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公开(公告)号：JPH0245651B2
公开(公告)日：1990-10-11
申请号：JP11703481
申请日：1981-07-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OOSAWA MASANORI , KAWAMATA MOTOO , TOYODA TOSHIHIRO , BABA KENICHI
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公开(公告)号：JPH02132111A
公开(公告)日：1990-05-21
申请号：JP28374888
申请日：1988-11-11
Applicant: MITSUI TOATSU CHEMICALS
Inventor： HIRAI YOSHIO , TOYODA TOSHIHIRO , ITO NOBUYUKI , YAMAGUCHI SHUICHI
IPC: C08F279/02 , C08F279/00
Abstract: PURPOSE:To obtain the title composition of high impact resistance useful for food packaging materials, etc., by regulating, at or below a specified value, the pH of a polymerization system just after the initiation of polymerization to the polymerization peak. CONSTITUTION:(A) In the presence of 1-40 pts.wt. of a diene-based rubbery polymer containing >=50wt.% of conjugated diene monomer, (B) 100 pts.wt. of a mixture of an unsaturated nitrile and another monomer copolymerizable therewith is polymerized in an aqueous medium in combination with (C) a molecular weight regulator. In this case, the pH of the polymerization system just after the initiation of polymerization to the polymerization peak is adjusted to
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公开(公告)号：JPH01167318A
公开(公告)日：1989-07-03
申请号：JP32538687
申请日：1987-12-24
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKAHASHI AKIHIKO , TOYODA TOSHIHIRO , FUKUDA YOSHIAKI , SHINKAI NAOYOSHI , MAKIHARA MASAYUKI , HIRAI YOSHIO
IPC: C08F279/04 , C08F279/00 , C08F297/04
Abstract: PURPOSE:To obtain a high-nitrile resin by graft polymerization of a monomer mixture to each specific diene synthetic rubber so that the ratio of the unsaturated nitride in the resin grafted to the rubber to the rest of the unsaturated nitrile in the matrix resin is specified value. CONSTITUTION:The objective high-nitrile resin excellent in swelling resistance and environmental stress cracking resistance can be obtained by graft polymerization to (A) 1-40 pts.wt. of a diene rubber containing >=50wt.% of a conjugated diene monomer (pref. 1,3-butadiene) of (B) 60-99 pts.wt. of a monomer mixture comprising (i) >=60(pref. 60-90)wt.% of a unsaturated nitrile (pref. acrylonitrile) and (ii) >=5(pref. >=10)wt.% of an aromatic vinyl compound (pref. styrene) so that the unsaturated nitrile content X% in the resin grafted to the rubber and the rest of the unsaturated nitrile content Y% satisfy the relationship: 60
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公开(公告)号：JPS62294529A
公开(公告)日：1987-12-22
申请号：JP13814586
申请日：1986-06-16
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TSURUTA RINTAROU , TOYODA TOSHIHIRO , ISAKA TAKASHI , YOSHIDA MASAHITO , YAGI RYUZO
IPC: B29C47/88 , B29C48/33 , B29C48/90 , B29K101/10
Abstract: PURPOSE:To obtain a resin molded material whose formal accuracy is favorable, by cooling the resin molded material by providing an after barrel on the tip part of an outlet of the resin. CONSTITUTION:A thermosetting resin material supplied through a hopper 1 is heated and melted within a cylinder 2 by a heater 3, shifted to a smooth part 5 through the tip part of a flight of a screw 4, a gap part to be generated by the screw flight is narrowed and fused through pressure. Then the fused resin is shaped to such an extent as to hold its own form while shifting along the smooth part of the screw. In this instance, back pressure is applied to the resin by back pressure applying equipment 6 fitted to the tip of the cylinder, the resin is fused sufficiently with pressure, shaped and extruded by turning into a tubular molded product 8 through the tip of the cylinder, back pressure applying equipment and after barrel 7. The after barrel possesses about the same inside diameter as that of the cylinder of an extruding machine, which is provided with a jacket and possesses structure quenchable through flowing of cooling water.
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公开(公告)号：JPS6285016A
公开(公告)日：1987-04-18
申请号：JP22349185
申请日：1985-10-09
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TOYODA TOSHIHIRO , NAKAJIMA HISAE , NAKANO HIROMI , SHISHIDO SHIGEYUKI , OSAWA MASANORI , SEI KOHEI
Abstract: PURPOSE:To readily and simply obtain aromatic polyamide pulp having an improved shape, by specifying both raw materials and a method of extruding dope into a coagulating solution. CONSTITUTION:An aromatic polyamide synthesized from an aromatic polyfunctional isocyanate and an aromatic polyfunctional carboxylic acid is dissolved in a solvent to give dope. The dope and a solution comprising a non- solvent of the aromatic polyamide as a main component are processed into binary fluid, which is extruded through a binary fluid nozzle. A main component of a coagulating solution is a non-solvent (water, methanol, etc.,) of the aromatic polyamide. The coagulating solution may contain small amounts of an amide solvent or an ion-containing solvent besides the non-solvent. High-speed stirring of the coagulating bath is not required, a high-precision device is not needed and maintenance cost can be reduced.
