Patents by Inventor Makoto Yoda

Makoto Yoda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4684578
    Abstract: Modified polymer compositions comprising elastomers blended with not more than 50 parts by weight of a crystalline polyolefin are prepared by reaction of the polymers with an unsaturated carboxylic acid or its acid anhydride. The modified composition optionally containing a filler, is particularly suitable for laminating to metals and other polymers; laminates show superior hot water resistance, salt water resistance and thermal shock resistance.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: August 4, 1987
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Inoue, Makoto Miyazaki, Masaaki Isoi, Makoto Yoda
  • Patent number: 4619972
    Abstract: Modified polymer compositions comprising elastomers blended with not more than 50 parts by weight of a crystalline polyolefin are prepared by reaction of the polymers with an unsaturated carboxylic acid or its acid anhydride. The modified composition optionally containing a filler, is particularly suitable for laminating to metals and other polymers; laminates show superior hot water resistance, salt water resistance and thermal shock resistance.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: October 28, 1986
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Inoue, Makoto Miyazaki, Masaaki Isoi, Makoto Yoda
  • Patent number: 4426314
    Abstract: According to a first aspect of this invention, there is provided A magnesium-containing solid, obtained by contacting the reaction product of (1):(A) metallic magnesium;(B) a halogenated hydrocarbon of the general formula RX in which R stands for an alkyl, aryl or cycloalkyl group having 1 to 20 carbon atoms, and X stands for a halogen atom; and(C) an alkoxy compound of the general formula X'.sub.m C(OR').sub.4-m in which X' stands for a hydrogen or halogen atom, or an alkyl, aryl or cycloalkyl group having 1 to 10 carbon atoms, R' stands for an alkyl, aryl or cycloalkyl group having 1 to 20 carbon atoms, and m is 0, 1 or 2, with (2) an electron donative compound and hydrogen halide. The supported transition metal in combination with an organoaluminum co-catalyst is employed as an olefin polymerization catalyst.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: January 17, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Makoto Miyazaki, Takeshi Nomura, Chihiro Imai, Makoto Yoda
  • Patent number: 4402863
    Abstract: According to this invention, there is provided a magnesium-containing solid, obtained by contacting the reaction product of (1):a magnesium-containing solid, obtained by contacting the reaction product of:(a) metallic magnesium;(b) a halogenated hydrocarbon of the general formula RX in which R stands for an alkyl, aryl or cycloalkyl group having 1 to 20 carbon atoms, and X stands for a halogen atom; and(c) an alkoxy compound of the general formula X'.sub.m C(OR').sub.4-m in which X' stands for a hydrogenor halogen atoms, or an alkyl, aryl or a cycloalkyl group having 1 to 10 carbon atoms, R' stands for an alkyl, aryl or cycloalkyl group having 1 to 20 carbon atoms and m is 0, 1 or 2, with (2) an organic aluminum compound.The magnesium-containing solid is employed as a carrier for a transition metal halide. The supported transition metal halide in combination with an aluminum alkyl cocatalyst such as aluminum triethyl is usefully employed for the polymerization of olefins.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: September 6, 1983
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Makoto Miyazaki, Takeshi Nomura, Chihiro Imai, Makoto Yoda
  • Patent number: 4390671
    Abstract: A supported titanium catalyst component is produced by cogrinding an organo aluminum catalyst component with a supported titanium (IV) halide on a magnesium halide. The resulting supported titanium halide catalyst component, when employed with an organo aluminum catalyst component to form a catalyst system is highly useful for the stereoregular polymerization of .alpha.-olefins as well as the copolymerization of .alpha.-olefins.
    Type: Grant
    Filed: September 26, 1980
    Date of Patent: June 28, 1983
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Masafumi Imai, Hiroshi Ueno, Naomi Inaba, Makoto Yoda, Shozo Wada
  • Patent number: 4370257
    Abstract: A process for producing a magnesium containing support for titanium comprising contacting magnesium metal, a halogenated hydrocarbon and a compound represented by the formula X'.sub.m C(OR').sub.4-m wherein X' is a hydrogen atom, a halogen atom or a C.sub.1 -C.sub.10 alkyl, aryl, cycloalkyl or halogenated alkyl, aryl, cycloalkyl group, R' is a C.sub.1 -C.sub.20 alkyl, aryl or cycloalkyl group and m is 0, 1 or 2 to form a magnesium-containing solid represented by the formula R'OMgX and thereafter contacting the magnesium-containing solid with a Lewis base or a compound which can form an ester such as benzoyl chloride and a titanium compound such as titanium tetrachloride. The obtained magnesium supported titanium composition is useful as a catalyst component in combination with a co-catalyst organoaluminum compound for the polymerization of olefins.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: January 25, 1983
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Masafumi Imai, Hiroshi Ueno, Naomi Inaba, Makoto Yoda, Shozo Wada
  • Patent number: 4348507
    Abstract: A supported titanium catalyst is produced by cogrinding, in combination, a magnesium halide, tetravalent titanium halide, organic acid ester, and an organic halogen compound. The resulting supported titanium catalyst, when employed as a titanium component with an organo aluminum catalyst component for the catalyst system in a process for stereoregular polymerization of .alpha.-olefins, produces high polymerization activity and unexpectedly high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: September 7, 1982
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Masafumi Imai, Naomi Inaba, Makoto Yoda, Shozo Wada
  • Patent number: 4338228
    Abstract: A polyolefin composition comprising a modified polyolefin obtained by adding an unsaturated carboxylic acid or an anhydride thereof to a polyolefin or mixtures of said modified polyolefin and an unmodified polyolefin, an inorganic filler, one or more nucleating agents or a combination thereof with one or more heat deterioration inhibitors, said polyolefin composition evidencing reduced deterioration by heat or reduction of its mechanical strength during a molding operation.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: July 6, 1982
