Patents Assigned to Mitsui
  • Patent number: 4480065
    Abstract: A polypropylene-base resin composition which comprises:(a) 80-60 wt. % of a crystalline ethylenepropylene block copolymer having an ethylene content of 11-30 wt. % and specific physical data;(b) 5-35 wt. % of an ethylene-propylene copolymer rubber having a propylene content of 20-50 wt. % and a specific Mooney viscosity;(c) 5-35 wt. % of an ethylene-propylene-a specific diene terpolymer having a propylene content of 20-50 wt. % and a specific Mooney viscosity; and(d) 2-5 wt. %, based on the total weight of the above resin components (a), (b) and (c), of an inorganic filler having a particle size of 3 .mu.m or smaller.The composition has excellent paintability and high stiffness, impact resistance and molding fluidity.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: October 30, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Yoichi Kawai, Yoshihisa Gotoh, Masami Maki, Akio Yoshihara, Minoru Hoshino, Katsumi Sekiguchi
  • Patent number: 4476948
    Abstract: An amphibian vehicle having a vehicle body, and at least a pair of floaters attached to the vehicle body, each of which floaters consists of a cylindrical body having a buoyancy, and a helical blade fixed to the outer circumferential surface of the cylindrical body. This amphibian vehicle is formed such that the water line of the amphibian vehicle at a front end surface of each of the floaters is not higher than the center line thereof, with the water line of said amphibian vehicle at a rear end surface of each of the floaters not higher than a level which is higher than the center line of each of the floaters by 30% of the diameter thereof.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: October 16, 1984
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Mikihisa Komoto, Masatoshi Nakamura
  • Patent number: 4477513
    Abstract: A laminate comprises a sandwich plate of metal-thermoplastic resin-metal layers and a fiber reinforced plastics overlying at least one surface of the sandwich plate. The laminate is suitable for outer wall plates of various matters.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: October 16, 1984
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventor: Hitoshi Koga
  • Patent number: 4476098
    Abstract: An improvement in or relating to the fluidized bed-type heating reactor for introducing into the fluidized bed thereof a water-containing substance to be treated such as an uranyl nitrate solution and subjecting the substance to heat treatment. The reactor of the invention is provided with a microwave-generating means for applying microwaves to the fluidized bed and thereby heating the same.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: October 9, 1984
    Assignees: Mitsui Eng. & Shipbuilding, Mitsui Petrochem. Ind., Tokyo Shibaura Denki K.K.
    Inventors: Yutori Nakamori, Tsuyoshi Matsumura, Takeshi Kubota
  • Patent number: 4476310
    Abstract: A process for the preparation of indoles which comprises reacting aniline or a derivative thereof with a 1,2-glycol in the presence of a catalyst comprising silver supported on a carrier having a specific surface area of not less than 10 m.sup.2 /g.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: October 9, 1984
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tadatoshi Honda, Fujio Matsuda, Tadamitsu Kiyoura, Kazuhiro Terada
  • Patent number: 4476335
    Abstract: In a process for the preparation of mononitrochlorobenzene by nitration of chlorobenzene using a mixed acid of nitric acid and phosphoric acid, the nitration reaction is carried out by using a molar ratio of nitric acid to chlorobenzene of not more than equimol in the presence of a concentrated phosphoric acid as the phosphoric acid component at temperatures of 50.degree.-120.degree. C. while maintaining the concentration of phosphoric acid to 72.4 weight % as P.sub.2 O.sub.5 or more during the reaction.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: October 9, 1984
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Shinji Takenaka, Takeshi Nishida, Joshiro Kanemoto
  • Patent number: 4474969
    Abstract: Preparation process of indole from aniline and ethylene glycol. Upon preparing indole by reacting aniline and ethylene glycol in a gas phase and in the presence of a catalyst, ethylene glycol is charged in portions to a multiplicity of catalyst stages formed by dividing a catalyst bed and connected in series. This divided supply of ethylene glycol permits the suppresing of the decomposition of ethylene glycol, even if the molar ratio of feed aniline to total feed ethylene glycol is small. The above process permits making the yield of indole large and reducing the amount of unreacted aniline to be separated and recovered from the reaction effluent.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: October 2, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Tadatoshi Honda, Kazuhiro Terada
  • Patent number: 4474634
    Abstract: A laminated film or sheet structure composed of (i) an adhesive layer (A), (ii) synthetic resin film layers (B.sub.1) and (B.sub.2) monoaxially oriented in a direction oblique to the longitudinal direction of the film, said layers (B.sub.1) and (B.sub.2) being located on both surfaces of said layer (A) in contact therewith, the directions of the orientations of said layers (B.sub.1) and (B.sub.2) crossing each other, and (iii) a substantially non-oriented synthetic resin film layer (C.sub.1) and/or a substantially non-oriented synthetic resin film layer (C.sub.2), said layers (C.sub.1) and/or (C.sub.2) being melt-adhered to both or one of said layers (B.sub.1) and (B.sub.2), said layers (C.sub.o) and/or (C.sub.2) having a lower orientation temperature than said layers (B.sub.1) and (B.sub.2); and a process for production thereof.
