Patents Assigned to Mitsui
  • Patent number: 5117191
    Abstract: According to the invention, there is provided an apparatus for monitoring degradation of insulation of an electrical installation that can constantly monitor its electric equipments and cables for degradation of insulation under hot-line conditions.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: May 26, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Akira Saigo, Shigenari Maezawa, Tomoaki Kageyama, Akio Sera, Fukuso Terunaga
  • Patent number: 5114605
    Abstract: A lubricant oil for refrigerators, industrial gears, automotive engines, automotive gear oil, fibers and as a rolling lubricant oil, comprising a glycol ether carbonate represented by the general formula [I]R.sub.1 --0--R.sub.3 --0).sub.m CO--OR.sub.4).sub.n OR.sub.2 [I]wherein R.sub.1 and R.sub.2 are each independently an aliphatic group, an alicyclic group, an aromatic group and an aromatic-substituted aliphatic group each having not greater than 20 carbon atoms, R.sub.3 and R.sub.4 are each independently an ethylene group or an isopropylene group, and m and n are each independently an integer of 2 to 100, and optionally containing ozone layer-nondestructive Freon such as Freon R-134a.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Kinya Mizui, Yoshiaki Furuya
  • Patent number: 5114941
    Abstract: A pyrimidinedione derivative compound has a basic backbone in which a 4-oxobenzopyran ring group part and a pyrimidinedione part are linked by a structure comprising an alkyl chain containing at least two nitrogen atoms and one oxygen. The pyrimidinedione derivative is useful for a medical treatment of cardiac arrhythmias.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Tsutomu Katakami, Tatsuro Yokoyama, Haruki Mori, Nobuya Kawauchi, Joji Kamiya, Masaaki Ishii
  • Patent number: 5114081
    Abstract: A system for mechanically and biologically decomposing a garbage discharged from a house, a restaurant or the like at high operational efficiency is disclosed. The system includes a disposer for disintegrating the garbage into a large number of pieces, a solid/liquid separator for separating water from the disintegrated garbage and a garbage decomposing vessel for biologically dissolving the solid disintegrated garbage from which water has been substantially separated in the solid/liquid separator. To promote biological decomposition of the solid disintegrated garbage in the garbage decomposing vessel, pulverized wood is normally used instead of soil as a raw material for forming a decomposing bacillus growing bed in the garbage decomposing vessel. Prior to practical use, the pulverized wood is thermally processed.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: May 19, 1992
    Assignees: Mitsui Home Co., Ltd., Shinyou Sangyo Co., Ltd.
    Inventor: Shintaro Takenaka
  • Patent number: 5115047
    Abstract: A copolyester having an intrinsic viscosity, measured in o-chlorophenol at 25.degree. C., of 0.3 to 1.5 dl/g and being derived from dicarboxylic acid units composed of 95 to 60 mole % of isophthalic acid units and 5 to 40 mole % of 2,6-naphthalenedicarboxylic acid units and dihydroxy compound units composed of 95 to 70 mole % of ethylene glycol units and 5 to 30 mole % of 1,3-bis(2-hydroxyethoxy)benzene units; a gas barrier imparting agent composed of the copolyester; a polyester composition composed of (A) a polyethylene terephthlate and (B) the copolyester; and a film, a preform and a container composed of the polyester composition. Also provided are a polyester laminated structure, a stretched laminated structure, a preform and a laminated blow-molded article each composed of (C) a polyalkylene terephthalate layer and (D) a copolyester layer composed of the copolyester or the polyester composition.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Mikio Hashimoto, Norio Kaneshige
  • Patent number: 5114712
    Abstract: PSC-A is a new serological common antigen to Pseudomonas aeruginosa having very low toxicity, and highly effective for protecting infection by any of the serotypes of Pseudomonas aeruginosa. PSC-A can be used as the active component in a pharmaceutical agent for protecting Pseudomonas aeruginosa infection.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tamotsu Fukuda, Shiro Shigeta, Hiroaki Okuya, Yasuyuki Kuroiwa, Tadashi Sudo
  • Patent number: 5115010
    Abstract: A composition comprising (I) a thermally stable polyamide such as an aromatic polyamide, (II) a halogenated polystyrene or a halogenated polyphenylene oxide, and (III) sodium antimonate has excellent fire retardancy and excellent thermal stability during molding. The thermal stability of the composition is further enhanced by including (IV) a hydrotalcite-type complex hydroxide or (V) magnesium oxide and/or zinc oxide.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Inc.
