Patents Assigned to Mitsui Toatsu Chemicals, Inc.
  • Process for disproportionating silanes
    Patent number: 4667048
    Abstract: A process for disproportionating silanes, which comprises contacting a silane having at least one Si--H bond represented by the general formulaR.sub.l H.sub.m SiX.sub.4-(l+m)wherein R represents an alkyl or aryl group, X represents a halogen atom or an alkoxy group, l is 0, 1 or 2, and m is 1, 2 or 3 and l+m is 1, 2 or 3, and when l is 2, R's may be identical or different, and when l+m is 1 or 2, X's may be identical or different, with a reaction product of a strong acid-type cation exchange resin with an amine and disproportionating the silane.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: May 19, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kaoru Inoue, Hiroharu Miyagawa, Masayoshi Itoh, Tomohiro Abe, Kyogo Koizumi, Noriyuki Yanagawa
  • Glass-fiber reinforced polypropylene resin composition
    Patent number: 4663369
    Abstract: A glass-fiber reinforced polypropylene composition having superior adhesion of glass fibers therein, stiffness, high-impact properties and molding properties is provided, which composition comprises a graft polypropylene resin obtained by graft-polymerizing a radically polymerizable unsaturated compound onto a crystalline polypropylene resin with an organic peroxide catalyst in a hydrocarbon solvent or a blend of the graft polypropylene with a crystalline polypropylene resin, glass fibers treated with an organic silane or titanium compound, Ca stearate and an alkaline earth metal compound, the respective quantities of the above components being specified.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: May 5, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yoichi Kawai, Masaru Abe, Masami Maki, Koutarou Suzuki, Minoru Hoshino
  • DNA coding for a signal amino acid sequence and DNA containing the same
    Patent number: 4663294
    Abstract: This invention relates to DNA consisting of a DNA base sequence coding for the signal amino acid sequence:______________________________________ Met Phe Ala Lys Arg Phe Lys Thr Ser Leu Leu Pro Leu Phe Ala Gly Phe Leu Leu Leu Phe Tyr Leu Val Leu Ala Gly Pro Ala Ala Ala Ser Ala Glu Thr Ala Asn Lys Ser Asn Glu, ______________________________________and to DNA containing such a DNA base sequence. The DNA base sequence coding for said amino acid sequence includes, for example, ______________________________________ ATG TTT GCA AAA CGA TTC AAA ACC TCT TTA CTG CCG TTA TTC GCT GGA TTT TTA TTG CTG TTT TAT TTG GTT CTG GCA GGA CCG GCG GCT GCG AGT GCT GAA ACG GCG AAC AAA TCG AAT GAG. ______________________________________The desired products in cells can be secreted out of cells by the use of a vector containing DNA consisting of the DNA base sequence coding for said signal amino acid sequence.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: May 5, 1987
    Assignees: Kunio Yamane, The Calpis Food Industry Co., Ltd., Mitsui Toatsu Chemicals, Inc.
    Inventors: Kunio Yamane, Kazutaka Ohmura, Akira Nakayama, Yasutoshi Takeichi
  • Certain aryl-alkane-2-pyridyloxy-phenyl derivatives having insecticidal and acaricidal activity
    Patent number: 4661501
    Abstract: The present invention relates to novel aromatic alkane derivatives represented by the following general formula (I): ##STR1## wherein Ar stands for a substituted or unsubstituted phenyl or naphthyl group, R.sup.1 stands for a methyl, ethyl or isopropyl group and R.sup.2 stands for a hydrogen atom or a methyl group, or R.sup.1 and R.sup.2 together with the carbon to which they are attached jointly represent a substituted or unsubstituted cycloalkyl group and R.sup.3, stands for a fundamental group of an alcohol which is usually used in a form of R.sup.3 OH as to natural or synthetic pyrethroids, and also to the uses of these compounds.These compounds of the present invention have excellent insecticidal and acaricidal activities while the toxicities of these compounds are very low.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: April 28, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kiyoshi Nakatani, Satoshi Numata, Kenji Kodaka, Kengo Oda, Shiro Shiraishi, Takatoshi Udagawa
  • Method for the treatment of digestive ulcers
    Patent number: 4657896
    Abstract: DNAs, the salts thereof, the mixtures of DNA and RNA in which the DNA is mostly contained, and the mixtures of the salt of DNA and the salt of RNA in which the salt of DNA is mostly contained are used as active ingredients for pharmaceutical preparations for digestive ulcer, for example, DNA and RNA being obtained from BCG.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: April 14, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Osamu Yano, Takafumi Kitano
  • Process for producing germanes
    Patent number: 4656013
    Abstract: There is disclosed a process for producing germanes by reducing germanium halide with a mixture of alkylaluminum hydride and trialkylaluminum, in which a treatment for reducing the content of trialkylaluminum in the mixture to 10 mol. % or less relative to the alkylaluminum hydride is carried out prior to the reduction reaction. As to the treatment for reducing the content of trialkylaluminum in the mixture, there are provided, for example, distillation, recrystallization, complex formation followed by separation, pyrolysis and decomposition by hydrogenation and addition of alkylaluminum halide to said mixture.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: April 7, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Athuhiko Hiai, Kazuo Wakimura, Masao Tanaka