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: October 2, 1984
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Takayuki Hiraoka, Kenji Fujiyoshi
  • Patent number: 4474883
    Abstract: For saving the heat energy required for alcohol production, processes are provided for subjecting rootstocks (Rhizomes) to enzymatic hydrolysis without conventional cooking with steam in order to obtain a high concentration saccharified material which is then subjected to alcohol fermentation.The first process comprises dipping raw rootstocks in a dilute acid for the purpose of sterilization, then crushing the sterilized rootstocks, macerating the crushed rootstocks, dextrinizing the macerated material by the action of bacterial .alpha.-amylase and adding to the dextrinized material glucoamylase and yeast for alcohol fermentation to effect saccharification thereof and subsequent alcohol fermentation.The second process comprises sterilizing rootstocks with a dilute acid and then crushing it, followed by adding blended maceration enzymes to effect maceration amd saccharification with subsequent alcohol fermentation by yeast.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: October 2, 1984
    Assignees: Mitsui Engineering & Shipbuilding Co., Ltd., Ueda Chemical Industrial Co. Ltd., Hankyo Kyoei Bussan Co., Ltd.
    Inventors: Takehiko Yamamoto, Michihiko Nojiri, Kazuo Kakutani, Yoshikazu Matsumura, Shozo Ito
  • Patent number: 4473527
    Abstract: In the manufacture of an inflation film for forming a thermoplastic resin having a melt tension of not more than 4 g into a tubular bubble, a tubular bubble extruded from an extruding nozzle is cooled from the inner circumferential surface thereof by air supplied from a first air supply opening. The outer circumferential surface of the bubble is cooled with air from a first external air-cooling ring arranged at the outside of the bubble. The first air-cooling ring has a guide plate for guiding the bubble, a second air supply opening for supplying air between the guide plate and the bubble from an inlet port arranged at the lower end of the guide plate, and a third air supply opening for supplying air to the bubble from an outlet port arranged at the upper end of the guide plate. The bubble which is cooled by the first external air-cooling ring is further cooled by the air supplied from a second external air-cooling ring. The bubble is solidified.
    Type: Grant
    Filed: November 2, 1982
    Date of Patent: September 25, 1984
    Assignees: Mitsui Petrochemical Industries Ltd., Placo Co., Ltd.
    Inventors: Takumi Fujisaki, Toshiro Ozaki, Tadao Adachi
  • Patent number: 4473577
    Abstract: Disclosed are 2-thiazol derivatives having the general formula ##STR1## where R.sub.1 and R.sub.2 independently represent lower alkyl radicals having 1 to 4 carbon atoms and X represents a lower alkyl radical, a lower alkoxy radical, a lower alkoxycarbonyl radical, a halogenoalkoxy radical, a radical of the formula ##STR2## or a radical of the formula ##STR3## Also disclosed are a process for preparing the derivatives and pharmaceutical compositions having immunomodulatory activity which comprise the derivatives as the active ingredient.
    Type: Grant
    Filed: October 22, 1982
    Date of Patent: September 25, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Isao Sakano, Tatsuro Yokoyama, Kajiya Seitaro, Yutaka Okazaki, Hiroshi Tokuda, Hiroshi Kawazura, Mikio Kumakura, Takuo Nakano, Akira Awaya
  • Patent number: 4473486
    Abstract: A composition for nematic liquid crystal color display elements, said composition comprising at least one anthraquinonic dye represented by the following formula ##STR1## wherein X and Y are identical or different and represent --NH.sub.2 or --OH; Z represents halogen, --OR, --NHR, ##STR2## --CONHR.sub.2 or --COOR.sub.2, in which R represents an alkyl group having 1 to 15 carbon atoms or a lower alkyl group optionally substituted by --OH, ##STR3## R.sub.1 represents hydrogen, halogen, --OH, --OCH.sub.3, an alkyl group having 1 to 15 carbon atoms, or a methoxy group optionally substituted by ##STR4## and R.sub.2 is a phenyl group, an alkyl group having 2 to 5 carbon atoms or a cyclohexyl group; and n is an integer of 1 or 2 provided that when X is --NH.sub.2 and Y is --OH, and when X and Y are both --OH, n is an integer of 1, and when n represents an integer of 2, the two Z's may be identical or different dissolved in at least one nematic liquid crystal.
