Patents Assigned to Mitsui
  • Patent number: 4501827
    Abstract: A glass-reinforced polymer composition of the invention contains 80 to 99.99 parts by weight, of a 4-methyl-1-pentene polymer, 0.01 to 20 parts by weight of a graft-modified polymer of 4-methyl-1-pentene having graft units of an unsaturated carboxylic acid or an acid anhydride thereof in an amount of 0.5 to 15% by weight and having a limiting viscosity of 0.3 to 10 dl/g, and 1 to 300 parts by weight of glass fibers based on 100 parts by weight of the sum of the 4-methyl-1-pentene polymer and the graft-modified polymer. The composition has overall standards of mechanical strength, heat resistance and water resistance.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: February 26, 1985
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Riichiro Nagano, Hiroshi Kiga, Tadao Iwata
  • Patent number: 4500501
    Abstract: This invention relates to a method of removing sulfur and nitrogen oxides by a dry process comprising passing a waste gas through a moving bed formed of a carbonaceous adsorbent in a direction transverse thereto to remove the sulfur oxides and adding ammonia to remove the nitrogen oxides, characterized in that in a system comprising n moving beds (n being an integer of at least 2), the waste gas is passed transversely through the first moving bed, mixed with ammonia outside the first moving bed, and then fed to the second moving bed, the similar procedure being repeated in order, and finally, the waste gas is passed transversely through the n-th moving bed, while the carbonaceous adsorbent is transported from the n-th moving bed to the first moving bed in order.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: February 19, 1985
    Assignee: Mitsui Mining Company Ltd.
    Inventors: Takeshi Hamada, Yoshinobu Komatsubara
  • Patent number: 4500041
    Abstract: High concentrated coal-water slurry is produced by coarsely crushing coal, thereafter pulverizing the coarsely crushed coal, together with water and a slurry dispersant, according to necessity, in a wet-type ball mill, and feeding back one portion of the finely pulverized coal slurry thus obtained into the inlet of the wet-type ball mill.
    Type: Grant
    Filed: December 3, 1982
    Date of Patent: February 19, 1985
    Assignees: Lion Corporation, Kao Corporation, Mitsui Engineering and Shipbuilding Company Limited, Electric Power Development Company Limited, Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kazuhiko Nakaoji, Mitsugu Kamao, Hayami Itoh, Shuhei Tatsumi, Shoichi Takao
  • Patent number: 4500719
    Abstract: Disclosed are novel alkenylphenylmaleimide derivatives having the general formula ##STR1## where R is an alkenyl radical of from 3 to 12 carbon atoms, R' is a hydrogen atom, a halogen atom, or a straight-chain or branched alkyl radical of from 1 to 4 carbon atoms, and n is a whole number of from 1 to 4, and linear dimers thereof as well as a process for the preparation of such maleimide compounds.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: February 19, 1985
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Masayuki Oba, Motoo Kawamata, Hikotada Tsuboi, Nobuhito Koga
  • Patent number: 4497828
    Abstract: 3-nitro-4-methylbenzene sulfon-2-chloro-4-nitroanilide ##STR1## as a novel compound as well as fungicidal composition containing the compound as the active ingredient. The compound of the invention is markedly effective in controlling plant diseases and, in particular, clubroot disease of Brassica spp., has no toxicity to men, beasts, and fishes, exerts no phytotoxicity on crops, has neither irritant nor unpleasant odor, and manifests its excellent fungicidal effect at low concentrations. Accordingly, it is ideally useful in fungicidal composition.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: February 5, 1985
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Takeo Yoshimoto, Keiichi Igarashi, Hideo Yamazaki, Yoshio Takasawa, Hirohisa Yanagita
  • Patent number: 4496547
    Abstract: An agent for bloat-prevention or -treatment which is useful for preventing or treating bloat caused by feeding large quantities of legume pasture or concentrate feed to ruminants comprises a mixture of a saccharide fatty acid ester and fatty acid salt.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: January 29, 1985
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Ryoji Kawashima, Akira Usagawa, Takayoshi Masuda
  • Patent number: 4495362
    Abstract: A process for preparing alkyl nitroacetates by reacting an alkyl phenyl carbonate with a nitroparaffin in a polar aprotic solvent in the presence of a cyanide ion. The process permits a higher reaction rate, and thus the reaction can be completed even at room temperature.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: January 22, 1985
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Tadatoshi Honda, Yoichi Hosono
  • Patent number: 4492395
    Abstract: A latch member or rotor is rotatably mounted in a main body or frame, attached to a vehicle door, for engaging a striker affixed to the vehicle body. Also mounted in the main body, in coplanar relation to the latch member, is a ratchet engageable with the latter to inhibit its motion in a direction to disengage the striker. The main body has an upstanding bracket on which three levers are mounted for pivotal motion about a common axis, in planes perpendicular to the plane of the latch member and the ratchet. The three levers are: (1) an actuating lever acting directly on the ratchet to cause the same to disengage the latch member and hence to unlatch the door; (2) an outside release lever linked to an outside door handle; and (3) an inside release lever linked to an inside door handle. These levers are interrelated in such a manner that the latch member releases the striker upon actuation of either the outside or the inside door handle.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: January 8, 1985
    Assignee: Mitsui Kinzoku Kogyo K.K.
