Patents Assigned to Mitsubishi Chemical Industries, Limited
  • Patent number: 5189105
    Abstract: A C.sub.9 alcohol mixture used to make a plasticizer obtained by the hydroformylation and hydrogenation of a C.sub.8 olefin mixture as the starting material obtained by the dimerization of a butene fraction, said alcohol mixture comprising from 8 to 50% by weight of a first group component having a retention time not longer than the retention time of isobutyl n-caprylate, from 8 to 40% by weight of a second group component having a retention time longer than that of isobutyl n-caprylate and not longer than that of methyl n-caprate and from 20 to 80% by weight of a third group component having a retention time longer than that of methyl n-caprate, as divided into such three components by gas chromatography using a capillary column packed with a polyethylene glycol having a number average molecular weight of 15,000 to 20,000 as an isomer separating agent.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: February 23, 1993
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Chihiro Miyazawa, Souichi Orita, Akio Tsuboi
  • Patent number: 5177254
    Abstract: A method for producing an unsaturated glycol diester by reacting molecular oxygen, a carboxylic acid and a conjugated diene in the presence of a solid catalyst containing palladium and tellurium supported on a carrier, wherein an active carbon with the total pore volume of pores having radii of from 18 to 100,000 .ANG. being at least 0.45 cc/g and with the volume of pores having radii of at least 3,000 .ANG. constituting at least 50% of the total pore volume, is used as the carrier for the solid catalyst.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: January 5, 1993
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Junzo Haji, Ichiro Yokotake, Takahiro Yamaguchi, Masato Sato, Nobuyuki Murai
  • Patent number: 5116739
    Abstract: The invention provides DNA fragments coding for human apolipoprotein E or human apolipoprotein E-like substances having physiological activities equivalent to those of said human apolipoprotein E, expression vectors suitable for production of such proteins, hosts for use in the production, and process for the production, as well as such proteins thereby produced.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: May 26, 1992
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yutaka Teranishi, Nobuhiko Takamatsu, Yasushi Matsui, Masako Kimura, Yasuko Ikeda, Yuuki Morimoto
  • Patent number: 5013474
    Abstract: A liquid crystal display device of the type in which thermo-writing is performed by means of irradiation of laser beams, the display device including a laser-sensitive liquid crystal composition exhibiting a maximum absorption at or near the wavelength of the impinging laser beam with which the display device is to be used. The specific improvement of the present invention comprises including in the liquid crystal composition at least two types of laser-responsive dyes, each being present in an amount less than its solubility limit in the liquid crystal composition, and each of the dyes evidencing a maximum absorption at or near the wavelength of the laser beam. In an embodiment, the dyes are chosen from the class of squarilium dyes.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: May 7, 1991
    Assignees: Sony Corporation, Mitsubishi Chemical Industries Limited
    Inventors: Kunihiko Arai, Tetsuo Urabe, Tetsuya Morita, Konoe Miura, Tetsuo Ozawa, Junko Iwanami
  • Patent number: 4985171
    Abstract: An anthraquinone type compound which is represented by the following general formula (I) and which exhibits yellow to orange-colored hue; and a composition for liquid crystal display element obtained by dissolving the compound into liquid crystal: ##STR1## (where: X.sup.1 and X.sup.2 denote sulfur or selenium; and R.sup.1 and R.sup.2 represent a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted pyridyl group, a substituted or unsubstituted pyrmidyl group or a tetrahydronaphthyl group, with the following exceptions:(1) X.sup.1 =X.sup.2 =S; R.sup.1 =R.sup.2 =a substituted or unsubstituted phenyl group =(2) X.sup.1 =X.sup.2 =S; R.sup.1 =a substituted or unsubstituted naphthyl group; R.sup.2 =a phenyl group or a naphthyl group(3) X.sup.1 =X.sup.2 =Se; R.sup.1 =R.sup.2 =a tetrahydronaphthyl group).
