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公开(公告)号：JPH05112768A
公开(公告)日：1993-05-07
申请号：JP9669292
申请日：1992-04-16
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OIKAWA HIDEAKI , TAMAI MASAJI , IIYAMA KATSUAKI , KAWASHIMA SABURO , ASANUMA TADASHI , YAMAGUCHI TERUHIRO
IPC: C08G73/10 , C09J179/08
Abstract: PURPOSE:To obtain the title adhesive capable of bonding at low temperatures and low pressure and excellent in adhesiveness by incorporating a polyamic acid and/or a polyimide each terminated with a specified compound and comprising specified repeating units. CONSTITUTION:The title adhesive comprises a polyamic acid and/or a polyimide each terminated with an aromatic dicarboxylic acid anhydride of formula I (wherein Z is a bivalent group selected from among monocyclic and fused polycyclic aromatic groups and nonfused polycyclic aromatic groups consisting of aromatic groups bonded to each other directly or through bridging members and comprising repeating units of formula II [wherein Y is a group of formula III or IV (wherein X is a direct bond, -CO- or -O-)].
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公开(公告)号：JPH0348237B2
公开(公告)日：1991-07-23
申请号：JP18822982
申请日：1982-10-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TANABE RYOJI , NEGISHI TAIJI , NOJIRI KENJI , IIYAMA KATSUAKI , NAKANO MAKOTO
IPC: C08G18/00 , C08G18/40 , C08G18/62 , C09J175/00
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公开(公告)号：JPH02178329A
公开(公告)日：1990-07-11
申请号：JP33465788
申请日：1988-12-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OTA MASAHIRO , KAWASHIMA SABURO , IIYAMA KATSUAKI , TAMAI MASAJI , OIKAWA HIDEAKI , YAMAGUCHI TERUHIRO
IPC: C08G73/10
Abstract: PURPOSE:To provide the subject polymer having good thermal stability and excellent moldability as well as the essential excellent characteristics by condensing a specific aromatic diamine comprising a diaminobenzophenone with a tetracarboxylic acid dianhydride under a specified condition. CONSTITUTION:An aromatic diamine comprising 3,3'-diaminobenzophenone of formula I is condensed with a tetracarboxylic acid dianhydride (e.g. ethylenetetracarboxylic acid dianhydride) of formula II (R is a tetravalent group selected from >=2C aliphatic groups, monocyclic aromatic groups, etc.) in a ratio of 0.9-1mol of the compound of formula I per mol of the compound of formula II in the presence of an aromatic monoamine (e.g. aniline) of formula: Z-NH2 (Z is a monovalent group selected from monocyclic aromatic groups, condensed polycyclic aromatic groups, etc.) in an amount of 0.001-1mol per mol of the compound of formula II to provide the objective polymer having units of formula III as the basic skeleton thereof.
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公开(公告)号：JPH02160830A
公开(公告)日：1990-06-20
申请号：JP31508788
申请日：1988-12-15
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OTA MASAHIRO , KAWASHIMA SABURO , IIYAMA KATSUAKI , TAMAI MASAJI , OIKAWA HIDEAKI , YAMAGUCHI TERUHIRO
IPC: C08G73/10
Abstract: PURPOSE:To obtain the title polyimide of improved moldability by imidating a polyamic acid obtained by reacting a specified diamine wit ha tetracarboxylic acid dianhydride in the presence of a dicarboxylic acid anhydride. CONSTITUTION:1mol of a diamine of formula I is reacted with 0.9-1.0mol of a tetracarboxylic acid anhydride of formula II (wherein R is a tetravalent group selected from among a 2C or higher aliphatic group, a cycloaliphatic group, a monocyclic aromatic group, a condensed polycyclic aromatic group and a noncondensed polycyclic aromatic group bonded directly or through bridging members) at 0-250 deg.C for 4-24hr in the presence of a dicarboxylic acid anhydride of formula III (wherein Z is a bivalent group comprising a 1-10C aliphatic group and/or a cycloaliphatic group) to obtain a polyamic acid having repeating units of formula IV as basic skeletons. This polyamic acid is imidated through dehydration by heating to 100-400 deg.C or by reaction with an imidating agent to obtain a polyimide having repeating units of formula V as basic skeletons.
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公开(公告)号：JPH02142827A
公开(公告)日：1990-05-31
申请号：JP29626488
申请日：1988-11-25
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAMAI MASAJI , KATAOKA TOSHIYUKI , IIYAMA KATSUAKI , OTA MASAHIRO , YAMAGUCHI TERUHIRO
IPC: C08G69/32
Abstract: PURPOSE:To obtain an aromatic polyamide excellent in processability and heat resistance and usable for lowly water-absorptive multipurpose applications having repeating units of specified formulas. CONSTITUTION:An aromatic polyamide having repeating units of formula I. It can be extruded or injected because it has thermoplastic properties as well as excellent heat resistance, and has possible multipurpose applications such as a materials for aerospace and aircraft, a material for electric and electronic components, and a material for a high-strength, highly heat-resistant fiber prepared by melt spinning. This aromatic polyamide can be obtained by polymerizing a diamine of formula II with phthaloyl chloride or phthalic acid and/or its derivative.