  • Isoquinoline derivatives
    Patent number: 4639521
    Abstract: Isoquinoline derivatives represented by the general formula (I): ##STR1## wherein R.sub.1 denotes a hydrogen or halogen atom, or a nitro or acetyl group, and R.sub.2 denotes a hydrogen atom, or a methyl, methoxy, phenyl, 4-pyridyl or 2-pyridyl group, and therapeutically acceptable salts thereof have high cardiotonic activity and low toxicity.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: January 27, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kunio Sannohe, Kengo Otsuka, Toshohiko Ito, Masahiko Maruyama, Takafumi Kitano, Makoto Hirayama
  • Magnetic recording medium
    Patent number: 4637964
    Abstract: Disclosed herein is a magnetic recording medium, (1) in which a magnetic layer is formed by coating a magnetic paint containing a magnetic powder and a binder as its main components on a non-magnetic base material; (2) which is featured by containing as said binder a polymer having an alkenyl phenol as one of the components of the polymer; and (3) which has markedly improved effects in the dispersibility of the magnetic powder in said medium and in the abrasion resistance and flexibility of the magnetic layer.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: January 20, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yoshiro Shimuzu, Yoshio Tada
  • Process for the continuous discharge of a slurry
    Patent number: 4632976
    Abstract: A process is provided herein wherein a solid polymer slurry diluted with a specific diluent is continuously discharged under controlled conditions from a high pressure zone to a low pressure zone substantially maintained at atmospheric pressure and the slurry is then separated into said diluent and dried polymer, the improvement wherein the discharged amount of the solid polymer slurry is strictly controlled by varying the heat in the second zone and simultaneously adding a diluent which is gaseous under normal temperature and pressure so that by the control of these two perimeters a continuous slurry discharge can be maintained at predetermined levels.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: December 30, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tadashi Asanuma, Tatuo Ohoka, Nobutaka Uchikawa
  • Resin for high-refractivity lenses
    Patent number: 4632969
    Abstract: Disclosed herein are a resin for high-refractivity lenses, formed by copolymerizing at least one unifunctional monomer selected from the group of compounds represented by the following general formula (I); ##STR1## wherein X means a oxygen or sulfur atom, Y denotes a chlorine or bromine atom, R is a hydrogen atom or a methyl group, m is 0 or 1 and n stands for an integer of 1-5 with at least one bifunctional monomer selected from the group of compounds represented by the following general formula (II); ##STR2## wherein Z is a hydrogen, chlorine or bromine atom, R means a hydrogen atom or a methyl group and p stands for an integer 1-4 as well as high-refractivity lenses made of such a resin.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: December 30, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Katsuyoshi Sasagawa, Masao Imai, Kimio Kanno
  • Process for producing dianthraquinone-N,N'-dihydrazine and its chlorination product
    Patent number: 4628091
    Abstract: A process for producing dianthraquinone-N,N'-dihydrazine or its chlorination product, which comprises condensing 1-aminoanthraquinone at an elevated temperature in the presence of 1,3-dimethyl-2-imidazolidinone using an oxidizing agent and an alkaline condensing agent, and subjecting the resulting condensation product to a treatment known per se.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: December 9, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kimitoshi Kato, Hiroshi Aiga, Tamio Mikoda, Tunehiro Sakai
  • Process for producing 4-alkoxyanilines
    Patent number: 4625062
    Abstract: 4-Alkoxyanilines are obtained industrially advantageously by catalytically hydrogenating a nitrobenzene in the presence of a noble metal catalyst in a mixed solvent containing a lower aliphatic alcohol, sulfuric acid, and water or a lower aliphatic carboxylic acid or both to induce hydrogenation and a Bamberger-type rearrangement reaction. The mixed solvent contains at least 10 moles, preferably 30 to 60 moles, of the lower aliphatic alcohol per mole of the nitrobenzene, 1 to 10 moles, preferably 2 to 7 moles, of sulfuric acid per mole of the nitrobenzene, and 2 to 30% by weight, preferably 3 to 10% by weight, of water, the lower aliphatic carboxylic acid or both.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: November 25, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Teruyuki Nagata, Akihiro Tamaki, Hiroki Ohnishi, Hideki Mizuta
  • Coating composition
    Patent number: 4622360
    Abstract: Removable water-borne urethane resin coating composition comprising polyurethane resin containing carboxyl groups and/or carboxylate groups and polyvalent metal complex as a cross-linking agent and method for removing the coating formed by using the removable water-borne urethane resin coating composition which comprises treating said coating with a ligand containing alkaline solution and removing the coating.The coating formed by using the composition is superior in water resistance, recoatability, detergent resistance, black heel mark resistance, abrasion resistance and service life.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: November 11, 1986
    Assignees: Yuho Chemicals Inc., Mitsui Toatsu Chemical Inc.