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: January 15, 1991
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Konoe Miura, Tetsuo Ozawa, Junko Kanaya
  • Patent number: 4977230
    Abstract: A heat-resistant film or sheet produced by melt extruding polyether ketone having an intrinsic viscosity of at least 0.4 dl/g, which is obtained by heat treating an unstretched film or sheet which comprises (i) heat-treating to crystallization being not more than 60%, or (ii) uni- or biaxially stretching under specific conditions to an extent in which a stress at 5% elongation in the stretched direction is at least 13 kg/mm.sup.2 ; an initial elastic modulus in the stretched direction is at least 600 kg/mm.sup.2 ; and thermal shrinkages in a lengthwise direction and its vertical direction are not more than 4%.The film or sheet of the present invention is excellent in such properties as heat resistance, mechanical strength and the like, and is suitable for use as a substrate for magnetic recording or electric insulation.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: December 11, 1990
    Assignees: Mitsubishi Chemical Industries Limited, Diafoil Company, Limited
    Inventors: Seiichi Nozawa, Shigeo Utsumi, Michio Nakata
  • Patent number: 4966966
    Abstract: A process for preparing a sucrose fatty acid ester by interesterification between sucrose and a lower alkanol ester or glyceride of a fatty acid in the presence of an ion exchange resin is disclosed, wherein said ion exchange resin is a cation exchange resin having a carboxyl group having been ion-exchanged with an alkali metal and/or an alkaline earth metal. A sucrose fatty acid can be prepared in a high yield through a simplified recovery and purification step.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: October 30, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Keisuke Wada, Kazuhiko Onuma, Takashi Ushikubo, Tsuyoshi Ito
  • Patent number: 4956256
    Abstract: A photosensitive member for electrophotography comprising a photosensitive layer on a conductive substrate, said photosensitive layer containing as a binder resin a modified polycarbonate resin having the repeating structural units represented by the following general formula (1) and (2); ##STR1## wherein R.sup.1 and R.sup.2 are selected from a hydrogen atom, an alkyl group having 1-3 carbon atoms and a halogen atom, at least one of R.sup.1 and R.sup.2 being the alkyl or the halogen atom, and ##STR2## the ratio of the repeating structural unit of the general formula (1) to that of the general formula (2) being at least 20:80. This photosensitive member is highly resistant to mechanical wear and the deterioration of sensitivity and chargeability.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: September 11, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Shigenori Ohtsuka, Hiroshi Urabe, Masahiro Nukui, Mamoru Nozomi, Setsuko Sasakawa
  • Patent number: 4956375
    Abstract: Disclosed herein is an N-indanyl carboxamide derivative as a novel compound, represented by the following general formula (I): ##STR1## wherein A represents a group of the formula, ##STR2## (wherein X represents a halogen atom, a methyl group, or a trifluoromethyl group, Y represents a hydrogen atom, a halogen atom, a lower alkyl group, an amino group, a mercapto group, or a lower alkylthio group, R.sup.1 represents a methyl group or a trifluoromethyl group, and R.sup.2 and R.sup.3 independently represents a hydrogen atom or a methyl group), R represents a lower alkyl group, and n is an integer in the range of 1 to 6, and an agricultural/horticultural fungicide comprising said N-indanyl carboxamide derivative as an active ingredient.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: September 11, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Masatsugu Oda, Toshiro Sakaki, Naoko Sasaki, Hirofumi Tomita, Nobuyuki Nonaka
  • Patent number: 4937083
    Abstract: A feed additive for ruminants, which comprises core containing a carbamate of a basic amino acid and coated with a polymer coating agent soluble or swellable in water in an acidic region of a pH of at most 5.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: June 26, 1990
    Assignees: Mitsubishi Chemical Industries Limited, Ajinomoto Company, Incorporated
    Inventors: Takaharu Itagaki, Hiroyoshi Okada, Masao Miyake, Takaaki Kobayashi, Takahumi Tosa, Hiroyuki Satou
  • Patent number: 4933257
    Abstract: Disclosed herein is an antistatic photo-resist containing an antistatic agent. Since antistatic photo-resist according to the present invention is hardly charged, it can be suitably used as a mask in implanting ions into semiconductor substrate.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: June 12, 1990
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Chemical Industries Limited
    Inventors: Konoe Miura, Tameichi Ochiai, Yasuhiro Kameyama, Tooru Koyama, Takashi Okabe, Tomoharu Mametani
  • Patent number: 4921959
    Abstract: An anthraquinone compound represented by formula: ##STR1## wherein R and X are as defined in the specification, and a polarizing film containing the same. The anthraquinone compound exhibits satisfactory compatibility with organic polymers and high dichroism, and the polarizing films have excellent performance characteristics.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: May 1, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Konoe Miura, Tetsuo Ozawa, Seigo Okumura, Shinji Kubo