    Type: Grant
    Filed: August 4, 1982
    Date of Patent: September 25, 1984
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Ryoichi Morinaka, Ryoichi Tukahara, Tsutomu Nishizawa, Tuneo Hidaka
  • Patent number: 4473698
    Abstract: A process for the preparation of indole and derivatives thereof wherein an aniline is reacted with a 1,2-glycol in the vapor phase, the liquid phase or a mixed vapor-liquid phase. A salt of a metal of group IIa of the periodic table, a salt of iron, a salt of cobalt and/or a salt of nickel are used as the catalyst for this reaction. The present invention makes it possible to prepare indole and derivatives thereof in a single step by using inexpensive compounds as the starting materials.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: September 25, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Fujio Matsuda, Takazo Kato, Tadatoshi Honda
  • Patent number: 4469662
    Abstract: This invention relates to a method of removing sulfur and nitrogen oxides by a dry process comprising passing a waste gas through a bed of a carbonaceous adsorbent to remove sulfur oxides and adding ammonia to remove nitrogen oxides, characterized in that at least two carbonaceous adsorbent beds are used and the carbonaceous adsorbent used mainly for removal of sulfur oxides is further used for treatment of the waste gas leaving the final carbonaceous adsorbent bed to remove the ammonia.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: September 4, 1984
    Assignee: Mitsui Mining Company Limited
    Inventors: Takeshi Hamada, Yoshinobu Komatsubara
  • Patent number: 4469506
    Abstract: Disclosed herein is a process for producing ferromagnetic iron powder, which process comprises adding and mixing boron oxide or a borate with .alpha.-FeOOH or .alpha.-Fe.sub.2 O.sub.3 without dissolving the former, heating the thus-obtained mixture to 350.degree. C. or higher in a non-reducing atmosphere and then reducing the thus-heated mixture.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: September 4, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Haruo Sekiguchi, Kimiteru Tagawa, Kazushi Ohshima, Nobuhiro Fukuda
  • Patent number: 4469853
    Abstract: The invention is to provide an improved process for preparing polyolefins having predetermined properties, in particular, melt index and/or density by polymerizing olefin in the presence of a Ziegler catalyst and hydrogen. The parameters corresponding to the concentrations of olefin and hydrogen, participating in the properties, in the gas phase of reactor are detected by high-speed gaschromatography. The detected signals are applied to a computer.The feed volumes of olefin and hydrogen into the reactor are controlled by means of an operation control output, and the respective concentrations in the reactor are controlled. Consequently, the resulting polyolefins possess extremely stable and uniform properties.
    Type: Grant
    Filed: March 22, 1983
    Date of Patent: September 4, 1984
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventor: Ado Mori
  • Patent number: 4469507
    Abstract: Disclosed herein is a process for producing ferromagnetic iron powder, which process comprises adding and mixing zinc borate with .alpha.-FeOOH or .alpha.-Fe.sub.2 O.sub.3 without dissolving the former, heating the thus-obtained mixture to 350.degree. C. or higher in a non-reducing atmosphere and then reducing the thus-heated mixture.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: September 4, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Haruo Sekiguchi, Kazufuyu Sudoh, Sadao Kobayashi, Nobuhiro Fukuda
  • Patent number: 4468257
    Abstract: Method of adding water and a hydroxide of an alkali metal or alkaline earth metal to a washing solvent such as an alkylamide and/or alkylsulfoxide when washing and removing high molecular substances stuck on the interior of a production apparatus or molding machine for an aromatic vinyl-acrylonitrile copolymer. A method for regenerating and recovering the washing solvent used for the above-mentioned washing and removal by means of an evaporator and distillation tower.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: August 28, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Masahiro Kaneko, Tadashi Asanuma, Nobutaka Uchikawa, Ichiro Fujio, Tetsunosuke Shiomura
  • Patent number: D275318
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: August 28, 1984
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventor: Masamitsu Okazaki
  • Patent number: D275319
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: August 28, 1984
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventor: Masamitsu Okazaki