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    THERMOPLASTIC AROMATIC POLYIMIDE POLYMER
    41.
    发明专利
    THERMOPLASTIC AROMATIC POLYIMIDE POLYMER 失效

    公开(公告)号：JPH01149831A

    公开(公告)日：1989-06-12

    申请号：JP30803287

    申请日：1987-12-04

    Applicant: TORAY INDUSTRIES

    Inventor： SUZUKI ATSUSHI ,  AYA TOSHIHIKO

    IPC: C08G73/10

    Abstract: PURPOSE:To provide the title polyimide polymer having a specific inherent viscosity, excellent in the heat resistance and strength thereof and capable of being injection-molded, by comprising 3,3',4,4'-diphenyl sulfone tetracaboxylic acid dianhydride and a bis(aminophenoxy)benzene. CONSTITUTION:(A) 3,3',4,4'-Diphenyl sulfone tetracarboxylic acid dianhydride and (B) an aromatic diamine having two connected diphenyl ether bonds [e.g., 1,4-bis(4-aminophenoxy)benzene] are mixed in a solvent to form a polyamic acid solution, which is added to a solution containing acetic anhydride, pyridine, etc., for a reaction thereof to provide the objective polymer containing the repeating units of the formula as a main component and having an inherent viscosity of 0.2-5.0dl/g measured under conditions consisting of a concentration of 0.5g/dl and a temperature of 30 deg.C in concentrated sulfuric acid.

    POLYAMIDE-IMIDE RESIN COMPOSITION
    44.
    发明专利
    POLYAMIDE-IMIDE RESIN COMPOSITION 失效

    公开(公告)号：JPS6451461A

    公开(公告)日：1989-02-27

    申请号：JP20861587

    申请日：1987-08-21

    Applicant: TORAY INDUSTRIES

    Inventor： SUZUKI ATSUSHI ,  FUSE TATSUJI ,  AYA TOSHIHIKO

    IPC: C08L79/08 ,  C08K5/20

    Abstract: PURPOSE:To obtain a polyamide-imide resin composition which has improved melt flow characteristics and improved uniformity in melt blending, by using a specified aromatic polyamide-imide resin and an aliphatic amide as its constituents. CONSTITUTION:A resin composition comprising 10-99.9wt.% aromatic polyamide-imide resin (a) having principal repeating structural units of formula I (wherein Ar is a trivalent aromatic residue having a six-membered carbocyclic ring; R is a divalent aromatic or aliphatic residue); 0.1-20wt.% aliphatic amide compound (b) of formula II (wherein R and R are each a 4-20C monovalent aliphatic residue; R is a 1-20C divalent aliphatic residue; X is a group of formula III or IV, or an amide group; n is 0-10); and 0-70wt.% filler (c).

    PRODUCTION OF HEAT-RESISTANT POLYMER DERIVED FROM AROMATIC DIAMINE
    47.
    发明专利
    PRODUCTION OF HEAT-RESISTANT POLYMER DERIVED FROM AROMATIC DIAMINE 失效

    公开(公告)号：JPS638418A

    公开(公告)日：1988-01-14

    申请号：JP14959086

    申请日：1986-06-27

    Applicant: TORAY INDUSTRIES

    Inventor： AYA TOSHIHIKO

    IPC: C08G69/32

    Abstract: PURPOSE:To produce the titled polymer at a low production cost without necessitating particular environmental countermeasure for dust treatment, by reacting wet cake of a specific aromatic diamine with a bifunctional aromatic acidic compound. CONSTITUTION:An aromatic dinitro compound or an aromatic mononitroamino compound is dissolved in a polar solvent inert to inhibit polymerization reaction (e.g. N,N-dimethylacetamide), subjected to catalyst reduction in the presence of a heterogeneous hydrogenation catalyst (e.g. platinum) preferably at 20-200 deg.C, filtered and cooled to precipitate crystal of an aromatic diamine and obtain a wet cake having a solvent content of 3-70wt%. The wet cake and equimolar amount of a bifunctional aromatic acidic compound (e.g. aromatic dicarboxylic acid) are mixed to a polar solvent and made to react with each other e.g. at

    PRODUCTION OF FIBER-REINFORCED HEAT-RESISTANT RESIN COMPOSITION
    48.
    发明专利
    PRODUCTION OF FIBER-REINFORCED HEAT-RESISTANT RESIN COMPOSITION 失效

