公开(公告)号：JPS63304055A

公开(公告)日：1988-12-12

申请号：JP13820487

申请日：1987-06-03

Applicant: MITSUI TOATSU CHEMICALS

Inventor： OTA MASAHIRO ,  KAWASHIMA SABURO ,  TAMAI MASAJI ,  OIKAWA HIDEAKI ,  YAMAGUCHI TERUHIRO

IPC: C08L79/08 ,  C08L81/02 ,  C08L81/04

Abstract: PURPOSE:To obtain the titled composition having excellent heat-resistance, chemical resistance, mechanical strength, moldability, etc., by compounding a specific polyimide with a specific amount of a polyphenylene sulfide. CONSTITUTION:The objective composition is produced by compounding (A) 99.9-50wt.% of a polyimide having a recurring unit expressed by formula I (R is 4-valent group selected from non-condensed polycyclic aromatic group linked with >=2C aliphatic group, cycloaliphatic group, monocyclic aromatic group, etc., directly or through a crosslinking member) with (B) 0.1-50wt.% of a polyphenylene sulfide expressed by formula II.

公开(公告)号：JPS63304054A

公开(公告)日：1988-12-12

申请号：JP13820387

申请日：1987-06-03

Applicant: MITSUI TOATSU CHEMICALS

Inventor： OTA MASAHIRO ,  KAWASHIMA SABURO ,  TAMAI MASAJI ,  OIKAWA HIDEAKI ,  YAMAGUCHI TERUHIRO

IPC: C08L79/08 ,  C08L81/00 ,  C08L81/06

Abstract: PURPOSE:To obtain the titled composition having excellent heat-resistance, chemical resistance, mechanical strength, moldability, etc., by compounding a specific polyimide with a specific amount of an aromatic polysulfone. CONSTITUTION:The objective composition is produced by compounding (A) 99.9-50wt.% of a polyimide having a recurring unit expressed by formula I (R is 4-valent group selected from non-condensed polycyclic aromatic group linked with >=2C aliphatic group, cycloaliphatic group, etc., directly or through a crosslinking member) with (B) 0.1-50wt.% of an aromatic polysulfone having recurring unit expressed by formula II and/or formula II.

公开(公告)号：JPS62197426A

公开(公告)日：1987-09-01

申请号：JP3839086

申请日：1986-02-25

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAMAI MASAJI ,  KAWASHIMA SABURO ,  OOTA MASAHIRO ,  OIKAWA HIDEAKI ,  OGOSHI KOJI ,  YAMAGUCHI TERUHIRO

IPC: C08G73/10 ,  C08J3/16 ,  C09J179/08

Abstract: PURPOSE:To obtain an adhesive having a strong bonding force and excellent heat resistance, by using a polyamic acid or a polyimide having specified repeating units as a component. CONSTITUTION:An adhesive comprising a polymer having repeating units of formula I (wherein X is formula II or III and 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 consisting of aromatic groups linked with each other directly or through a bridging member). Said polymer can be usually produced by reacting 1,4-bis[4-(3-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropane with a tetracarboxylic acid dianhydride in an organic solvent.

公开(公告)号：JPS61291670A

公开(公告)日：1986-12-22

申请号：JP13207185

申请日：1985-06-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAMAI MASAJI ,  KAWASHIMA SABURO ,  SONOBE YOSHIO ,  OOTA MASAHIRO ,  OIKAWA HIDEAKI ,  YAMAGUCHI TERUHIRO

IPC: C08G73/00 ,  C08G73/10 ,  C09J179/08

Abstract: PURPOSE:To titled novel adhesive, consisting of a polymer having specific repeating units and capable of exhibiting powerful adhesive strength without deteriorating the heat resistance and keeping high adhesive strength particularly even at a high temperature. CONSTITUTION:An adhesive consisting of a polymer having repeating units expressed by formula I (Y is formula II or III). The polymer having the repeating units expressed by formula I can be obtained by polycondensing 1, 3-bis (3-aminophenoxy) bezene with 3, 3', 4' 4'-benzophenonetetracarboxylic acid dianhydride and,as necessary, cyclizing the resultant polycondensate through dehydration.

公开(公告)号：JPS61197546A

公开(公告)日：1986-09-01

申请号：JP3653585

申请日：1985-02-27

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEISABURO ,  YOSHIKAWA YUKIHIRO ,  TAMAI MASAJI ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAGUCHI TERUHIRO

IPC: C07B61/00 ,  B01J31/00 ,  B01J31/02 ,  C07C67/00 ,  C07C201/00 ,  C07C205/38

Abstract: PURPOSE:To obtain the titled compound useful as a raw material for agricultural chemicals and drugs easily in high purity and in high yield, by subjecting inexpensive meta-dinitrobenzene to self-condensation reaction in the presence of a base and a catalytic amount of meta-nitrophenol in an aprotic polar solvent. CONSTITUTION:Meta-nitrobenzene is subjected to self-condensation reaction in the presence of a base (e.g., potassium carbonate, potassium hydroxide, NaOH, etc.) and a catalytic amount of meta-nitrophenol in an aprotic polar solvent (e.g., 1,3-dimethyl-2-imidazolidinone, hexamethylphosphoramide, etc.) to give 3,3'-dinitrodiphenyl ether. Since this method has high conversion ratio to the aimed substance and high selectivity, it is economical. This process has further easy purification, and is industrially preferable.

