-
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-)].
-
公开(公告)号：JPH0578476A
公开(公告)日：1993-03-30
申请号：JP2920892
申请日：1992-02-17
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KATAOKA TOSHIYUKI , OIKAWA HIDEAKI , TAMAI MASAJI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To obtain a melt-moldable polyamide resin having excellent heat- resistance and thermal stability by carrying out the polycondensation reaction of a specific diamine and an aromatic dicarboxylic acid in the presence of a dehydrohalogenation agent in an organic solvent. CONSTITUTION:The objective aromatic polyamide resin of formula II (X is halogen; Z is condensed polycyclic aromatic group; (n) is 1-1,000) is produced by the polycondensation of (A) 1,3-bis(4-aminophenoxy)-5-halogenobenzene and/or 1,3-bis(3-aminophenoxy)-5-halogenobenzene of formula I and (B) an aromatic dicarboxylic acid dihalide such as aromatic dicarboxylic acid dichloride in the presence of (C) a dehydrohalogenation agent such as trimethylamine in an organic solvent such as N,N-dimethylformamide at
-
公开(公告)号：JPH059316A
公开(公告)日：1993-01-19
申请号：JP16424491
申请日：1991-07-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OKAWA YUICHI , TAMAI MASAJI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To readily carry out surface treatment at a low cost and remarkably improve adhesion by dipping a specific polyimide resin composition in a treating solution of a specific composition. CONSTITUTION:A polyimide resin composition containing a polyimide resin having recurring units expressed by the formula is dipped in a treating solution composed of 1.5-9.0 pts.wt. alcohol such as methanol, ethanol, propanol, butanol, pentanol and/or hexanol, 0.3-1.5 pts.wt. inorganic base such as sodium hydroxide, potassium hydroxide, lithium hydroxide, magnesium hydroxide, calcium hydroxide and/or barium hydroxide and 0.05-1.0 pt.wt. organic base such as hydrazine hydrate, ethylenediamine, propylenediamine and/or hexamethylenediamine based on 1 pt.wt. water. Thereby, surface treatment is readily carried out.
-
公开(公告)号：JPH04331231A
公开(公告)日：1992-11-19
申请号：JP12378291
申请日：1991-05-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAMAI MASAJI , OTA MASAHIRO , YAMAGUCHI TERUHIRO
IPC: C08G73/10
Abstract: PURPOSE:To obtain a melt-moldable polyimide having excellent heat and chemical resistances and good transparency by reacting a specified diamine with a specified tetracarboxylic acid dianhydride in the presence of phthalic anhydride. CONSTITUTION:A diamine component comprising a diamine of formula I (wherein (n) is 1 or 2) or a mixture thereof is reacted with a tetracarboxylic acid dianhydride component comprising 3,3',4,4'-diphenyl ether tetracarboxylic dianhydride or 4,4'-(p-phenylenedioxy)diphthalic dianhydride in the presence of phthalic anhydride to produce a polyamic acid having 0.001-1.0mol, per mol of the diamine component, of phthalic anhydride. The obtained polyamic acid is thermally or chemically imidized to obtain a polyimide comprising repeating structural units of formula III (wherein X is a tetravalent group of formula IV or V; and (n) is 1 or 2) and terminated with a bivalent aromatic group derived from phthalic anhydride of formula II.
-
公开(公告)号：JPH04331228A
公开(公告)日：1992-11-19
申请号：JP41556190
申请日：1990-12-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KATAOKA TOSHIYUKI , OIKAWA HIDEAKI , KOGA NOBUSHI , TAMAI MASAJI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To obtain an aromatic polyamide excellent in heat resistance, processability and low water absorptivity by polycondensing a specified aromatic diamine with an aromatic dicarboxylic acid in an organic solvent, and to obtain a resin composition improved in mechanical strengths and dimensional stability by mixing the aromatic polyamide with a fibrous reinforcement. CONSTITUTION:2,2-Bis[4-(4-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluorop ropane of formula II and/or 2,2-bis[4-(3aminophenoxy)phenyl]-1,1,1,3,3,3- hexafluoropropane of formula II are polycondensed with an aromatic dicarboxylic acid dihalide at 60 deg.C or below in an organic solvent in the presence of a dehydrohalogenating agent to give an aromatic polyamide represented by formula I (wherein X is a condensed polycyclic aromatic group or the like; and (n) is an integer of 1-1000).
-
Patent Agency Ranking
公开(公告)号：JPH0316964B2
公开(公告)日：1991-03-06
申请号：JP20074583
申请日：1983-10-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAMAI MASAJI , YAMAGUCHI KEISABURO , YAMAGUCHI TERUHIRO , OONUMA YASUO
IPC: C08G73/00 , C07C67/00 , C07C231/00 , C07C231/02 , C07C233/36 , C07C233/43 , C08G73/10
-
公开(公告)号：JPH0331323A
公开(公告)日：1991-02-12
申请号：JP16365789
申请日：1989-06-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OTA MASAHIRO , KATAOKA TOSHIYUKI , TAMAI MASAJI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To obtain the subject new melt moldable polyamide, expressed by specific recurring units, excellent in heat resistance and processability with low water absorptivity and useful as a substrate for space aircraft, equipment and materials for electrical and electronic parts, raw material for heat-resistant fiber, etc. CONSTITUTION:The objective polyamide expressed by formula I (the positions of the two carbonyl groups are the o-, m- or p-positions of the benzene nuclei; n is 1-1000). Furthermore, the aforementioned polyamide is produced by polymerizing bis[4-{4-(4-aminophenoxy)phenoxy}phenyl]sulfone expressed by formula II with a benzenedicarboxylic acid, such as isophthalic acid, a benzenedicarbonyl chloride, such as terephthaloyl dichloride, and a benzenedicarboxylic acid derivative, such as dimethyl terephthalate, in a solvent.
-
公开(公告)号：JPH02199124A
公开(公告)日：1990-08-07
申请号：JP1624789
申请日：1989-01-27
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OTA MASAHIRO , TAMAI MASAJI , YAMAGUCHI TERUHIRO
Abstract: PURPOSE:To obtain the title polyimide which is excellent in mechanical, thermal and electrical properties, etc., and free from lowering in moldability when kept at high temperatures for a long time by reacting bis(3-aminophenyl) sulfone with a tetracarboxylic acid dianhydride under specified conditions. CONSTITUTION:The title polyimide having a basic skeleton comprising repeating units of formula II is obtained by thermally or chemically imidating a polyamic acid obtained by reacting a tetracarboxylic acid dianhydride of formula I [wherein R is a tetravalent group selected from among a 2C or higher aliphatic group, a cyclic cycloaliphatic group, a monocyclic aromatic group and a condensed polycyclic aromatic group) with 0.9-1.0mol, per mol or the dianhydride, of bis(3-aminophenyl) sulfone in the presence of 0.001-1.0mol, per mol of the dianhydride, of an aromatic monoamine of the formula Z-NH2 [wherein Z is a monocyclic aromatic group or a (non)condensed polycyclic aromatic group] (e.g. aniline).
-
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.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
253
records
(took 0.026 seconds)