    公开(公告)号：JPS62240351A

    公开(公告)日：1987-10-21

    申请号：JP8303386

    申请日：1986-04-10

    Applicant: TORAY INDUSTRIES

    Inventor： SAKAI TAKASHI ,  AYA TOSHIHIKO ,  KOTANI NORIYOSHI

    IPC: C08L67/02 ,  C08K9/08 ,  C08L67/00 ,  C08L67/03 ,  C08L71/00 ,  C08L71/08 ,  C08L71/10 ,  C08L71/12 ,  C08L73/00 ,  C08L77/00 ,  C08L77/10 ,  C08L79/08 ,  C08L81/00 ,  C08L81/02 ,  C08L81/06

    Abstract: PURPOSE:To enable the reduction of shear breakage of fiber in kneading, the compounding of fiber at a high concentration and the maintenance of heat- resistance and mechanical properties of resultant composition, by cutting aromatic polyamide fibers bonded with each other using a specific amount of a heat-resistant resin and compounding the fiber to a heat-resistant resin. CONSTITUTION:10-130pts.(wt.) preferably 15-100pts. of an aromatic polyamide fiber is bonded with (A) 100pts.(wt.) of a heat-resistant resin selected from polyarylate, polysulfone, polyether sulfone, polyether imide, polyether ether ketone, polyphenylene sulfide and polyamide imide and (B) 1-25wt%, preferably 1-10wt% heat-resistant resin selected from the group A and soluble in an organic solvent. The bonded fiber is cut to 0.5-12mm, preferably 1-6mm length and kneaded under melting. The fiber of the component B keeps the shape of pellet without forming a cotton-like lump. It can be easily mixed even at a high concentration and uniformly dispersed by kneading under melting.

    THERMOPLASTIC AROMATIC POLYETHERAMIDE COPOLYMER
    49.
    发明专利
    THERMOPLASTIC AROMATIC POLYETHERAMIDE COPOLYMER 失效

    公开(公告)号：JPS62177023A

    公开(公告)日：1987-08-03

    申请号：JP1908886

    申请日：1986-01-30

    Applicant: TORAY INDUSTRIES

    Inventor： KADOI AKIRA ,  NISHIYA YOSHITAKA ,  AYA TOSHIHIKO

    IPC: C08G69/32

    Abstract: PURPOSE:To obtain the titled novel polymer capable of melt forming, with both high thermal stability and fluidity, suitable for films, fibers, laminates, coatings, etc., by copolymerization, in specified proportion, between specific acid component and two or more diamine components. CONSTITUTION:(A) An aromatic diacarboxylic acid dichloride with a molar ratio of the m-phenylene bond to p-phenylene bond regulated to 30-100/70-0 representing structural unit of formula I (R1 is 1-4C alkyl; a is 0-4) is dis solved in, e.g. an organic polar solvent (e.g. N-methylpyrrolidone); following that, (B) pref. 0.9-1.1mol per mole of the component A, of a mixed diamine made up of (i) 2-98mol% of an aromatic diamine representing structural unit of formula II (n is 0 or 1) and (ii) 98-2mol% of a second aromatic diamine representing structural unit of formula III (X is O, S, etc.) is added to perform polymerization at -20-80 deg.C, thus obtaining the objective polymer with a loga rithmic viscosity >=0.25.

    PRODUCTION OF AROMATIC DIAMINE SOLUTION FOR POLYMERIZATION
    50.
    发明专利
    PRODUCTION OF AROMATIC DIAMINE SOLUTION FOR POLYMERIZATION 失效

    公开(公告)号：JPS6284049A

    公开(公告)日：1987-04-17

    申请号：JP22363885

    申请日：1985-10-09

    Applicant: TORAY INDUSTRIES

    Inventor： AYA TOSHIHIKO

    IPC: C07C217/90 ,  C07C67/00 ,  C07C209/00 ,  C07C209/36 ,  C07C211/54 ,  C07C213/00 ,  C07C233/78 ,  C07C313/00 ,  C07C315/04 ,  C07C317/22 ,  C07C317/36

    Abstract: PURPOSE:To produce the titled compound useful as a heat-resistant polymeric material at a remarkably reduced production cost in extremely improved working environment, by reacting a solution of an aromatic diamine with an aromatic carboxylic acid chloride in polar amide solvent. CONSTITUTION:An aromatic diamine solution is produced by carrying out the catalytic reduction of an aromatic dinitro compound or an aromatic mononitroamino compound in a polar amide solvent free from inhibiting activity to the polymerization reaction (e.g. N,N-dimethylformamide) in the presence of a heterogeneous hydrogenation catalyst (e.g. platinum-carbon) and removing by-produced water by distillation. The solution is made to react with an aromatic tricarboxylic acid anhydride monochloride of formula I (Ar is trivalent aromatic residue) and/or an aromatic dicarboxylic acid dichloride of formula II (Ar' is bivalent aromatic residue) in a polar amide solvent at 20-200 deg.C to obtain the objective product.

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