  • Patent number: 4912013
    Abstract: A photosensitive composition principally comprised of a photosensitive diazo resin and a lipophilic high molecular compound, wherein said photosensitive composition further contains a metal complex dye soluble in an organic solvent. Also disclosed is a photosensitive lithographic printing plate employing such a photosensitive composition.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: March 27, 1990
    Assignees: Konishiroku Photo Industry Co., Ltd., Mitsubishi Chemical Industries Limited
    Inventors: Norihito Suzuki, Kiyoshi Goto, Yoshihiro Maeda, Shigeki Shimizu
  • Patent number: 4902525
    Abstract: A sweetener composition comprising mesoerythritol and various nonsugar sweetener(s) which are employed for modifying the taste of the mesoerythritol. The sweetener composition of the present invention, which exhibits a sweetness closely similar to that of sugar, is a low-caloric and non-nutritive product and available in sweetening, for example, various foods.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: February 20, 1990
    Assignees: Mitsubishi Chemical Industries Limited, Nikken Chemicals Company, Limited
    Inventor: Tsutomu Kondou
  • Patent number: 4900843
    Abstract: A method of dehalogeno-dimerizing an aromatic halide compound substituted by at least one halogen atom substituted on the aromatic ring using a palladium catalyst on support in the presence of water, a reducing agent and a halogen acceptor is disclosed. The method is characterized by using the palladium catalyst on support immersed in a hydrohalogenic acid prior to the dehalogeno-dimerization reaction.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: February 13, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Mitsumasa Kitai, Yoshio Katsuro, Shigenori Kawamura, Masumi Hino, Keiichi Sato
  • Patent number: 4895983
    Abstract: A process for producing a methylol urea solution which comprises carrying out addition reaction between urea and formaldehyde in the presence of water and an alkali, wherein said alkali is a polyphosphoric acid salt; and a process for producing a slow-releasing nitrogenous fertilizer which comprises subjecting the resulting methylol urea solution to dehydration condensation and drying the resulting condensate are disclosed. The methylol urea solution undergoes no substantial pH variation with time either during or after the addition reaction, and the fertilizer obtained therefrom is excellent in slow-releasing properties.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: January 23, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Kiyoshi Nakayama, Hiroshi Aoki, Hisato Saitoh
  • Patent number: 4895890
    Abstract: A calcium silicate shaped product comprising a calcium silicate hydrate, a carboxyl group-containing copolymer latex, a coupling agent and a carbon fiber.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: January 23, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Takeo Sawanobori, Mitsuru Swata, Noriyuki Ariyama, Yuji Noguchi
  • Patent number: 4892955
    Abstract: A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein said catalyst is a ruthenium catalyst comprising (1) ruthenium, (2) an organic phosphine and (3) a conjugate base of an acid having a pKa of less than 2.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: January 9, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Keisuke Wada, Yoshinori Hara, Koushi Sasaki
  • Patent number: 4890930
    Abstract: In an automatic sample supply apparatus which holds a plurality of sample vessels in a waiting station in a matrix pattern and which includes a plurality of rows of sample vessels, sends out the sample vessels in the front row laterally one by one to a sampling station, returns the sample vessels which have finished the required treatment to the waiting station, and advances the sample vessels in the rearmost row in the waiting station collectively as a whole in one step corresponding to one row when all the sample vessels in the front row of the waiting station have been sent out, a suction needle for drawing up the sample in a sample vessel which can penetrate a rubber stopper secured to the sample vessels is employed.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: January 2, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventor: Hidenori Nohso
  • Patent number: 4883848
    Abstract: A method for producing an olefin polymer, which comprises polymerizing or copolymerizing an olefin in the presence of a catalyst comprising (a) a titanium-containing solid catalyst component and (b) an organic metal compound of a metal of Groups I-III of the Periodic Table, said solid catalyst component (a) being obtained by treating (A) a magnesium compound of the formula Mg(OR.sup.1).sub.n (OR.sup.2).sub.2-n wherein each of R.sup.1 and R.sup.2 is an alkyl group, an aryl group or an aralkyl group, and n is 2.gtoreq.n.gtoreq.0, with three compounds i.e. (B) an electron donative compound, (C) a silicon compound of the formula Si(OR.sup.3).sub.4 wherein R.sup.3 is an alkyl group, an aryl group or an aralkyl group and (D) a titanium compound.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: November 28, 1989
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yoshinori Suga, Eiji Tanaka, Yasuo Maruyama, Eiji Isobe