Patents Assigned to Mitsubishi Petrochemical Co., Ltd.
  • Patent number: 5191030
    Abstract: A process for producing an amino group terminated polyphenylene ether represented by the following general formula (I) ##STR1## wherein Q.sup.1 s each represents a halogen atom, a primary or secondary alkyl group, a phenyl group, an aminoalkyl group, a hydrocarbon oxy group or a halohydrocarbon oxy group; Q.sup.2 s each represents a hydrogen atom, a halogen atom, a primary or secondary alkyl group, a phenyl group, a haloalkyl group, a hydrocarbon oxy group or halohydrocarbon oxy group; R represents an aliphatic hydrocarbon group having 1 to 32 carbon atoms, an aromatic hydrocarbon group or an araliphatic hydrocarbon group; and n is a number of 10 to 500, which process comprises reacting a polyphenylene ether represented by the following general formula (II) ##STR2## wherein Q.sub.1, Q.sub.2 and n are as define above, with a primary amine halide represented by the following general formula (III)X--R--NH.sub.2 (III)wherein R is as defined above, and X represents a halogen atom.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: March 2, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Haruo Ohmura, Mitsutoshi Aritomi, Michiharu Kihira, Hiroshi Nakano
  • Patent number: 5187035
    Abstract: Disclosed is an electrode for secondary battery, which comprises an alkali metal as the active substance carried on a carrier composed of(1) 100 parts by weight of a carbonaceous material satisfying the following conditions:(A) a hydrogen/carbon atomic ratio of less than 0.15 and(B) a spacing (d.sub.002) of the (002) plane according to the X-ray wide angle diffraction method of 3.37 .ANG. or more and a crystallite size in the c-axis direction of (Lc) of 5 .ANG. or more, and0 to 70 parts by weight of a metal capable of forming an alloy with the active substance or an alloy of said metal and(2) 0.1 to 40 parts by weight of a fibrous organic polymer as the binder, which can give a negative electrode having excellent charging and discharging cycle characteristics and good flexibility to obtain secondary battery having large charging capacity.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: February 16, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Mitsutaka Miyabayashi, Manabu Hayashi
  • Patent number: 5185262
    Abstract: A DNA fragment derived from plasmid pBY503 obtained from Brevibacterium stationis IF012144, said DNA fragment containing a gene which encodes for the function of maintaining a plasmid, capable of replicating and proliferating at least in a Coryneform bacteria of the genus Brevibacterium, stably in said bacteria; and a vector DNA capable of replicating and proliferating in a Coryneform bacteria into which the above DNA fragment is introduced.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: February 9, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Keiko Kohama, Miki Kobayashi, Yasurou Kurusu, Hideaki Yukawa, Makiko Fukushima
  • Patent number: 5180766
    Abstract: A resin composition for primer use is described, which contains a copolymer of (I) a radical-polymerizable olefin resin and (c) a monomer copolymerizable with said olefin resin (I) and containing an alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer as essential ingredients, said radical-polymerizable olefin resin (I) being a product of the reaction of (a) an olefin resin having at least one functional group per molecule with (b) a radical-polymerizable monomer having a functional group reactive to the functional group contained in said olefin resin (a).A primer composition is also described.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: January 19, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Kazuhide Hayama, Kazuyuki Hata, Katsuhiko Yamada, Keizo Abe, Takahiro Ozu
  • Patent number: 5180629
    Abstract: A large-sized exterior part of an automotive vehicle, injection-molded and formed of a polymer material comprises: (A) polypropylene in an amount ranging from 50 to 70 by weight %, the polypropylene containing ethylene in an amount not more than 15 weight % relative to the polypropylene and having a MFR (at 230.degree. C.) ranging from 5 to 60 g/10 min.; (B) ethylene-propylene copolymer rubber polymerized in the presence of a vanadium-based catalyst, in an amount ranging from 5 to 30 weight %, the copolymer containing propylene in an amount ranging from 20 to 40 weight % relative to the ethylene-propylene copolymer rubber and having a Mooney viscosity ML.sub.1+4 (100.degree. C.) ranging from 20 to 80; (C) ethylene-propylene copolymer rubber polymerized in the presence of a titanium-based catalyst, in an amount ranging from 5 to 45 weight %, the copolymer containing propylene in an amount ranging from 30 to 70 weight % relative to the ethylene-propylene copolymer rubber and having a Mooney viscosity ML.sub.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: January 19, 1993
    Assignees: Nissan Motor Co., Ltd., Mitsubishi Petrochemical Co., Ltd.
