公开(公告)号：JPS62232435A

公开(公告)日：1987-10-12

申请号：JP7512386

申请日：1986-04-01

Applicant: TORAY INDUSTRIES

Inventor： AYA TOSHIHIKO

IPC: C08G69/32

Abstract: PURPOSE:To obtain a melt-moldable thermoplastic polyaramid copolymer having good heat stability and good flow, by reacting an aromatic dicarboxylic acid dichloride with a mixture of two specified aromatic diamines at a specified molar ratio. CONSTITUTION:1mol of an aromatic dicarboxylic acid (A) of formula I (wherein R1 is a 1-4 C alkyl or alkoxy or the like and a is 1-4), 0.1-0.9mol of an aromatic diamine (B) of formula II and 0.9-0.1mol of an aromatic diamine (C) of formula III (wherein R2 is a 1-4 C alkyl or phenyl and b is 1-2) are mixed together so that the sum of components B and C may be about 1mol, and the obtained mixture is reacted. In this way, the titled copolymer essentially consisting of structural units of formulas IV, V and VI, wherein 1mol of the sum of units of formula V and units of formula VI are present per mol of units of formula IV and 0.90-0.1mol of units of formula VI are present per 0.1-0.9mol of units of formula V, and units of formula IV are alternately bonded to units of formula V or VI can be obtained.

公开(公告)号：JPS62209137A

公开(公告)日：1987-09-14

申请号：JP5337586

申请日：1986-03-11

Applicant: TORAY INDUSTRIES

Inventor： YANO KAZUHISA ,  AYA TOSHIHIKO

IPC: C08G73/14

Abstract: PURPOSE:To obtain the titled copolymer outstanding in fluidity and melt formability, suitable for electrical and electronic parts, etc., by copolymerization between an aromatic tricarboxylic acid anhydride and mixed diamine made up of each specific aromatic diamine having aryl ether bond and aramid diamine. CONSTITUTION:(A) 1mol of an aromatic tricarboxylic acid anhydride monochloride and (B) 0.9-1.1mol of a mixed diamine made up of (i) 10-95mol% of an aryl ether bond unit-carrying aromatic diamine corresponding to structural unit of formula II (X is aromatic group; a is 0-2; b is 1-4) and (ii) 90-5mol% of a second aromatic diamine corresponding to structural unit of formula III are dissolved in an organic polar solvent (e.g. N,N-dimethylacetamide), being brought to reaction, pref. at -20-80 deg.C to form a polyamide amic acid. The resulting acid is dehydrated by e.g. liquid phase thermal ring closure process to obtain the objective copolymer constituted by structural units of formulae I (Z is aromatic group), II and III, respectively.

公开(公告)号：JPS62177020A

公开(公告)日：1987-08-03

申请号：JP1764286

申请日：1986-01-29

Applicant: TORAY INDUSTRIES

Inventor： KADOI AKIRA ,  NISHIYA YOSHITAKA ,  AYA TOSHIHIKO

IPC: C08G69/32

Abstract: PURPOSE:To provide the titled melt-formable copolymer of both good thermal stability and fluidity, containing each specified amount of isophthalic acid, terephthalic acid and aromatic diamine residues. CONSTITUTION:The objective copolymer constituted chiefly by essential structural units of (A) formula I (R1 is 1-4C alkyl, alkoxy or halogen, a is integer 1-4), (B) formula II (n is 0 or 1) and (C) formula III, respectively. The amounts of each structural unit is such as to be 1mol of the components B plus C per 1mol of the component A and 0.70-0.02mol of the component C per 0.30-0.98mol of the component B. Furthermore, the molar ratio of the m- phenylene bond to the p-phenylene bond in the component A unit falls between 40/60 and 100/0, and also, the component A and (component B or C) are alternately linked with each other.

公开(公告)号：JPS62151422A

公开(公告)日：1987-07-06

申请号：JP29446885

申请日：1985-12-26

Applicant: TORAY INDUSTRIES

Inventor： YANO KAZUHISA ,  AYA TOSHIHIKO

IPC: C08G65/40

Abstract: PURPOSE:To obtain the titled copolymer, having improved thermal, mechanical and chemical properties and suitable as a material for molded articles and films, etc., in parts for hot water, parts for medical and food uses, etc. CONSTITUTION:A polymer, obtained by mixing (A) 50-99mol% dihalogen compound, e.g. 4,4'-difluorodiphenyl sulfone, etc., and (B) 50-1mol% dihalogen compound, e.g. 1,5-difluoroanthraquinone, etc., with (C) an alkali metal salt, e.g. lithium salt, etc., of a dihydric phenol, e.g. 1,3-bis-(4-hydroxy)benzene, etc., at equimolar ratio based on the components (A) and (B) and reacting them at, e.g. 50-450 deg.C while heating and stirring, consisting of structural units expressed by formula I (Ar is bifunctional aromatic residue) and formula II and having >=0.5 inherent viscosity.