    Inventor: Shinjiro Yamada
  • Patent number: 4491967
    Abstract: An object moves along a predetermined route adjacent a pair of inductive radio lines crossed at two predetermined intervals P.sub.1 and P.sub.2. A sensing device on the object senses the intervals and enables generation of an object position signal having a first code value when the interval P.sub.1 is sensed and a second code value when the interval P.sub.2 is sensed.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: January 1, 1985
    Assignees: Sumitomo Electric Industries, Ltd., Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Yoshinobu Kobayashi, Tamio Ueno, Kozi Kanagawa
  • Patent number: 4490513
    Abstract: A process for producing a polymer or copolymer of an olefin containing at least 3 carbon atoms which comprises polymerizing or copolymerizing at least one olefin containing at least 3 carbon atoms, or copolymerizing the olefin with to 10 mole % of ethylene and/or a diolefin in the presence of a catalyst composed of (A) a magnesium-containing solid titanium catalyst component and (B) an organometallic compound of a metal of Groups I to III of the periodic table; wherein the solid titanium catalyst component (A) is a composition formed by contacting(i) a reaction product of an organic magnesium compound containing magnesium directly bonded to at least one carbon atom with an organic silicon-containing compound selected from the group consisting of organic silanols containing at least one hydroxyl group directly bonded to silicon and organopolysiloxanes,(ii) an organic acid ester, and(iii) a titanium compound.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: December 25, 1984
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Syuji Minami, Akinori Toyota, Norio Kashiwa
  • Patent number: 4490393
    Abstract: The present invention provides thiazolyl derivatives as new chemical substance represented by the general formula: ##STR1## wherein R.sup.1 stands for a lower alkyl group or a substituted or unsubstituted phenyl group, R.sup.2 for a hydrogen atom, a lower alkyl, lower alkoxy or lower alkylthio group, and R.sup.3 for a pyridyl or iso-oxazolyl group or a grouping of the general formula: ##STR2## processes for preparing same and pharmaceutical compositions containing the thiazolyl derivatives. More particularly, the present invention provides new thiazolyl derivatives which possess immuno-modulating activity and are thus therapeutically effective against immunodiseases such as chronic rheumatoid arthritis and also useful against viral diseases or for the immunotherapy of cancers and possess properties desirous as medicines with a slight toxicity, processes for preparing same and pharmaceutical compositions containing the new substance.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: December 25, 1984
    Assignee: Mitsui Toatsu Kagaki Kabushiki Kaisha
    Inventors: Isao Sakano, Tatsuro Yokoyama, Seitaro Kajiya, Tamotsu Minami, Yutaka Okazaki, Hiroshi Tokuda, Hiroshi Kawazura, Mikio Kumakura, Takuo Nakano, Akira Awaya
  • Patent number: 4490508
    Abstract: A graft-modified copolymer having a melt flow rate of 0.01 to 100 g/10 min at a temperature of 230.degree. C. under a load of 2160 g. The graft-modified copolymer is prepared by grafting (a) 100 parts by weight of low crystalline or amorphous ethylene-alpha-olefin copolymer having an ethylene content of 40 to 93 mole%, a melt flow rate of 0.1 to 50 g/10 min at a temperature of 230.degree. C. under a load of 2160 g, and a density of 0.90 g/cm.sup.3 or less with (b) 0.3 to 50 parts by weight of a styrene-type hydrocarbon. This graft-modified copolymer is suitable for use as a compounding agent for improving the impact resistance of styrene-type polymers without decreasing the surface hardness, weathering resistance, and molding properties thereof.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: December 25, 1984
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Riichiro Nagano, Toshihiro Sagane
  • Patent number: 4489033
    Abstract: A process for injection compression molding ultra high molecular weight polyethylene having an intrinsic viscosity of 3 dl/g or higher measured at 135.degree. C. in decalin and a melt index of 0.01 g/10 min or less comprises,(a) heating the ultra high molecular weight polyethylene to 170.degree.-240.degree. C.,(b) adjusting the volume of the mold cavity V.sub.1 equal to the volume of the molded article V.sub.0,(c) injecting ultra high molecular weight polyethylene having a volume V.sub.0 into the mold cavity through a runner portion at a shear rate of at least 20,000 sec.sup.-1,(d) instantaneously expanding the mold cavity to adjust its volume V.sub.1 to satisfy the relation:1.2 V.sub.0 .ltoreq.V.sub.1at a time from T.sub.1 (immediately before completion of injection) and a time T.sub.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: December 18, 1984
    Assignee: Mitsui Petrochemical Industries
    Inventors: Naotake Uda, Yasuo Kouno, Tadayoshi Shiomura
  • Patent number: 4486512
