Patents Assigned to Mitsubishi Chemical
  • Preparation of solid titanium trichloride
    Patent number: 4115532
    Abstract: Solid titanium trichloride in the form of fine granules having low aluminum compound content, which is suitable as a catalyst for polymerization of .alpha.-olefins, especially, propylene is obtained as a precipitate by heating liquefied titanium trichloride in the presence of a liberating agent, and separating the thus formed precipitate. The liquefied titanium trichloride is preferably prepared with an reducing titanium tetrachloride by organic aluminium compound in the presence of ether and hydrocarbon.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: September 19, 1978
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Kazuo Yamaguchi, Genjiro Kakogawa, Masayoshi Hasuo, Nobuaki Goko, Yasuo Maruyama
  • Method of treating combustion exhaust gas containing nitrogen oxides
    Patent number: 4113838
    Abstract: A method of treating a combustion exhaust gas containing nitrogen oxides comprises:A first step of removing nitrogen oxides by treating a mixture of the exhaust gas, oxygen and ammonia in the absence of hydrogen or in the presence of lower than 10 mole ratio of hydrogen to ammonia at a temperature from 700.degree. C to 1300.degree. C andA second step of adjusting a mole ratio of hydrogen to ammonia in the pretreated exhaust gas to higher than 3 and treating the mixed gas at a temperature from 490.degree. C to 700.degree. C.
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: September 12, 1978
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Sakae Koike, Shoichi Matsunami, Yorinobu Goto, Yoshio Tanabe
  • Process for the renewal of an insolubilized glucose isomerase
    Patent number: 4113568
    Abstract: There is disclosed a process for the renewal of a deactivated insolubilized glucose isomerase which comprises subjecting an insolubilized glucose isomerase adsorbed onto an anion exchange resin, which has been used for isomerization of glucose into fructose to decrease its activity, to treatments by an aqueous mineral acid solution in combination with an aqueous alkaline solution, an aqueous electrolytic salt solution, an aqueous mineral acid or a mixture thereof to release adsorbed materials from the resin which is converted into a salt type and adsorbing fresh glucose isomerase to the regenerated resin to recover the activity of the insolubilized glucose isomerase.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: September 12, 1978
    Assignees: Mitsubishi Chemical Industries, Ltd., Seikagaku Kogyo Co., Ltd.
    Inventors: Yoshimasa Fujita, Akiyoshi Matsumoto, Isao Miyachi, Nobuo Imai, Isao Kawakami, Tadashi Hishida, Akira Kamata
  • Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids
    Patent number: 4111932
    Abstract: Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids are prepared and shown to be useful as antibacterial agents.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: September 5, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yoshiharu Morita, Kenzo Omata, Junichi Ohya, Kazuo Wagatsuma, Tadashi Shirasaka
  • Process for producing alkylene glycol esters
    Patent number: 4112241
    Abstract: Alkylene glycol esters are produced by the reaction of an olefin, a carboxylic acid and molecular oxygen employing an iodine-containing substance and a nitrogen oxide as a catalyst.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: September 5, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Takeshi Okano, Naoto Wada, Yoshimitsu Kobayashi
  • Modification of water-soluble acrylic polymer
    Patent number: 4110520
    Abstract: Modification reaction of water-soluble polymers such as hydrolysis, sulfomethylation, the Hofmann degradation or the Mannich reaction of polyacrylamide are carried out by dispersing the polymer in an aqueous solution of water soluble salt of an alkali metal or magnesium and a di or polybasic inorganic acid and contacting the dispersed polymer with a modifying agent.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: August 29, 1978
    Assignees: Kyoritsu Yuki Co., Ltd., Mitsubishi Chemical Industries Limited
    Inventor: Tohru Miyajima
  • N.sup.2 -Arylsulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof
    Patent number: 4108986
    Abstract: N.sup.2 -arylsulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof have been found to be effective as pharmaceutical agents for the inhibition and suppression of thrombosis in mammals.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: August 22, 1978
    Assignees: Mitsubishi Chemical Industries Limited, Shosuke Okamoto
    Inventors: Shosuke Okamoto, Akiko Hijikata, Ryoji Kikumoto, Yoshikuno Tamao, Kazuo Ohkubo, Tohru Tezuka, Shinji Tonomura
  • Method for preservation of aqueous glucose isomerase solution
    Patent number: 4106993
    Abstract: A method for preservation of an aqueous glucose isomerase solution is disclosed in which an aqueous glucose isomerase solution is mixed with a an alkaline material to adjust its pH value within a range of from 9 to 12 whereby the aqueous solution can be stored at room temperature for a period not less than three days without microbial contamination, putrefaction, denaturation and deactivation of the glucose isomerase.
