Patents Assigned to Mitsubishi Chemical Industries, Limited
  • Alkylenedioxybenzene derivatives and acid addition salts thereof
    Patent number: 4684739
    Abstract: Alkylenedioxybenzene derivatives are prepared and found to be useful as pharmaceutical agents, particularly as hypotensives.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Harukazu Fukami, Kenichiro Nakao, Mamoru Sugano
  • Hydrocarbon terminated polyamide resin and process for producing the same
    Patent number: 4684713
    Abstract: Disclosed herein are a polyamide resin of a relative viscosity of from 2.5 to 6, having hydrocarbon group(s) of 6 to 22 carbon atoms as the end group(s) thereof, the number of the hydrocarbon group(s) being 40 to 100% of the total number of the end groups of the polyamide, and a process for producing the polyamide resin.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Katsuhisa Kohyama, Masaaki Miyamoto, Hidemi Nakanishi, Norimichi Koga
  • Process for preparation of phthalide derivatives
    Patent number: 4684732
    Abstract: Disclosed herein is a process for preparing phthalide derivatives represented by the general formula (IV): ##STR1## wherein R.sup.1 to R.sup.7 are herein defined, comprising (i) reacting a nitrophthalide of the general formula (I) defined herein with an isoquinoline of the general formula (II) defined herein, and (ii) reducing the resultant phthalideisoquinoline of the general formula (III) defined herein. The process is characterized in (A) that the reaction defined in (i) is carried out in methanol, and/or (B) that the nitrophthalide of the general formula (I) is a nitrophthalide obtained by a reaction of a phthalide of the general formula (V) defined herein with copper nitrate or zinc nitrate.
    Type: Grant
    Filed: March 5, 1985
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Masao Taniguchi, Yoshiharu Morita, Shuzo Hayakawa, Osamu Kawashima
  • Alkylenedioxybenzene and acid addition salts thereof useful as hypotensives
    Patent number: 4684651
    Abstract: Alkylenedioxybenzene derivatives are prepared and found to be useful as pharmaceutical agents, particularly as hypotensives.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Harukazu Fukami, Kenichiro Nakao, Mamoru Sugano
  • Method for production of fiber-reinforced metal composite material
    Patent number: 4681151
    Abstract: A method for production of fiber-reinforced metal composite material having high fiber content, wherein a bundle of fiber material is impregnated with water, then this water-impregnated fiber bundle is subjected to compression and freezing to form a high density fiber shaped body, subsequently, the high density fiber shaped body is subjected to thawing and drying, while maintaining its shape as compressed, and finally molten metal is infiltrated into the fiber shaped body.
    Type: Grant
    Filed: September 26, 1986
    Date of Patent: July 21, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yoshihiro Koya, Toshiaki Katayama
  • Method for producing an electrophotographic element
    Patent number: 4680246
    Abstract: A method for holding a hollow cylindrical body without a bottom without contacting the outside surface thereof and immersing the body in a liquid with which the outside surface of the cylindrical body is to be coated and preventing the liquid from contacting the inside wall of the cylindrical body. The method utilizes a device which includes device an inflatable elastic membrane which tightly contacts the inside wall of the cylindrical body so as to hold the body when it is inflated by supply of compressed fluid. The process for producing an electrophotographic element includes the steps of holding the hollow cylindrical body without a bottom, immersing the cylindrical body in a liquid containing a photosensitive material and separating the cylindrical body from the liquid to form a uniform photosensitive layer only on the outside surface thereof.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: July 14, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Motohisa Aoki, Hironobu Iwanaga
  • Method for assaying antigen-antibody reactions and reagent thereof
    Patent number: 4672045
    Abstract: There are disclosed a method for assaying antigens or antibodies in the reaction medium, characterized in that a sample containing antigens or antibodies to be assayed is treated with a polyanion which is soluble in the reaction medium and thus treated sample is used for the antigen-antibody reaction; and a reagent for assaying an antigen-antibody reaction, which contains a polyanion and a reaction medium.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: June 9, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Satoshi Tsutsui, Tadamitsu Sudo, Michio Ito
