Patents Assigned to Mitsubishi Petrochemical Co., Ltd.
  • Patent number: 5135825
    Abstract: There is disclosed a method for producing an ambient temperature molten salt comprising at least one of 1,3-dialkylimidazolium halide, 1,2,3-trialkylimidazolium halide and N-alkylpyridinium halide, and an aluminum halide, which comprises suspending the above starting materials in an inert solvent having a low boiling point to carry out a complex forming reaction.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: August 4, 1992
    Assignees: Mitsubishi Petrochemical Co., Ltd., Nisshin Steel Co., Ltd.
    Inventors: Shoichiro Mori, Kazuhiko Ida, Hitoshi Suzuki, Setsuko Takahashi, Isao Saeki
  • Patent number: 5134194
    Abstract: Thermoplastic resin composition comprising the following components A and B is presented which improves the compatibility of component resins, to achieve a thermoplastic resin having excellent molding property and mechanical strength:A. 90 to 10 wt % of a polyolefin resin containing a substituted silyl group represented by general formula;--SiR.sub.n Y.sub.3-n(wherein, R is aliphatic hydrocarbon group; Y is hydrolyzable group or hydroxyl group; n represents 0, 1 or 2), andB. 10 to 90 wt % of saturated polyester resin or hydroxyalkylated polycarbonate resin or hydroxyalkylated polyphenylene ether resin.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: July 28, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Takayuki Inoue, Yusuke Arashiro, Shin-ichi Yamauchi, Michiharu Kihira, Haruo Ohmura, Fumiyoshi Yamada
  • Patent number: 5130600
    Abstract: This invention relates to an acceleration sensor having less output drift due to temperature change and noise due to external induction which includes a piezoelectric device formed of a piezoelectric member having one or more electrodes provided on each of sides thereof and a lining member of low linear expansion coefficient adhered to one side thereof. A low linear expansion coefficient circuit substrate is provided having the piezoelectric device adhered to one side thereof and having a signal processing electronic circuit formed on the other side thereof. A cabinet having three layers, including an internal conductive resin layer, an adiabatic resin layer, and an external conductive metal layer, completely enclose the piezoelectric device and the circuit substrate.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: July 14, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Tomonobu Tomita, Yoshinao Mukasa, Masahiro Sasaki, Fumio Ohta, Kazuo Yorihiro
  • Patent number: 5128421
    Abstract: Disclosed is a method for preparing a hydroxyalkyl-functionalized polyphenylene ether which comprises reacting a polyphenylene ether represented by the formula: ##STR1## wherein Q.sub.1 each represents a halogen atom, a primary or secondary alkyl group, a phenyl group, an aminoalkyl group, a hydrocarbonoxy group or a halohydrocarbonoxy group; Q.sub.2 each represents a hydrogen atom, a halogen atom, a primary or secondary alkyl group, a phenyl group, a haloalkyl group, a hydrocarbonoxy group or a halohydrocarbonoxy group; and m is an integer of 10 or more,with a functionalizing agent in the presence or absence of an organic solvent capable of dissolving the polyphenylene ether and in the presence of a basic catalyst.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: July 7, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Haruo Ohmura, Mitsutoshi Aritomi
  • Patent number: 5126391
    Abstract: Disclosed is a filler-containing stretched film composed of a resin composition comprising:(a) 20 to 80 parts by weight of a linear ethylene copolymer containing 1 to 20% by weight of an .alpha.-olefin or diolefin comonomer(s) with 6 or more carbon atoms, having a density of 0.910 to 0.945 g/cm.sup.3 and a melt flow rate of 0.01 to 20 g/10 min, and an extracted amount with boiling n-hexane of 20% by weight or less,(b) 80 to 20 parts by weight of a particulate inorganic filler having an average particle size of 10 .mu.m or less and a bulk density of 0.1 to 0.7 g/ml and(c) 0.1 to 15 parts by weight of a saturated or unsaturated aliphatic acid ester having 9 to 40 carbon atoms based on 100 parts by weight of the total amount of Component (a) and Component (b),which film has tear strength MD measured according to ASTM D1922-61T of 10 g or more.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: June 30, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Koji Yamamoto, Shoichi Mori, Tetsuhiko Hashimoto, Hideo Uchiyama
  • Patent number: 5124074
    Abstract: A novel anti-foaming agent is described which contains a compound produced by an addition reaction ofa mono-substituted poly(alkylene glycol) represented by the general formula:RO(AO).sub.x H (I)wherein R represents a monovalent hydrocarbon group having from 1 to 20 carbon atoms, AO represents a structural unit of an oxyalkylene chain, said structural unit having from 2 to 4 carbon atoms, and x represents a number of 1 to 80, witha polyepoxy compound represented by the general formula: ##STR1## wherein Q represents a residue of an organic compound containing in the molecule thereof 2 or more hydroxyl groups and either of a hydrocarbon chain having from 2 to 20 carbon atoms and an oxyalkylene chain having a polymerization degree of from 2 to 100, said residue having a valence of y and being formed by removing from 2 to 8 active hydrogen atoms from the organic compound, and y represents a number of 2 to 8.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: June 23, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Yoshitaka Uchiyama, Harumi Suzuki