    Inventors: Hideki Sakai, Kazuo Ishiwatari, Fumitoshi Ikejiri
  • Patent number: 5113880
    Abstract: A dental floss having excellent tensile strength, impact strength, water resistance, creep resistance and use feeling and composed of a drawn multifilament of an ultrahigh-molecule-weight polyolefin having an intrinisic viscosity of at leasat 5 dl/g or an ultrahigh-molecular-weight ethylene-alpha-olefin copolymer containing an alpha-olefin having at least 3 carbon atoms in an amount of 0.1 to 20 on an average per 1000 carbon atoms. An interdental cleaning tool comprising the dental floss stretched taut between protruding portions of the tool is also provided.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Narimichi Honda, Kazuo Yagi
  • Patent number: 5115052
    Abstract: Disclosed herein is a process for the production of cycloolefin random copolymers comprising copolymerizing ethylene with at least one specific cyclooloefin in a liquid phase in the presence of a catalyst and a solvent in a polymerization vessel, wherein ethylene is copolymerized with the cycloolefin while feeding the cycloolefin or a mixture of the cycloolefin and the solvent onto inside circumferential wall of the polymerization vessel above the gas-liquid interface in the polymerization vessel. The proposed process ensures a smooth copolymerization reaction and a continuous and stable running of the apparatus for a prolonged period of time, and is productive of ethylene-cycloolefin random copolymers which have a uniform quaility and are excellent in heat resistance, heat aging property and various mechanical properties.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Hiroo Wamura, Shunyo Uesugi, Takashi Hayashi
  • Patent number: 5114466
    Abstract: 1-(3-Substituted benzyl)-3-halogeno-4-(1-halogenoalkyl)-2-pyrrolidinones of the general formula (I): ##STR1## where X represents a hydrogen atom or halogen atom, Y and Z each represents a chlorine atom or bromine atom, and R represents an alkyl group with 2 to 4 carbon atoms, are herbicides useful in rice paddy fields to control weeds therein, especially Echinochloa crusgalli and can be produced subjecting the corresponding 3-dihalogeno compounds to dehalogenation to remove one of the halogen atoms or by cyclizing a 2,2-dihalogenoacetamide derivative represented by the general formula (II) under the presence of an appropriate catalyst; ##STR2## in which X, Y, Z and R respectively have the same meanings as described above.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kengo Oda, Koichi Moriyasu, Masao Hayashi, Makoto Nishida, Masami Oyamada, Akie Fujiwara, Junko Watanabe
  • Patent number: 5115030
    Abstract: A propylene resin composition contains:(A) 50 to 99% by weight of a polypropylene resin, and(B) 1 to 50% by weight of a rubber component, andthe rubber component (B) contains a random copolymer composition containing:(i) an ethylenic random copolymer selected from random copolymers of ethylene with an .alpha.-olefin having 3 to 20 carbon atoms having an ethylene content of 60 to 95 mol % and a MFR.sub.230.degree. C. of 0.1 to 50 g/10 min. and(ii) a propylenic random copolymer selected from random copolymers of propylene with an .alpha.-olefin having 2 to 20 carbon atoms except for propylene having a propylene content of 60 to 95 mol % and a MFR.sub.230.degree. C. of 0.1 to 50 g/10 min.,at a weight ratio of (i):(ii) of from 95:5 to 20:80.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Mutsuhiro Tanaka, Masahiro Sugi
  • Patent number: 5115067
    Abstract: Disclosed is a molecularly oriented molded body of an ultra-high-molecular-weight ethylene/.alpha.-olefin copolymer having an intrinsic viscosity (.eta.) of at least 5 dl/g and such a content of an .alpha.-olefin having at least 3 carbon atoms that the number of molecules of the .alpha.-olefin is 0.1 to 15 on the average per 1000 carbon atoms, wherein the molded body shows at least two crystal fusion endothermic peaks when the measurement is conducted in the restraint state by using a differential scanning calorimeter, the molded body has at least one crystal fusion endothermic peak (Tp) at a temperature higher by at least 20.degree. C. than the inherent crystal fusion temperature (Tm) of the ultra-high-molecular-weight ethylene/.alpha.-olefin copolymer determined as the main fusion endothermic peak at the time of the second elevation of the temperature, and the quantity of heat based on said crystal fusion endothermic peak (Tp) is at least 15% based on the total fusion heat quantity.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Kazuo Yagi, Akinori Toyota
  • Patent number: 5112899
    Abstract: A thermosetting resin composition formed of a polyaminobismaleimide resin, which is composed of a bismaleimide compound and a diamine compound, and a fibrous reinforcing material. The composition has excellent impact resistance and toughness while retaining conventional high heat resistance.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: May 12, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Norimasa Yamaya, Masahiro Ohta, Akihiro Yamaguchi