  • N.sup.2 -dansyl-L-arginine derivatives, and the pharmaceutically acceptable acid addition salts thereof
    Patent number: 4670420
    Abstract: N.sup.2 -dansyl-L-arginine esters and amides having the formula ##STR1## or the acid addition salts thereof with a pharmaceutically acceptable acid, wherein R is selected from the group consisting of (1) alkoxy, alkenyloxy, alkynyloxy, and cycloalkoxy, respectively, containing not more than 10 carbon atoms, aralkyl of not more than 15 carbon atoms, tetrahydrofurfuryloxy, and alkoxy of not more than 10 carbon atoms substituted with an alkoxy group of not more than 10 carbon atoms, halogen or nitro; (2) ##STR2## wherein R.sub.1 and R.sub.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: June 2, 1987
    Assignees: Mitsubishi Chemical Industries Limited, Shosuke Okamoto
    Inventors: Shosuke Okamoto, Ryoji Kikumoto, Yoshikuni Tamao, Shinji Tonomura, Kazuo Ohkubo
  • 2-Phenylalkyl-3-aminoalkyl-4(3H)-quinazolinone compound
    Patent number: 4668682
    Abstract: Disclosed are a 2-phenylalkyl-3-aminoalkyl-4(3H)-quinazolinone compound of Formula (1): ##STR1## wherein, X represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a phenoxy group, a benzyloxy group, a halogen atom or a hydroxy group; Y represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a benzyloxy group, a halogen atom or a nitro group; R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; R.sup.2 represents an alkyl group having 1 to 5 carbon atoms or a group of Formula (2) ##STR2## [wherein, Z represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms or a halogen atom; d is an integer of 1 to 3; and l is an integer of 1 to 5]; or R.sup.1 and R.sup.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: May 26, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Tetsuo Sekiya, Mikio Tsutsui, Daijiro Horii, Akira Ishibashi
  • 4-phenylphthalazine derivatives, their preparation and their use as pharmaceuticals
    Patent number: 4668677
    Abstract: Certain new 1-alkylamino-4-phenylphthalazine derivatives, 1-neopentylamino-4-phenylphthalazine and 1-(1-ethylpropylamino)-4-phenylphthalazine, having prominent activity to ameliorate circulatory disorders and prepared from the corresponding phthalazinones.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: May 26, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yasuhiro Morinaka, Katsuhiko Iseki, Toshiji Kanayama, Toshiaki Watanabe, Hiroyoshi Nishi
  • Method for producing monosilane and a tetraalkoxysilane
    Patent number: 4667047
    Abstract: A method for producing monosilane and a tetraalkoxysilane by disproportionation of an alkoxysilane, which comprises contacting an alkoxysilane having the formula:H.sub.n Si(OR).sub.4-n (I)wherein R is a lower alkyl group and n is an integer of 1 to 3, with a catalyst selected from the group consisting of a platinum group metal, a compound of a platinum group metal, an anion exchange resin, alumina, silica alumina and zeolite containing a metal of Group Ia of the periodic table.
    Type: Grant
    Filed: May 7, 1986
    Date of Patent: May 19, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Naoshi Imaki, Junzo Haji, Yoko Misu
  • Pyridazinone derivatives and salts thereof as cardiac stimulants
    Patent number: 4661484
    Abstract: There are provided novel pyridazinone derivatives having the general formula (I): ##STR1## wherein A represents 5- or 6-membered heterocyclic ring having 1-3 nitrogen atoms, which may be substituted by at least one member selected from the group consisting of C.sub.1-5 alkyl, cyano, hydroxyl, C.sub.1-5 alkoxy, amino, C.sub.1-5 alkylamino, C.sub.2-6 dialkylamino, C.sub.2-5 acylamino, carboxyl, C.sub.2-5 alkoxycarbonyl and carbamoyl, and R.sup.1 and R.sup.2 independently represent hydrogen atom or C.sub.1-5 alkyl or R.sup.1 and R.sup.2 may form together C.sub.1-5 alkylene, and salts thereof.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: April 28, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Hiromi Okushima, Akihiro Narimatsu, Makio Kobayashi, Rikizo Furuya, Yoshimi Kitada
  • Polycarbonate resin composition and process for its production
    Patent number: 4661555
    Abstract: A particulate polycarbonate resin composition which is separated from a solution of an inorganic filler-containing polycarbonate in an organic solvent at a temperature lower than the melting point of the polycarbonate, and contains an inorganic filler, said composition having a particle size distribution n of from 3 to 8 as represented by the following Rosin-Rammler distribution equationR=100 exp (-b Dp.sup.n)where R is an on-sieve amount (% by weight), Dp is a particle diameter (mm), and b is a constant, the particle diameter of the 50% on-sieve weight integration being from 0.5 to 6 mm, and the bulk density being from 0.1 to 0.7 g/ml.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: April 28, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Shinichiro Koga, Katsuhisa Kohyama, Katsuyuki Sakata
