMAGUCHI TERUHIRO

IPC: C08G73/10

Abstract: PURPOSE:To obtain a polyimide excellent in thermal oxidation stability, dimensional stability, flame retardancy and electrical insulation properties. CONSTITUTION:This polyimide is the one having a C1 content of 10ppm or below and comprising repeating units represented by the formula (wherein R1 is a 2-27C bivalent group selected from the group consisting of an aliphatic group, a cycloaliphatic group, a monocyclic aliphatic group, a fused polycyclic aromatic group and a nonfused polycyclic aromatic group composed of aromatic groups bonded with each other directly or through bridging members; and R2 is a 2-27C tetravalent group selected from the group consisting of an aliphatic group, a cycloaliphatic group, a monocyclic aliphatic group, a fused polycyclic aromatic group and a nonfused polycyclic aromatic group composed of aromatic groups bonded with other directly or through bridging members).