  • Patent number: 5113009
    Abstract: A cyclical process for producing and isolating a mineral acid salt of an amino acid methyl ester in high purity and yield from the reaction solution produced by esterifying an amino acid with methanol in methanol in the presence of a mineral acid, by cooling the resulting reaction solution to precipitate crystals of the mineral acid salt; filtering the crystals;drying the isolated wet crystals or washing with another organic solvent; and recycling the filtrate for reuse in the esterification reaction.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: May 12, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Masanobu Ajioka, Chojiro Higuchi, Takeshi Oura, Toshio Katoh, Akihiro Yamaguchi
  • Patent number: 5112817
    Abstract: Novel heterocyclic compounds, which are represented by the following general formula, useful as anticancer drug potentiaters having a potentiating effect on the incorporation of anticancer drugs into cancer cells, the compounds each synthesized by, for example, reacting a epoxy compound obtained by reacting a heterocyclic compound with an epihalogenohydrin, with an amine derivative.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: May 12, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Nobuyuki Fukazawa, Makoto Odate, Tsuneji Suzuki, Kengo Otsuka, Takashi Tsuruo, Wakao Sato
  • Patent number: 5113402
    Abstract: A non-linear optical material is used to convert a solid state laser ray of light output of a first wavelength into light of a shorter wavelength. The light output of shorter wavelength is suitable for use as a light source for lithography. Wavelengths as short as those obtained by excimer laser devices can be achieved. When the light source is used in lithography, the degree of integration of ICs for the new generation of 16MDRAM can be achieved more safely and simply than possible with excimer lasers.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: May 12, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Akira Itani, Kazuo Shimazaki
  • Patent number: 5112593
    Abstract: Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a catalyst composed of a chromium oxide as a principal component. The reaction is carried out in a fluidized bed reactor equipped at vertical intervals not greater than 100 cm with a plurality of perforated horizontal plates having a perforation rate of 10-60% in a reaction zone in which the catalyst is fluidized in operation. The reaction zone is above a gas diffuser plate.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: May 12, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Hiroyuki Itoh, Yoshitsugu Kono, Isao Kikuchi, Shinji Takenaka, Masanobu Ajioka
  • Patent number: 5112991
    Abstract: A process is provided herein for preparing an organo-substituted sodium aluminum hydride by reacting sodium, aluminum, an organic compound of specific structure containing a hydroxyl group and hydrogen.In such process, an aluminum alloy is used as the aluminum.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: May 12, 1992
    Assignee: Mitsui Toatsu Chemicals Incorporated
    Inventors: Tetsuya Iwao, Shuichi Osaka, Takao Sakaki, Tadao Nishida, Kiyoshi Yamamura, Seijiro Koga, Reiji Hirai, Haruo Nakagawa
  • Patent number: 5113018
    Abstract: N-alkyl amino phenols, such as N-ethyl-m-amino phenol are produced in high yield and with high purity by reacting a divalent phenol, such as resorcinol, with an alkylamine, such as ethylamine, in the absence of catalyst and solvent, at a temperature of 120.degree.-210.degree. C. under elevated pressure in an inert gas atmosphere. In a first embodiment, the resulting reaction mixture is acidified to convert the N-alkylaminophenol to its water soluble salt and the resulting aqueous layer is separated from the oily layer. The aqueous layer is rendered alkaline to liberate N-alkylaminophenol as an oily layer. The N-alkyl-aminophenol oily layer is then separated from the aqueous layer and distilled.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: May 12, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yoshito Kurano, Masato Kawamura, Masahiro Kondo, Michio Tanaka, Sanehiro Yamamoto
  • Patent number: 5112810
    Abstract: A pharmaceutical composition containing serum thymic factor (FTS) and a method for using FTS containing compositions for treating a variety of immunodeficiencies and autoimmune diseases including multiple sclerosis, Guillain-Barre syndrome, inflammatory neuropathy, polyneuritis and other immunodemyelinating diseases.
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: May 12, 1992
    Assignee: Mitsui Pharmaceuticals, Inc.
    Inventors: Yoshitaka Nagai, Hayao Abe, Masanobu Arita