公开(公告)号：JPS6094425A

公开(公告)日：1985-05-27

申请号：JP20074583

申请日：1983-10-28

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAMAI MASAJI ,  YAMAGUCHI KEISABUROU ,  YAMAGUCHI TERUHIRO ,  OONUMA YASUO

IPC: C08G73/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/02 ,  C07C233/36 ,  C07C233/43 ,  C08G73/10

Abstract: PURPOSE:To obtain both novel polyamic acid and polyimide of high heat resistance transparency and processability, with good balance in these propenties, by the reaction between aminobenzylamine and tetracarboxylic dianhydride. CONSTITUTION:(A) An aminobenzylamine (pref. m-aminobenzylamine) and (B) tetracarboxylic dianhydride of formula I (e.g., promellitic dianhydride) are made to react, for example, in an organic polar solvent (e.g. N-methyl-2-pyrrolidone) to obtain the objective polyamic acid having at least one sort of recurring unit of formula II (X is of formula III; Y is of formula IV), followed by heating said polyamic acid to effect dehydration to obtain the other objective polyimide.

公开(公告)号：JPH09176265A

公开(公告)日：1997-07-08

申请号：JP33663395

申请日：1995-12-25

Applicant: MITSUI TOATSU CHEMICALS

Inventor： FUKUMURA KOUKI ,  MIZUTA HIDEKI ,  TAMAI MASAJI ,  NAGATA TERUYUKI

IPC: C08G18/10 ,  C08G18/73 ,  C08G18/75

Abstract: PROBLEM TO BE SOLVED: To obtain a urethane prepolymer useful for a urethane coating material and other applications and improved in weatherability and in compatibility and reactivity with a polyol by reacting a specified diisocyanate with a polyol. SOLUTION: A solvent mixture comprising isoamyl acetate and o- dichlorobenzene is used to produce 2,5- and/or 2,6- diaminomethylbicyclo[2,2,1]heptane hydrochloride and form phosgene from 2,5- and/or 2,6-diaminomethylbicyclo[2,2,1]heptane and hydrochloric acid gas, the phosgene is then removed, and the hydrochloride is subjected to vacuum rectification to give 2,5- and/or 2,6-diisocyanatomethylbicyclo[2,2,1]heptane, which is reacted with a polyol comprising a triol, such as trimethylolpropane, so as to provide a ratio of NCO groups to OH groups of (3 to 8):1 in the presence of an organotin-base catalyst at 0-120 deg.C to give a urethane prepolymer having terminal active isocyanato groups.

公开(公告)号：JP2587810B2

公开(公告)日：1997-03-05

申请号：JP22481285

申请日：1985-10-11

Applicant: MITSUI TOATSU CHEMICALS

Inventor： OOTA MASAHIRO ,  KAWASHIMA SABURO ,  SONOBE YOSHIO ,  TAMAI MASAJI ,  OIKAWA HIDEAKI ,  YAMAGUCHI TERUHIRO

IPC: C08G73/10 ,  C09J179/08

公开(公告)号：JP2583666B2

公开(公告)日：1997-02-19

申请号：JP31129290

申请日：1990-11-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATAOKA TOSHUKI ,  OIKAWA HIDEAKI ,  IIYAMA KATSUAKI ,  TAMAI MASAJI ,  YAMAGUCHI TERUHIRO

IPC: C08G69/32 ,  C08K7/02 ,  C08L77/00 ,  C08L77/10

公开(公告)号：JPH0931327A

公开(公告)日：1997-02-04

申请号：JP18154095

申请日：1995-07-18

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YOSHIMURA TOMOMI ,  YAMASHITA WATARU ,  TAMAI MASAJI ,  YAMAGUCHI TERUHIRO

IPC: C07D403/12 ,  C08K5/3415 ,  C08L79/08

Abstract: PROBLEM TO BE SOLVED: To obtain a crystallization accelerator which accelerates the crystallization of a crystalline polyimide by thermally or chemically imidating 4,4'-(4- aminophenoxy)biphenyl with phthalic anhydride. SOLUTION: A compound, 4,4'-(4-Aminophenoxy)biphenyl represented by formula I is thermally or chemically imidated with phthalic anhydride represented by formula II to obtain a bisimide represented by formula III. Although a crystallization accelerator comprising this bisimide is applicable to any crystalline polyimides, it is effective as a crystallization accelerator for especially a crystalline polyimide represented by formula IV. This accelerator can markedly accelerate the crystallization of a crystalline polyimide without detriment to its properties. When the accelerator is added to a crystalline polyimide and the obtained mixture is molten and injection-molded, the polyamide can crystallize in the mold during cooling.