    Inventors: Masahiro Terada, Nobuji Sugimoto, Toshiro Watanabe, Takashi Sugimoto
  • Patent number: 5177132
    Abstract: Disclosed is a polyalkylene terephthalate type flame retardant resin composition comprising:(A) 100 parts by weight of a polyalkylene terephthalate resin,(B) 30 to 250 parts by weight of a filler,(C) 5 to 50 parts by weight of an organic halogen compound having a glycidyl group, and(D) 5 to 50 parts by weight of sodium antimonate,wherein heat resistance is improved and change in molding stability is small even when it is exposed to high temperatures during molding.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: January 5, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hiroshi Takahashi, Seiko Nakano, Kiyoaki Okayama, Ichiro Ohkawachi
  • Patent number: 5177156
    Abstract: A process for producing a terminal-modified polyphenylene ether represented by formula (III): ##STR1## wherein Q.sup.1 represents a halogen atom, a primary of secondary alkyl group, a phenyl group, an aminoalkyl group, a hydrocarbon oxy group, or a halo-hydrocarbon oxy group; Q.sup.2 represents a hydrogen atom, a halogen atom, a primary or secondary alkyl group, a phenyl group, a haloalkyl group, a hydrocarbon oxy group, or a halo-hydrocarbon oxy group; n represents an integer of at least 10; X represents an oxygen atom or a nitrogen atom;R.sup.1 represents an alkylene group having from 1 to 12 carbon atoms; R.sup.2 and R.sup.3 each represents a hydrocarbon group having from 1 to 6 carbon atoms; s represents 1 when X is an oxygen atom, or 2 when X is a nitrogen atom; and t represents an integer of from from 1 to 3,which comprises reacting a polyphenylene ether represented by formula (I): ##STR2## wherein Q.sup.1, Q.sup.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: January 5, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Mitsutoshi Aritomi, Haruo Ohmura, Hiroshi Nakano, Michiharu Kihira, Yusuke Arashiro, Fumiyoshi Yamada, Shinako Mori, Fumiyo Ikehata
  • Patent number: 5176969
    Abstract: Disclosed is an electrode for secondary battery, which comprises lithium or an alkali metal composed mainly of lithium doped as the active substance in a carrier composed of a mixture of a carbonaceous material satisfying the following conditions (A) and an organic polymer having ion conductivity of lithium.(A) a carbonaceous material with a hydrogen/carbon (H/C) atomic ratio of less than 0.15, a spacing (d.sub.002) of the (002) plane according to the X-ray wide angle diffraction method of 3.37 to 3.75 .ANG. and a crystallite size in the c-axis direction (Lc) of 5 .ANG. or more.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: January 5, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Mitsutaka Miyabayashi, Manabu Hayashi, Eiki Yasukawa, Kikuko Miyata, Mitsumasa Kaitoh, Hiroshi Yui
  • Patent number: 5175352
    Abstract: A process for preparing 2,6-naphthalenedicarboxylic acid comprising oxidation reaction of 2,6-diisopropylnaphthalene or an oxidation product thereof with molecular oxygen in a solvent containing an aliphatic carboxylic acid in the presence of a catalyst comprising cobalt and manganese as heavy metals and a bromine compound is disclosed, in which said oxidation reaction is carried out in the presence of at least one nitrogen-containing compound selected from the group consisting of a pyridine compound, ammonia, a carboxylic acid ammonium salt, urea, a urea derivative, an amine, and a carboxylic acid amide. 2,6-Naphthalenedicarboxylic acid can be obtained at higher purity and in increased yield.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: December 29, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hiroshi Iwane, Takahiro Sugawara
  • Patent number: 5174848
    Abstract: A process for producing a propylene resin formed article with a hard coat is disclosed, comprising forming an ultraviolet-curing acrylic resin coating film on the surface of a propylene resin film or sheet, subjecting the film or sheet with the coating film to thermoforming, and irradiating the coating film to ultraviolet rays to cure said ultraviolet-curing resin, wherein said propylene resin film or sheet is composed of at least a propylene resin surface layer containing substantially no nucleating agent on which surface is coated said acrylic resin film and a thermoplastic resin base layer containing a nucleating agent which is laminated on the other side of said propylene resin surface layer prior to the thermoforming. The hard coat on the propylene resin formed article has high gloss.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: December 29, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Takao Yazaki, Masataka Noro, Takashi Matsui, Kazuhide Hayama, Noritaka Hosokawa