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Patent Agency Ranking
公开(公告)号：JPH0253858A
公开(公告)日：1990-02-22
申请号：JP20313588
申请日：1988-08-17
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAMAI MASAJI , OTA MASAHIRO , KAWASHIMA SABURO , IIYAMA KATSUAKI , OIKAWA HIDEAKI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To obtain a polysulfone resin composition having improved chemical resistance, mechanical strength and heat resistance besides excellent characteristics of aromatic polysulfone by blending an aromatic polysulfone with a specific amount of a specific polyimide. CONSTITUTION:(A) 100 pts.wt. aromatic polysulfone preferably comprising a repeating unit shown by formula I and/or a repeating unit shown by formula II is blended with (B) =2C aliphatic group, alicyclic, monocyclic aromatic group, etc.) in a dry sate and kneading by using a twin-screw melt extruder, etc., at 280-420 deg.C, preferably 300-400 deg.C.
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公开(公告)号：JPH01279971A
公开(公告)日：1989-11-10
申请号：JP10908088
申请日：1988-05-06
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OIKAWA HIDEAKI , OTA MASAHIRO , KAWASHIMA SABURO , IIYAMA KATSUAKI , TAMAI MASAJI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To improve the chemical resistance, mechanical strength, and heat resistance while retaining the excellent characteristics of an aromatic polysulfone by incorporating a specified polyether-imide into an aromatic polysulfone resin. CONSTITUTION:The title composition is made by mixing 100pts.wt. aromatic polysulfone resin with 1pt.wt. or more to less than 100pts.wt. polyether-imide resin having repeating units of the formula, wherein R is a tetravalent group selected from among a 2C or higher aliphatic group, an alicyclic group, a monocyclic aromatic group, a condensed polycyclic aromatic group, and a noncondensed polycyclic group in which aromatic groups are bound to one another directly or through a crosslinking member. Typical examples of the aromatic polysulfone resin include those having repeating units of formulas II and III.
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公开(公告)号：JPH01221428A
公开(公告)日：1989-09-04
申请号：JP4461988
申请日：1988-02-29
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OTA MASAHIRO , KAWASHIMA SABURO , IIYAMA KATSUAKI , TAMAI MASAJI , OIKAWA HIDEAKI , YAMAGUCHI TERUHIRO
IPC: C08G73/10
Abstract: PURPOSE:To obtain a polyimide which has good heat stability and does not suffer any decrease in moldability even when kept at a high temperature for a long time, by reacting a specified diamine with a specified tetracarboxylic acid dianhydride in the presence of a dicarboxylic acid anhydride and imidating the product. CONSTITUTION:A polyimide having repeating units of formula IV as a basic skeleton is produced by reacting a diamine with a tetracarboxylic acid dianhydride and thermally or chemically imidating the obtained polyamic acid, wherein (a) said diamine is one of formula I, (b) said tetracarboxylic acid dianhydride is one of formula II, (c) said reaction is performed in the presence of a dicarboxylic acid anhydride of formula III, and (d) the amount of said tetracarboxylic acid anhydride used is 0.9-1.0mol. per mol. of said diamine, and the amount of said dicarboxylic acid anhydride used is 0.001-1.0mol. per mol. of said diamine.
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公开(公告)号：JPH01165662A
公开(公告)日：1989-06-29
申请号：JP32287887
申请日：1987-12-22
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OTA MASAHIRO , KAWASHIMA SABURO , IIYAMA KATSUAKI , TAMAI MASAJI , OIKAWA HIDEAKI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To provide an arom. polyamide-imide resin compsn. improved in molding processability and reduced in water absorptivity, by blending an arom. polyamide-imide with a specific amt. of a specific polyimide. CONSTITUTION:100 pts.wt. arom. polyamide-imide (A) (e.g., a polymer having recurring units of formula I) is mixed with 1-100 pts.wt. polyimide having recurring units of formula II (wherein X is a direct bond, a 1-10C divalent hydrocarbon group, hexafluoroisopropylidene, carbonyl, thio, or sulfonyl; Y1-Y4 are each H, lower alkyl, lower alkoxy, chlorine, or bromine; and R is a tetravalent group selected from among at least 2C aliph. groups, arom, groups, etc.) to prepare an arom, polyamide-imide resin compsn. The resin compsn. is suitably used in electric appliances, electronic appliances, etc. The component B is prepd. by reacting an ether-diamine of formula III with a tetracarboxylic acid dianhydride of formula IV and imidating the resulting polyamic acid.
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公开(公告)号：JPH01165661A
公开(公告)日：1989-06-29
申请号：JP32287787
申请日：1987-12-22
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OTA MASAHIRO , KAWASHIMA SABURO , IIYAMA KATSUAKI , TAMAI MASAJI , OIKAWA HIDEAKI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To provide an arom. polyamide-imide resin compsn. improved in molding processability and reduced in water absorptivity, by blending an arom. polyamide-imide with a specified amt. of a polyimide having specific recurring units. CONSTITUTION:100 pts.wt. arom. polyamide-imide (A) (e.g., a polymer having recurring units of formula I) is mixed with 1-100 pts.wt. polyimide (B) having recurring units of formula II (wherein R is a tetravalent group selected from among at least 2C aliph. groups, alicyclic groups, monocyclic arom. groups, condensed polycyclic arom. groups, and non-condensed polycyclic arom. groups having arom. groups linked with each other either directly or through a crosslinking member(s) to prepare an arom. polyamide-imide resin compsn. The resin compsn. is suitably used in electric appliances, electronic appliances, etc. The component B is prepd. by reacting an ether-diamine of formula III with a tetracarboxylic acid dianhydride of formula IV and imidating the resulting polyamic acid.
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