    Type: Grant
    Filed: March 15, 1977
    Date of Patent: August 15, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Tetsuya Hirota, Tadashi Hishida, Akira Kamata, Isao Nakazawa, Hiroshi Takamisawa
  • Process for producing a cylic ether from an acetic ester of a 1,4-glycol
    Patent number: 4105679
    Abstract: A process for producing tetrahydrofuran or dihydrofuran from an acetic ester of 1,4-butanediol or 1,4-dihydroxybutene-2 is disclosed in which the raw material liquid acetic ester and steam are reacted in the presence of an acid catalyst in a plurality of reaction zones in liquid-gas countercurrent contact, a gaseous fraction containing the product cyclic ether is recycled to the preceding reaction zone while a liquid fraction containing unreacted raw material is transferred into the succeeding zone and the product cyclic ether is recovered from the gaseous fraction discharged from the first zone by distillation whereby the conversion of the acetic ester into the cyclic ether is improved.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: August 8, 1978
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventor: Yasuo Tanabe
  • Process for removing water from water soluble polymer
    Patent number: 4105510
    Abstract: The invention relates to an improved process for removing water, under elevated temperature, from aqueous gel of water soluble polymer, such as polymer or copolymer of acrylamide and/or quaternary ammonium salts of dialkylaminoamlkylmethacrylate, to prevent from the deterioration of polymer properties. The process is accomplished by addition of polyhydric phenols, benzoquinones or derivatives thereof prior to removal of water.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: August 8, 1978
    Assignees: Kyoritsu Yuki Co., Ltd., Mitsubishi Chemical Industries Ltd.
    Inventors: Atsuo Tago, Ryoichi Yamanaka, Susumu Matsumoto
  • Selective extraction of yttrium ions
    Patent number: 4104358
    Abstract: Yttrium ions are selectively extracted by contacting an acid phosphoric ester with an aqueous solution containing diethylenetriaminepentaacetic acid and yttrium ions and one or more heavy rare earth (atomic number of 64 to 71) ions.
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: August 1, 1978
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Yukinori Minagawa, Tsugio Kaneko, Fumikazu Yajima, Kunihiko Yamaguchi, Toshihiko Yoshitomi
  • N.sup.2 -naphthalenesulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof, and antithrombotic compositions and methods employing them
    Patent number: 4104392
    Abstract: N.sup.2 -naphthalenesulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof have been found to be effective as pharmaceutical agents for the inhibition and suppression of thrombosis.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: August 1, 1978
    Assignees: Mitsubishi Chemical Industries Ltd., Shosuke Okamoto
    Inventors: Shosuke Okamoto, Akiko Hijikata, Ryoji Kikumoto, Yoshikuni Tamao, Kazuo Ohkubo, Tohru Tezuka, Shinji Tonomura
  • Polyester films
    Patent number: 4101523
    Abstract: A polyester film is disclosed which comprises a polyester mainly consisting of polyethylene terephthalate and an additive amount of granular calcium terephthalate anhydride particles having a specific volume shape factor. The average particle diameter and additive amount of the granular calcium terephthalate anhydride particles may be controlled so that the film is particularly suitable as a metallized film or a condenser film.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: July 18, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Masamichi Watanabe, Takuo Nakahara, Seiji Sakamoto, Kunio Bizen, Akikazu Yano, Yuzo Otani
  • 2-Aminomethyl-5-phenyloxazoles and the pharmaceutically acceptable acid addition salts thereof
    Patent number: 4101660
    Abstract: 2-Aminomethyl-5-phenyloxazoles and the pharmaceutically acceptable salts thereof have been found to be effective for meliorating inflammation in warm blooded animals.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: July 18, 1978