  • Patent number: 5164483
    Abstract: Gla.sup.17 human osteocalcin and Glu.sup.17 human osteocalcin or salts thereof are prepared by introducing .gamma.-carboxyglutamic acid into the amino acid sequence of said osteocalcin by employing a protective L-.gamma.-carboxyglutamic acid represented by the formula: ##STR1## wherein n represents 0, 1 or 2, or a salt thereof in the appropriate position in the reacting sequence of amino acids which form the osteocalcin.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: November 17, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Takashi Kurihara, Eiji Taniyama, Sachio Hirose
  • Patent number: 5160783
    Abstract: An epoxy resin-impregnated glass cloth sheet having an adhesive layer provided on at least one side of the surface thereof, characterized in that (A) said epoxy resin-impregnated glass cloth sheet is formed by impregnating glass cloth with a curable epoxy resin composition and curing it, said curable epoxy resin composition comprising an epoxy resin represented by the following structural formula (I), a brominated epoxy resin and a curing agent for epoxy resin in such an amount that the content of the epoxy resin represented by the following structural formula (I) is 5 to 50% by weight based on the amount of the entire epoxy resins and the content of bromine atom is 14 to 30% by weight based on the combined amount of the entire epoxy resins and the curing agent for epoxy resin; and (B) said adhesive layer is composed of a curable epoxy resin composition comprising an epoxy resin represented by the following structural formula (I), a brominated epoxy resin, an acrylonitrile/butadiene copolymer having carboxyl
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: November 3, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Yousui Nemoto, Akiyoshi Itoh, Toshimi Kohmura, Yasuhiro Horiba
  • Patent number: 5159008
    Abstract: A thermoplastic resin composition comprising:30 to 60 parts by weight of a polyphenylene ether which is a mixture of a high viscosity polyphenylene ether (A) with an inherent viscosity (.eta.A) of 0.4 dl/g to 1.0 dl/g and a low viscosity polyphenylene ether (B) with an inherent viscosity (.eta.B) of 0.25 dl/g to less than 0.4 dl/g at a weight ratio of (A)/(B) of 10/90 to 90/10 based on 100 parts by weight of the total of (A), (B) and (C),40 to 70 parts by weight of a polyamide (C) with a relative viscosity (.eta.) of 1.0 to 8.0 based on 100 parts by weight of the total of (A), (B) and (C),0.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: October 27, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Koji Nishida, Yoshihiro Kurasawa, Suetsugu Kakiichi, Shohji Yoshino
  • Patent number: 5155263
    Abstract: A process for preparing .alpha.-ketobutyric acid comprising contacting 1,2-butanediol with molecular oxygen in the presence of a platinum catalyst is disclosed. The process produces .alpha.-ketobutyric acid in high yield at low cost.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: October 13, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Makoto Imanari, Hiroshi Iwane, Masashi Suzuki, Naoki Suzuki
  • Patent number: 5153247
    Abstract: There is disclosed a polycarbonate composition which comprises having a melt flow rate of 5 to 50 g/10 min and composed of:(a) 30 to 65 parts by weight of a thermoplastic aromatic polycarbonate,(b) 70 to 35 parts by weight of glass fibers with an average diameter of 3 to 15 .mu.m, and(c) 0.01 to 15 parts by weight of at least one component selected from the group consisting of (c-1) to (c-3) shown below formulated therein based on 100 parts by weight of the total amount of (a) and (b):(c-1) 0.3 to 10 parts by weight of a brominated polystyrene with an average particle size of 0.1 to 50 .mu.m;(c-2) 0.3 to 10 parts by weight of zinc sulfide with an average particle size of 0.1 to 50 .mu.m; and(c-3) 0.01 to 5 parts by weight of a melamine-cyanuric acid adduct with an average particle size of 0.1 to 50 .mu.m.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: October 6, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Michiya Okamura, Hiroshi Yui, Takeshi Hatakeyama, Michio Ohmori, Kouich Sagisaka, Kazuyuki Hata, Katsuhiko Yamada, Kazuhide Hayama