公开(公告)号：JPS61221230A

公开(公告)日：1986-10-01

申请号：JP6159585

申请日：1985-03-26

Applicant: TORAY INDUSTRIES

Inventor： KADOI AKIRA ,  AYA TOSHIHIKO

IPC: C08G73/00 ,  C08G73/14

Abstract: PURPOSE:The titled polymer having a high heat decomposition temperature and a high heat distortion temperature, excellent in the balance of the properties of a molding and suitable for a laminate or the like, obtained by reacting an aromatic tricarboxylic acid anhydride chloride with a specified aromatic diamine. CONSTITUTION:An aromatic tricarboxylic acid anhydride monochloride (e.g., trimellitic anhydride chloride) is reacted with an aromatic diamine of formula I (wherein R1 is a 1-4C alkyl, alkoxy or the like group, Y is formula II or formula III, R2 is a 6-12C aromatic group or a 1-4C fluoroalkyl, R3 is a 1-4C alkyl, a 6-12C aromatic group of the like group, Q is a direct bond, CO, CH2, S or the like, a is 0 or 1-4), e.g., 1,1-bis(p-aminophenyl)-1-phenylethane. In this way, the title polymer comprising alternately bonded recurring structural units of formula IV (wherein z is a trifunctional aromatic group) and structural units of formula V can be obtained.

公开(公告)号：JPS60112759A

公开(公告)日：1985-06-19

申请号：JP21948683

申请日：1983-11-24

Applicant: TORAY INDUSTRIES

Inventor： KADOI AKIRA ,  FUSE TATSUJI ,  AYA TOSHIHIKO

IPC: C07D207/448 ,  C07D207/452

Abstract: PURPOSE:To recover the titled compound easily in producing the titled compound from an aniline and maleic anhydride with a phosphorus oxide and a specific solvent, by distilling a specific amount of the solvent from the reaction mixture after completing the reaction, and separating the phosphorus compound in the liquid phase. CONSTITUTION:A compound of the formula (R1-R5 are H, halogen, 1-6C alkyl, aromatic group, aralkyl, 1-6C alkyl ether, OH, aryloxy, COOH or NO2) is reacted with maleic anhydride or a derivative thereof in the presence of a phosphorus oxide (dehydration and imide ring closing agent) in a solvent capable of dissolving the above-mentioned oxide and the titled compound, and the solvent is then distilled from the reaction mixture. The amounf of the residual solvent is concentrated to

公开(公告)号：JPS6019768B2

公开(公告)日：1985-05-17

申请号：JP1473080

申请日：1980-02-12

Applicant: TORAY INDUSTRIES

Inventor： SUEYOSHI TADAHIRO ,  AYA TOSHIHIKO ,  IZUMI ZENJI

IPC: C08F4/00 ,  C08F2/00 ,  C08F4/28 ,  C08F4/32 ,  C08F212/00 ,  C08F212/04 ,  C08F212/08

公开(公告)号：JPS5998132A

公开(公告)日：1984-06-06

申请号：JP20752882

申请日：1982-11-29

Applicant: TORAY INDUSTRIES

Inventor： KUBO YASUSHI ,  AYA TOSHIHIKO

IPC: C08G73/00 ,  C08G73/14 ,  C08G85/00

Abstract: PURPOSE:To decrease the gel fraction and molecular weight of an aromatic polyamide-imide resin, effectively, and to improve the melt-forming property of the resin, by heating the resin at a specific temperature in a water-containing heterogeneous system in a closed vessel. CONSTITUTION:An aromatic polyamide-imide resin having a molecular structure of e.g. formula, etc., and water (preferably 1-1,000pts.wt. per 100pts.wt. of said resin) are charged in a closed vessel such as autoclave, and heat-treated in the water-containing closed heterogeneous system at 70-300 deg.C, preferably 100- 250 deg.C to degrade the resin preferably to a logarithmic viscosity of 0.3-0.6 (30 deg.C, 0.5g/dl-N-methylpyrrolidone) and a gel-content of

公开(公告)号：JPS5825052B2

公开(公告)日：1983-05-25

申请号：JP13572778

申请日：1978-11-06

Applicant: TORAY INDUSTRIES

Inventor： AYA TOSHIHIKO ,  SASAGAWA KOJI

IPC: C01G51/04

公开(公告)号：JPS5879019A

公开(公告)日：1983-05-12

申请号：JP17574681

申请日：1981-11-04

Applicant: TORAY INDUSTRIES

Inventor： AYA TOSHIHIKO ,  NISHIYA YOSHITAKA

IPC: C08G73/00 ,  C08G73/14

Abstract: PURPOSE:To obtain the titled novel copolymer having high thermal stability and fluidity at 300-400 deg.C and capable of giving a molded article having excellent characteristics by injection molding, by combining two kinds of specific aromatic diamines at a particular composition. CONSTITUTION:The objective copolymer composed of (A) the unit of formulaI (Z is trifunctional aromatic group), (B) the unit of formula II (R is H or methyl), formula III and/or formula IV, and (C) the unit of formula V (X is group of formula VI, formula VII, etc.), wherein the sum of the unit (B) and unit (C) is 1mol per 1mol of the unit (A) and the molar ratio of the unit (B)/unit (C) is (20-96)/(80-4), is prepared, e.g. by polymerizing (D) an aromatic tricarboxylic acid anhydride and (E) a mixed diamine composed of an aromatic diamine such as m-phenylenediamine and an aromatic diamine such as 4,4'-sulfonylbis (p- phenyleneoxy)dianiline, etc. in a polar organic solvent in the presence of a hydrogen chloride scavenger, and subjecting the product to the dehydrative cyclization.