    Abstract: A low- to medium-level radioactive waste sealing container is constructed by depositing a foundation coating consisting essentially of zinc, cadmium or a zinc-aluminum alloy over a steel base, then coating an organic synthetic resin paint containing a metal phosphate over the foundation coating, and thereafter coating an acryl resin, epoxy resin, and/or polyurethane paint. The sealing container can consist of a main container body, a lid placed over the main body, and fixing members for clamping and fixing the lid to the main body. Each fixing member may consist of a material obtained by depositing a coating consisting essentially of cadmium or a zinc-aluminum alloy over a steel base.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: December 4, 1984
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Seiichi Tozawa, Seii Sugimoto, Toshio Kitamura
  • Patent number: 4484003
    Abstract: .beta.-Chloroalanine is prepared by reacting in an aqueous medium an aziridine-2-carboxylate with hydrogen chloride in an amount of 2.0-5.0 moles per mole of the aziridine-2-carboxyalte and causing the thus-formed .beta.-chloroalanine to selectively crystallize out from the liquid reaction mixture. Since the solution recovered after the isolation of the crystallized .beta.-chloroalanine still contains .beta.-chloroalanine and by-produced .alpha.-chloro-.beta.-alanine dissolved therein, they may be converted into an aziridine-2-carboxylate by treating them with a base to recirculate it for reuse.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: November 20, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Masaharu Ohoka, Toshio Katoh, Ryuichi Mita, Nobuyuki Kawashima, Chojiro Higuchi, Nobuhiro Kawashima, Akihiro Yamaguchi, Shousuke Nagai, Takao Takano
  • Patent number: 4482742
    Abstract: 3,3'-diamino diphenylsulfones are prepared by catalytically reducing and dehalogenating, in the presence of a reduction catalyst and a dehydrohalogenation agent, a diphenylsulfone compound of the general formula ##STR1## in which X is a halogen atom and Y is hydrogen or a halogen atom.
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: November 13, 1984
    Assignee: Mitsui Toatsu Chemicals Inc.
    Inventors: Keizaburo Yamaguchi, Kenichi Sugimoto, Yoshimitsu Tanabe
  • Patent number: 4481131
    Abstract: An electroconductive polyolefin composition comprising (1) 100 parts by weight of a polyolefin resin, (2) 10 to 60 parts by weight of carbon black, (3) 0.1 to 6 parts by weight of sulfur and (4) at least 0.1 part by weight of one or two specified accelerators, and optionally containing 5 to 60 parts by weight of atactic polypropylene.
    Type: Grant
    Filed: February 11, 1982
    Date of Patent: November 6, 1984
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yoichi Kawai, Yoshihisa Gotoh, Masami Maki, Sachio Yokote, Katsumi Sekiguchi, Katsuyoshi Sasagawa, Masao Imai
  • Patent number: 4481175
    Abstract: A calcium-phosphorus apatite is obtained by reacting a calcium compound with a phosphorus compound under reflux in a reaction medium consisting mainly of an organic solvent and water.
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: November 6, 1984
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Shinji Iino, Akihiko Nakamura, Kensaku Maruyama, Kohji Nakamura
  • Patent number: 4479352
    Abstract: A hot-water storage type power generating unit includes a first tank coupled to a power generating system having a generator, a hot water producting unit for heating medium-temperature water from the first tank with exhaust heat from external equipment to produce high-temperature water, and a second tank for storing the high-temperature water from the hot water producing unit. The high-temperature water is supplied from the second tank to the power generating system for generating electric power to meet peak load demands. The power generating system includes a rotary separator turbine rotatable by the high-temperature water from the second tank for separating steam from the high-temperature water, and a steam turbine rotatable by the steam from the rotary separator turbine, the generator being operatively coupled with the steam turbine for being rotated thereby.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: October 30, 1984
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Keijiro Yamaoka, Hajime Endo
  • Patent number: 4480002
    Abstract: Dyestuff-containing microscopic capsule suspension for record materials, containing in microscopic capsules a lactone family dyestuff represented by the general formula (I): ##STR1## wherein a, b, c and d are each a carbon atom or either one or two atoms of said a, b, c and d are nitrogen atoms and the remaining atoms are carbon atoms, said a, b, c and d may have one or two substituent groups, adjacent a-b, b-c or c-d bond may form another ring, X and Y represent individually a benzene, naphthalene or aromatic heterocyclic ring which may include one or more substituent groups, and X and Y may be the same or different and may be coupled together to form a ring; and a metal ion sequestering agent in the capsules or a liquid medium in which the capsules are suspended.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: October 30, 1984
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Makoto Asano, Kiyoharu Hasegawa, Hiroyuki Akahori, Michihiro Tsujimoto