    Assignees: Mitsubishi Chemical Industries Limited, Nippon Shinyaku Company, Limited
    Inventors: Sho Inoue, Katsuya Ohata, Satoshi Tsutsui, Tatsuo Nomura
  • N.sup.2 -arylsulfonyl-argininamides and the pharmaceutically acceptable salts thereof
    Patent number: 4101653
    Abstract: N.sup.2 -arylsulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof have been found to be effective as pharmaceutical agents for the inhibition and suppression of thrombosis in mammals.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: July 18, 1978
    Assignees: Mitsubishi Chemical Industries Limited, Shosuke Okamoto
    Inventors: Shosuke Okamoto, Akiko Hijikata, Ryoji Kikumoto, Yoshikuni Tamao, Kazuo Ohkubo, Tohru Tezuka, Shinji Tonomura
  • Process for the microbiological oxidation of steroids
    Patent number: 4101378
    Abstract: The improvement in a process for the production of 17-hydroxyandrosta-1,4-dien-3-one and androsta-1,4-diene-3,17-dione by the microbiological oxidation of a sterol, its 4-en-3-one derivative or its 1,4-dien-3-one derivative, which comprises adding to the culture medium at least one glyceride-containing substance selected from the group consisting of glycerides, fats, oil seeds and oil fruits in an amount sufficient that the culture medium contains at least 0.3 percent by weight of glycerides.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: July 18, 1978
    Assignees: Mitsubishi Chemical Industries Limited, Noda Institute for Scientific Research
    Inventors: Daikichiro Nishikawa, Yukio Imada, Masayuki Kinoshita, Katsuhiko Takahashi, Hajime Machida, Michitaro Nagasawa
  • Dye image forming process using shifted azo dye developer
    Patent number: 4099972
    Abstract: A process for forming a dye image on a receiving element by diffusion transfer from a photosensitive element is disclosed wherein the exposed photosensitive element is processed with an alkaline solution in the presence of a particular dye developer having at least one azo radical.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: July 11, 1978
    Assignees: Mitsubishi Chemical Industries Limited, Konishiroku Photo Industry Co., Ltd.
    Inventors: Yuzuru Sato, Ryuichiro Kobayashi, Naoshi Kunieda, Kazumasa Watanabe, Noboru Mizukura, Kenji Yoshida, Tadanori Oya
  • Pharmaceutically active 2-omega-aminoalkoxydiphenylmethylmethanes
    Patent number: 4100299
    Abstract: 2-Omega-aminoalkoxydiphenylmethylmethanes have been found useful for palliating conditions of depression in warm blooded animals.
    Type: Grant
    Filed: June 1, 1977
    Date of Patent: July 11, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Shinji Tonomura, Hidenobu Ikoma
  • Process for blending liquid rubber and carbon black
    Patent number: 4098715
    Abstract: Carbon black and liquid rubber are blended to form a dispersion by mixing 60 to 150 parts by weight of the carbon black with 100 parts by weight of the liquid rubber to form an initial dispersion of the carbon black in the liquid rubber and diluting the dispersion with additional liquid rubber to prepare a composition having the required carbon black content.
    Type: Grant
    Filed: August 11, 1976
    Date of Patent: July 4, 1978
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Tatsuo Masuko, Osami Yanagida, Shunji Yamamoto
  • N.sup.2 -arylsulfonyl-l-argininamides and the pharmaceutically acceptable salts thereof
    Patent number: 4097472
    Abstract: N.sup.2 -arylsulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof have been found to be effective as pharmaceutical agents for the inhibition and suppression of thrombosis in mammals.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: June 27, 1978
    Assignees: Mitsubishi Chemical Industries Limited, Shosuke Okamoto
    Inventors: Shosuke Okamoto, Akiko Hijikata, Ryoji Kikumoto, Yoshikuno Tamao, Kazuo Ohkubo, Tohru Tezuka, Shinji Tonomura