  • Patent number: 5120800
    Abstract: Disclosed are processes for preparing a process for preparing a modified polyphenylene ether which comprises reacting any one of a borane compound having at least one boron-hydrogen bond, an .alpha.,.beta.-unsaturated carbonyl compound or a mercaptane having a carbonyl group, a hydroxyl group or an alkoxysilyl group with a polyphenylene ether having a carbon-carbon unsaturated bond in a substituent, and optionally oxidizing the resulting borane-modified PPE under alkaline conditions.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: June 9, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Toru Tsukahara, Mitsutoshi Aritomi
  • Patent number: 5118442
    Abstract: An optically active compound represented by formula (I): ##STR1## wherein R.sup.1 represents an alkyl group having from 6 to 18 carbon atoms or an alkoxy group having from 6 to 18 carbon atoms; A represents ##STR2## or ##STR3## wherein ring ##STR4## represents a nitrogen-containing hetero-aromatic ring; n and m each represents 0 or 1; R.sup.2 represents an alkyl group having from 1 to 12 carbon atoms; and C* is an asymmetric carbon atom. The compound of formula (I) exhibits excellent physicochemical stability, a low temperature range for the chiral smectic C phase when used either alone or in combination with other compounds, and a rapid response.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: June 2, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Masaki Saito, Makoto Takeda, Noriko Wada, Shiroh Inui, Hiroshi Taniguchi, Kazuaki Isomura, Nobuyoshi Maruyama, Shoichi Seo, Hiroshi Iwane, Shin Kawano
  • Patent number: 5116743
    Abstract: There is disclosed a process for producing L-alanine by reacting in a single reaction tank, in an aqueous reaction mixture having a pH of 6 to 10 and containing at least one .alpha.-keto acid, fumaric acid or a salt thereof with ammonia or ammonium ions in the presence of two microorganisms having fumarase inactivity.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: May 26, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Makoto Goto, Terukazu Nara, Masato Terasawa, Hideaki Yukawa
  • Patent number: 5102973
    Abstract: A conjugated system-containing organic high molecular compound is described, which contains a recurring unit represented by the following structural formula (I) and has a number-average molecular weight of 1,000 or more: ##STR1## wherein m represents an integer of from 2 to 10; n represents an integer of from 1 to 23; B and B' respectively represent --NHCO-- and --CONH--, --CONH-- and --NHCO--, ##STR2## --A-- is selected from the group consisting of ##STR3## wherein R.sup.1-4 and R.sup.5-8 each independently is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having 1 to 5 carbon atoms, an amino group, an alkylamino group having 1 to 5 carbon atoms, a hydroxyl group, an alkoxyl group having 1 to 5 carbon atoms, a cyano group, a nitro group, and groups of the following formulae (a), (b), and (c), provided that the groups of --A-- may be the same or different: ##STR4## wherein R.sup.9-12, R.sup.13-16, and R.sup.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: April 7, 1992
    Assignees: Mitsubishi Petrochemical Co., Ltd., Kazuyoshi Iimura, Seiji Ujiie
    Inventors: Kazuyoshi Iimura, Seiji Ujiie, Mitsutaka Miyabayashi
  • Patent number: 5102488
    Abstract: The present invention provides a method for forming a cured-resin layer having a surface with antistatic properties. An ultraviolet-curable resin having antistatic properties is laminated on an ultraviolet-curable resin for forming an electrostatic cured surface by curing and the two layers then being simultaneously cured by ultraviolet irradiation thereon. A cured-resin layer is thereby obtained where the surface layer of the cured resin is provided with antistatic properties, and is strongly held by chemical bonding.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: April 7, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Kazuhide Hayama, Noritaka Hosokawa, Takao Yazaki, Masataka Noro
  • Patent number: 5098699
    Abstract: A hair setting gel composition comprising (A) from 0.2 to 5% by weight of a partially of completely neutralized salt of a crosslinked carboxyvinyl polymer, (B) from 0.5 to 10% by weight of an amphoteric resin, and (C) from 85 to 99.5% by weight of a solvent mainly comprising water and/or a lower alcohol, with the total of the components (A), (B) and (C) being 100% by weight. The gel composition is excellent in transparency and hair setting performance.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: March 24, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Kazuhide Hayama, Kanji Narazaki, Sigeoki Kawaguchi
  • Patent number: 5098610
    Abstract: There is disclosed a conductive thermoplastic resin composition which comprises:(a) 30 to 86% by weight of a thermoplastic aromatic polycarbonate,(b) 2 to 15% by weight of a high density polyethylene having a density of 0.945 to 0.970 g/cm.sup.3 and a melt flow rate of 0.1 to 30 g/10 min,(c) 5 to 20% by weight of a glass fiber having an average diameter of 3 to 15 .mu.m and an average length of 0.05 to 10 mm,(d) 5 to 20% by weight of a carbon fiber having an average diameter of 3 to 20 .mu.m and an average length of 0.03 to 15 mm, and(e) 2 to 15% by weight of a conductive carbon black.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: March 24, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Michiya Okamura, Hiroshi Yui, Norio Matsuo, Shuji Hamano, Takeshi Hatakeyama
  • Patent number: 5096560