  • Patent number: 5153123
    Abstract: A method for producing L-threonine, which comprises subjecting at least L- or DL-aspartic acid or a salt thereof to enzymatic reaction according to the reaction system not accompanied with growth of microorganism cells in an aqueous solution in the presence of a microorganism and collecting L-threonine formed, wherein the microorganism is a biotin-requiring microorganism for the growth belonging to coryneform bacterium; a plasmid comprising a DNA fragment containing at least a gene encoding biosynthesis of threonine which can be expressed within a biotin-requiring microorganism cell for the growth belonging to coryneform bacterium and a DNA fragment containing a gene encoding autonomous replication within coryneform bacterium cell; and a biotin-requiring microorganism for the growth belonging to coryneform bacterium which has been transformed with the plasmid described above, both of which are employed in the present method.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: October 6, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Masato Terasawa, Terukazu Nara, Makiko Fukushima, Yukie Satoo, Mitsunobu Shimazu, Hideaki Yukawa, Yasurou Kurusu, Keiko Kohama
  • Patent number: 5151324
    Abstract: Pattern coloring material for synthetic resins, comprising particulate matter of a cross-linked olefin polymer containing pigment, which is useful as a material for producing synthetic resin molded products with colored patterns. The material is produced by kneading crosslinkable olefin polymer with pigment, granulating the kneaded mixture and subjecting the particulate matter thereby obtained to a cross-linking treatment.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: September 29, 1992
    Assignees: Mitsubishi Petrochemical Co., Ltd., O.K.-Kasei Co., Ltd.
    Inventors: Tadashi Hanatani, Satoru Sanzen, Jichio Deguchi
  • Patent number: 5149651
    Abstract: Microorganisms of the genus Pseudomonas containing aspartate beta-decarboxylase at a high level are produced by culturing said microorganism in a medium supplemented with a chelating agent. L-Alanine can be efficiently produced from L-aspartic acid said microorganisms or the treated product thereof.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: September 22, 1992
    Assignee: Mitsubishi Petrochemical. Co., Ltd.
    Inventors: Makoto Goto, Terukazu Nara, Yasukazu Uchida, Masato Terasawa, Hideaki Yukawa, Hisashi Yamagata
  • Patent number: 5149580
    Abstract: There is disclosed an organic nonlinear optical material which comprises a polymer having the following constitutional units, in amounts of 5 to 100 mole % of (I), 0 to 50 mole % of (II) and 0 to 50 mole % of (III), and a weight average molecular weight (Mw) of the polymer being 10,000 to 2,000,000: ##STR1## wherein m, n, X, Y and A have the meanings as defined in the specification, ##STR2## wherein R.sup.2 represents an alkyl group, and ##STR3## A nonlinear optical element which is tough with wide surface as well as having large nonlinear optical effect can be obtained.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: September 22, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Manabu Kishimoto, Iwao Seo, Atsushi Oda, Yukiko Ohashi, Dechun Zou
  • Patent number: 5141615
    Abstract: An entrance chamber is provided adjacent a plating chamber at a substantially same level as the plating chamber. A carrier is provided for supporting a jig for hanging a workpiece and for conveying the jig between the entrance chamber and the plating chamber. A conveying device is provided in the plating chamber for conveying the jig between the carrier and a plating tank in the plating chamber for performing the plating of the workpiece.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: August 25, 1992
    Assignees: Nisshin Steel Co., Ltd., Mitsubishi Petrochemical Co., Ltd., C. Uyemura & Co., Ltd.
    Inventors: Isao Saeki, Setsuko Takahashi, Masayoshi Tatano, Asakawa Kiyoshi, Yutake Sugiura, Jyun Mori, Tadaaki Narada