    Inventors: Tadashi Gomi, Kenji Sakata, Ichiro Aoyama, Nobuo Sono
  • Diphenyl ether derivatives and herbicides containing same
    Patent number: 4619689
    Abstract: Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal activity and residual efficacy.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: October 28, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takeo Yoshimoto, Akira Hosono, Joh Miki, Yasunobu Funakoshi, Takashi Fujita, Yoshikata Hojo
  • Process for preparation of 3,3'- or 3,4'-diaminobenzophenones
    Patent number: 4618714
    Abstract: Preparation of 3,3'- or 3,4'-diaminobenzophenone by nitrating a chloronitrobenzophenone mixture obtained by the Friedel-Crafts reaction between 3- or 4-nitrobenzoyl chloride and chlorobenzene, and catalytically reducing and dechlorinating the resulting chlorodinitrobenzophenone mixture in the presence of a reduction catalyst and a dehydrochlorinating agent.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: October 21, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Keizaburo Yamaguchi, Kenichi Sugimoto, Yoshimitsu Tanabe, Saburo Kawashima, Akihiro Yamaguchi
  • Methyl methacrylate syrup composition
    Patent number: 4617367
    Abstract: A methyl methacrylate syrup composition comprises an intimate mixture of 1-99 parts by weight of a first polymer-in-monomer syrup (A) and 99-1 parts by weight of a second polymer-in-monomer syrup which can be either (B.sub.1) or (B.sub.2), wherein the syrups (A), (B.sub.1) and (B.sub.2) are as follows:(A) a polymer-in-monomer syrup obtained by copolymerizing a mixture of methyl methacrylate monomer, one or more monomers having reactivity with glycidyl groups and containing at least one ethylenically-unsaturated bond, and one or more of (meth)acrylates, styrene and styrene derivatives;(B.sub.1) a polymer-in-monomer syrup obtained by copolymerizing a mixture of one or more monomers containing at least one glycidyl group and at least one ethylenically-unsaturated bond, and one or more monomers selected from the group consisting of methyl methacrylate, (meth)acrylates, styrene and styrene derivatives;(B.sub.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: October 14, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Katsushi Watanabe, Takafumi Kageyama, Taisaku Kano, Koichi Hirai, Yoshinobu Ichihara
  • Process for producing silicon hydrides
    Patent number: 4610859
    Abstract: A process for producing silicon hydrides represented by the general formula Si.sub.n H.sub.2n+2 wherein n is a positive integer of 1 to 6, which comprises reacting a silicon-containing alloy with an aqueous solution of an acid in the presence of at least one inert organic solvent having a boiling range of from -60.degree. C. to 250.degree. C.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: September 9, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Hiroharu Miyagawa, Masayoshi Itoh, Tomohiro Abe, Kenji Iwata, Kyogo Koizumi
  • Iodine-containing conductive resin composition
    Patent number: 4610811
    Abstract: An iodine-containing conductive resin composition, said composition obtained by dispersing a carbon in a complex adduct of iodine and a polymer capable of forming a complex adduct with iodine and/or a mixture obtained by dispersing iodine in said polymer.
    Type: Grant
    Filed: March 5, 1985
    Date of Patent: September 9, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takakazu Yamamoto, Sadaaki Yamamoto, Sadao Kobayashi, Hiroshi Sukawa
  • Process for production of .beta.-phenylserine
    Patent number: 4605759
    Abstract: In the production of a .beta.-phenylserine by reacting glycine with a benzaldehyde in the presence of an alkali and treating the product with an acid, a novel process which comprises carrying out the reaction in a mixed solvent composed of water and a hydrophobic organic solvent. The presence of a phase transfer catalyst or a surface-active agent in this reaction system promotes the reaction and the .beta.-phenylserine can be obtained in a high yield.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: August 12, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Ryuichi Mita, Toshio Katoh, Chojiro Higuchi, Akihiro Yamaguchi
  • Polyolefin composition
    Patent number: 4600748
    Abstract: A polyolefin composition comprising 100 parts by weight of polyolefin, not less than 0.5 part by weight of a polyamide selected from the group consisting of nylon 6 and nylon 66, and from 3 to 30 percent by weight of novolak based on the weight of the polyamide; and a method of making polyolefin molded articles having surface improved in secondary processable property, which is characterized by treating the surface of molded articles of the polyolefin composition with a solution comprising: (a) not less than 2 percent by weight of a monomer having at least one carbon-carbon double bond and a glycidyl group, (b) 1 to 5 percent by weight of chlorinated polyolefin, and (c) not more than 97 percent by weight of a mixed solvent of 30 to 70 percent by weight of terpenic solvent and 70 to 30 percent by weight of aromatic or chlorinated hydrocarbon solvent.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: July 15, 1986
    Assignees: Daiwa Company Limited, Mitsui Toatsu Chemicals Inc.
    Inventors: Kaneyuki Takagi, Yoichi Kawai, Yoshiyasu Kamiya