    Abstract: An electrode for a coulometric type of electrochemical detector, comprising a formed product of a porous, graphitic carbon having the following physical properties (1), (2) and (3):(1) an average pore diameter of 0.1 to 50 .mu.m,(2) a specific surface area of 10 m.sup.2 /g or more, and(3) an average interlaminar spacing (d.sub.002) of carbon of 3.35 to 3.42 .ANG., as determined by X-ray diffraction analysis.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: March 17, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Nobuharu Takai, Yoshiteru Kageyama, Yoshiaki Sawada, Akira Yoshida
  • Patent number: 5097080
    Abstract: A process for preparing 4,4'-dihydroxybiphenyl is disclosed, which comprises debutylation of 3,3', 5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl in an organic solvent in the presence of an acid catalyst, wherein said debutylation is carried out in the presence of water and/or a lower alcohol. The desired product can be obtained at a high purity in a high yield.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: March 17, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Masashi Inaba, Norioki Mine, Mamoru Mizutani
  • Patent number: 5096775
    Abstract: A resin laminate include: a gas barrier resin layer (layer A) made of a saponified ethylene-vinyl acetate copolymer or a polyamide resin; a layer (layer B) made of at least one type of thermoplastic resin selected from a group consisting of a polycarbonate resin, a chlorine containing resin, a thermoplastic polyester resin, an acrylic resin and a styrene resin; and an adhesive polymer layer (layer C) for bonding the gas barrier resin layer (layer A) and the layer (layer B). The adhesive polymer layer (C) is a polymer composition consisting essentially of modified polyolefin grafted with unsaturated carboxylic acid or unsaturated carboxylic anhydride and modified ethylene-vinyl acetate copolymer obtained by grafting vinyl acetate on ethylene-vinyl acetate copolymer.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: March 17, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hiroyuki Sato, Masahide Ochiumi
  • Patent number: 5094847
    Abstract: A method for producing an antibacterial molded article of polyolefin resin is described, comprising molding a polyolefin resin composition having compounded therewith 0.01% by weight or more, based on the polyolefin resin composition, of an antibacterial agent which is a zeolite containing silver to form a molded article of a desired shape, and thereafter subjecting the antibacterial surface of the molded article to a corona discharge treatment.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: March 10, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Takao Yazaki, Masataka Noro, Takashi Matsui
  • Patent number: 5091473
    Abstract: There is disclosed a resin composition comprising:(a) 28 to 78% by weight of a polyamide resin,(b) 20 to 70% by weight of a polyphenylene ether resin,(c) 2 to 40% by weight of a block copolymer composed of an alkenyl aromatic polymer and a conjugated diene polymer wherein a content of an alkenyl aromatic polymer structure unit is 10 to 45% by weight and at least 50% of a conjugated diene polymer structure unit is hydrogenated and(d) at least one compound selected from the group consisting of .alpha.,.beta.-unsaturated dicarboxylic acid, an acid anhydride and derivatives thereof with an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the sum of Components (a), (b) and (c),which has a specific dispersion state.The resin composition has excellent thermal stability and also good balance between impact strength, rigidity and high temperature rigidity with high degree.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: February 25, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Yusuke Arashiro, Shinichi Yamauchi, Hironari Sano, Takayuki Inoue, Koji Nishida
  • Patent number: 5091592
    Abstract: A process for preparing 4,4'-dihydroxybiphenyl comprising oxidizing 4,4'-diisopropylbiphenyl with molecular oxygen and decomposing the resulting oxidation product in the presence of an acid catalyst is disclosed, in which oxidation of 4,4'-diisopropylbiphenyl is carried out in the presence of ammonia or an ammonium salt. The oxidation product has an increased selectivity of 4,4'-diisopropylbiphenyl dihydroperoxide and, therefore, produces the desired product in high yield upon acid decomposition.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: February 25, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hiroshi Iwane, Takahiro Sugawara, Kimiko Kaneko
  • Patent number: 5089291
    Abstract: A method of forming a hard coat on a polyolefin base, a composite laminate or a formed article is disclosed, which comprises coating the surface of the polyolefin base with an ultraviolet-curable resin composition comprising (a) a polymer containing at least 80% by weight of methyl methacrylate and/or a modified polymer containing at least 80% by weight of methyl methacrylate and having introduced into the side chain thereof a (meth)acryloyl group, (b) a polyfunctional acrylate containing at least 50% by weight of dipentaerythritol hexaacrylate, the weight ratio of components (a) to (b) being from 1 to 10, and (c) a photopolymerization initiator, drying the coating to form an ultraviolet-curable resin layer, and curing the ultraviolet-curable resin layer by irradiation with ultraviolet light.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: February 18, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Kazuhide Hayama, Noritaka Hosokawa, Takao Yazaki, Masataka Noro