  • Sheets for sublimation transfer recording
    Patent number: 4657557
    Abstract: A sheet for sublimation transfer recording which is characterized by being composed of a base coated with an ink for sublimation heat-sensitive transfer and further coated with a heat-resistant resin such as a water-soluble cellulose type derivative, e.g., methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose or hydroxybutylmethyl cellulose. The obtained recording has good definition and shows no abrasion staining in the non-printed part of the image receiving body, and peeling-off of the recording sheet from the image receiving body is easy.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: April 14, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Toshio Niwa, Yukichi Murata, Takashi Morishima
  • Process for degrading by hydrolysis textiles comprising polyester fiber or acetate fiber
    Patent number: 4654911
    Abstract: This process carries out degradation of textile comprising polyester fiber and/or acetate fiber in the apparatus having an automatic titration device and a microcomputer, and the degradation is carried out in the substantially closed state in the apparatus, and the course of the degradation is monitored based on the decrease in the concentration of alkaline solution in the apparatus. According to the invention, the rate of degradation can be easily and accurately controlled.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: April 7, 1987
    Assignees: Wako Technical Research Co., Ltd., Mitsubishi Chemical Industries Limited
    Inventors: Keisuke Konishi, Isao Tanaka
  • Low-temperature fluidity improver
    Patent number: 4652611
    Abstract: The low-temperature fluidity improver comprising(A) an adduct formed by adding a reaction product having the weight average polymerization degree of 1 to 100, which is prepared from an .alpha.-olefin having the average carbon atom number of 10 to 30 and maleic anhydride, to an aliphatic alcohol having the average carbon atom number of 6 to 28, in which the sum of the average carbon atom number in the longest alkyl group chain of the .alpha.-olefin and the average carbon atom number in the longest carbon chain of the aliphatic alcohol is 22 to 40, and/or a salt of said adduct, and(B) a low molecular weight polyethylene having the numerical average molecular weight of 500 to 20,000 and/or a reaction product thereof with maleic anhydride.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: March 24, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Katsuhiko Kuroda, Kiyoharu Yoshimi, Tsutomu Baba
  • Positive photosensitive composition of cocondensed .beta.-naphthol and m-cresol with aldehyde in admixture with sulfonyl triester of a 1,2-naphthoquinone-1-diazide
    Patent number: 4650741
    Abstract: Disclosed herein is a positive photosensitive composition comprising a 1,2-naphthoquinone diazide compound and a binder resin comprising a novolak resin containing as condensation components .beta.-naphthol, or .alpha.-naphthol and p-cresol.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: March 17, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Konoe Miura, Hideki Nagasaka, Noriaki Takahashi, Tameichi Ochiai, Ryuichiro Takasaki
  • Process for producing oxocarboxylic acids
    Patent number: 4649217
    Abstract: Oxocarboxylic acids, for example adipaldehydic acid can be advantageously produced by a process, in which cyclohexanones are oxidized with molecular oxygen in the presence of water and iron or iridium compound, preferably also in the presence of a sulfur or organic nitrogen compound.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: March 10, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Takao Maki, Kenji Murayama, Yoshio Asahi
  • Soap composition
    Patent number: 4647394
    Abstract: A soap composition comprising a blend of a solid soap base and a phospholipid is disclosed.
    Type: Grant
    Filed: October 31, 1984
    Date of Patent: March 3, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Kuniko Kimura, Kunihiko Ofuchi, Koichiro Oda
  • Process for preparing 2,3-dihydro-7-aminobenzofurans
    Patent number: 4647677
    Abstract: A process for preparing 2,3-dihydro-7-aminobenzofurans by reaction between 2,3-dihydro-7-halobenzofurans and ammonia in the presence of a copper catalyst, is described. The 2,3-dihydro-7-aminobenzofurans are useful as intermediates for insecticides.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: March 3, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Mitsuhiko Tamura, Haruo Katsumata, Takemi Nakanome