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Patent Agency Ranking
公开(公告)号：JPS6285015A
公开(公告)日：1987-04-18
申请号：JP22349085
申请日：1985-10-09
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TOYODA TOSHIHIRO , NAKAJIMA HISAE , NAKANO HIROMI , SHISHIDO SHIGEYUKI , OSAWA MASANORI , SEI KOHEI
Abstract: PURPOSE:To readily and simply obtain pulp of an aromatic polyamide, having good shape, by respectively specifying a raw material, solvent therefor and composition and temperature of a coagulating solution. CONSTITUTION:An aromatic polyamide synthesized from an aromatic polyfunctional isocyanate and aromatic polyfunctional carboxylic acid is dissolved in N,N'-dimethylethyleneurea to gove a dope, which is then introduced into a coagulating solution in a vigorously stirred state. The coagulating solution is constituted of N,N'-dimethylethyleneurea and a nonsolvent for the aromatic polyamide, e.g. water or methanol. The content of the N,N'-dimethylethyleneurea is 3-14wt% and the temperature is
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公开(公告)号：JPS57183417A
公开(公告)日：1982-11-11
申请号：JP6410381
申请日：1981-04-30
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KAWAMATA MOTOO , OOSAWA MASANORI , TOYODA TOSHIHIRO , YONEYA YOSHIMI , NAKANO HIROMI
Abstract: PURPOSE:A solution of specific aromatic polyamide polymer and a precipitant are mixed under high shear force conditions to produce the titled substance with good water filtration, paper-making properties, less fluctuation in paper thickness and showing high physical properties such as electric insulation after processed. CONSTITUTION:The reaction between an aromatic polycarboxylic acid such as isophthalic acid and an aromatic polyisocyanate such as tolylene-2,6-diisocyanate is conducted in an anhydrous organic polar solvent such as N,N-dimethylacetamide in an inert gas atmosphere or under reduced pressure in the presence of a catalyst of a monoalkali salt of organic polycarboxylic acid at 20-250 deg.C under heating to prepare a 2-40wt% solution of an aromatic polyamide of more than 0.5 inherent viscosity. The resultant polymer solution is mixed with a precipitant, preferably a mixture of water (5-90wt%) with an inorganic compound such as calcium chloride under a shear force of higher than 3,000 Leynold's number at 35-95 deg.C.
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公开(公告)号：JPS57179223A
公开(公告)日：1982-11-04
申请号：JP6332881
申请日：1981-04-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OOSAWA MASANORI , KAWAMATA MOTOO , TOYODA TOSHIHIRO , ITOU MASAYOSHI , JINNO MASAHIRO , MIZUTANI KAZUMI
Abstract: PURPOSE:To obtain a high-molecular weight linear polyamide acid having no polymer with branched chain and a network structure, by reacting a tricarboxylic acid with a tetracarboxylic acid and a diisocyanate in the presence of a monoalkali metal salt of a dicarboxylic acid. CONSTITUTION:(A) A tricarboxylic acid (preferably pentane-1,2,5-tricarboxylic acid etc.) shown by the formulaI(R1 is >=3C trifunctional group, etc.) and/or a tetracarboxylic acid (preferably butane-1,2,3,4-tetracarboxylic acid, etc.) shown by the formula II (R2 >=4C tetrafunctional group, etc.) are reacted with (B) a diisocyanate (preferably hexamethylene-1,6-diisocyanate, etc.) shown by the formula III (R3 is >=2C bifunctional group, etc.) in the presence of a monoalkali metal salt of a dicarboxylic acid (preferably monolithium adipate, etc.) shown by the formula IV (R4 is R3; M is alkali metal or IA group) to give the desired polyamide acid having a repeating unit shown by the formula V and/or formula VI.
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公开(公告)号：JPH0952646A
公开(公告)日：1997-02-25
申请号：JP23344895
申请日：1995-08-17
Applicant: KITAMURA ATSUSATO , MITSUI TOATSU CHEMICALS
Inventor： KITAMURA ATSUSATO , SHINGU JUNICHI , MORITA KATSUYUKI , SUZUKI HISATOSHI , TOYODA TOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To lead-through a regular-size sheet from the terminal end of a con veyor belt in a correct attitude at good timing by providing a control roll for leading-through the lowermost regular-size sheet from the terminal end of the belt conveyor synchronously with the revolving speed based on the detection result of an interval detecting means. SOLUTION: The attitude of a regular-size sheet S on a conveyor belt 1 is detected by an attitude detecting means 2. When the inclination in the horizontal direction is detected, the attitude of the regular-size sheet S is corrected to the correct attitude by an attitude correcting means 3 based on the detection result. While the lowermost regular-size sheet S is sent according to the revolving speed of a control roll 6, the interval between the rear end side of the regular-size sheet S and the tip side of the succeeding regular-size sheet is detected by the second interval detecting means 4b. The traveling speed of the conveyor belt 1 is adjusted by a control mechanism 5 based on the detection result, and the distance between the lowermost regular-size sheet S and the succeeding regular-size sheet S is finely adjusted to the set value before the lowermost regular-size sheet S synchronized with the revolving speed of the control roll 6 is lead-through.
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公开(公告)号：JPH0159400B2
公开(公告)日：1989-12-18
申请号：JP6684181
申请日：1981-05-06
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KAWAMATA MOTOO , OOSAWA MASANORI , TOYODA TOSHIHIRO , URAE TADAYOSHI , FUKUTOMI TOSHIAKI
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