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Inoue, Masaaki Isoi, Makoto Yoda, Masato Komatsu
  • Patent number: 4314046
    Abstract: A supported titanium catalyst, adaptable for use in the stereoregular polymerization of .alpha.-olefins, is produced by treating a supported titanium-containing solid, obtained by cogrinding a magnesium halide, tetravalent titanium halide and organic acid ester, with a hydrocarbon, organo halogen compound or mixture thereof with heating. The resulting supported titanium catalyst, when employed as a titanium component with an organo aluminum catalyst component for the catalyst system in a process for stereoregular polymerization of .alpha.-olefins, produces high polymerization activity and unexpectedly high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: February 2, 1982
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Masafumi Imai, Naomi Inaba, Makoto Yoda, Shozo Wada
  • Patent number: 4253984
    Abstract: A supported titanium catalyst component is produced by cogrinding in the presence of an ethylenically unsaturated hydrocarbon an organo aluminum catalyst component with a supported titanium (IV) halide on a magnesium halide until the intensity of the 14.8.degree. and 30.2.degree. x-ray diffraction peak of magnesium halide are reduced in intensity. The resulting supported titanium halide catalyst component, when employed with an organo aluminum catalyst component to form a catalyst system is highly useful for the stereoregular polymerization of .alpha.- olefins as well as the copolymerization of .alpha.-olefins.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: March 3, 1981
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Masafumi Imai, Hiroshi Ueno, Naomi Inaba, Makoto Yoda, Shozo Wada
  • Patent number: 4246136
    Abstract: A supported titanium catalyst is produced by cogrinding, in combination, a magnesium halide, tetravalent titanium halide, organic acid ester, and a halogen compound selected from organic halogen compounds and halogen-containing compounds of Group IVa elements of the Periodic Table except carbon, and then treating the resulting titanium-containing solid with a hydrocarbon and/or a halogen compound as described above. The resulting supported titanium catalyst, when employed as a titanium component with an organo aluminum catalyst component for the catalyst system in a process for stereoregular polymerization of .alpha.-olefins results in unexpectedly high polymerization activity and high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: January 20, 1981
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Masafumi Imai, Naomi Inaba, Makoto Yoda, Shozo Wada
  • Patent number: 4242230
    Abstract: A supported titanium catalyst, adaptable for use in the stereoregular polymerization of .alpha.-olefins, is produced by treating a supported titanium-containing solid, obtained by cogrinding a magnesium halide, tetravalent titanium halide and organic acid ester, with a hydrocarbon, organo halogen compound or mixture thereof with heating. The resulting supported titanium catalyst, when employed as a titanium component with an organo aluminum catalyst component for the catalyst system in a process for stereoregular polymerization of .alpha.-olefins, produces high polymerization activity and unexpectedly high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Masafumi Imai, Naomi Inaba, Makoto Yoda, Shozo Wada
  • Patent number: 4242231
    Abstract: A supported titanium catalyst is produced by cogrinding, in combination, a magnesium halide, tetravalent titanium halide, organic acid ester, and an organic halogen compound. The resulting supported titanium catalyst, when employed as a titanium component with an organo aluminum catalyst component for the catalyst system in a process for stereoregular polymerization of .alpha.-olefins, produces high polymerization activity and unexpectedly high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Masafumi Imai, Naomi Inabe, Makoto Yoda, Shozo Wada
  • Patent number: 4146590
    Abstract: Modified polyolefin having high adhesion strength and less irritating odor during processing is obtained by reacting unsaturated carboxylic acid or its anhydride grafted polyolefin with a bifunctional compound having alcohol groups or amine groups. Preferable unsaturated carboxylic acids are maleic acid, and endobicyclo-[2,2,1]-5-heptene-2,3-dicarboxylic acid. Preferable bifunctional compounds are ethylene glycol, 1,4-butanediol, 1,6-hexanediol, glycerine, ethylene diamine, 1,3-diaminopropane m-phenylene diamine, etc.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: March 27, 1979
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Noboru Yamamoto, Makoto Yoda, Shozo Wada
  • Patent number: 4038477
    Abstract: Spherical polyolefin (or modified polyolefin) powders having high bulk density, narrow particle size distribution and good powder flowability are prepared by cooling a polyolefin solution comprising a solvent and nonsolvent for the polyolefin and containing a small amount of an inorganic compound and, if desired, water. The polyolefin powders are suitable for powder coating. Suitable solvents are hydrocarbons, such as hexane, heptane, etc., and a mixture of hydrocarbon and nonsolvent for polyolefin such as methyl alcohol, ethyl alcohol, isopropyl alcohol, etc. The ratio of a hydrocarbon/nonsolvent is 95/5 - 30/70, preferably 90/10 - 50/50. Suitable inorganic compounds are phosphoric acid, sulfuric acid, sulfurous acid, hydrochloric acid, sodium hydroxide, potassium hydroxide, ammonium hydroxide, inorganic salts thereof, etc. and the most preferable inorganic compound is phosphoric acid.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: July 26, 1977
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Inoue, Makoto Yoda, Shozo Wada
  • Patent number: 4015049
    Abstract: The adhesive strength of a metallic layer prepared by vacuum metallizing on an unsaturated carboxylic acid modified polyolefin article is substantially increased by heating below the melting point of the polyolefin after the metallization. Preferable heating temperature is 92.degree.-157.degree. C. for polypropylene and heating time is 10 sec. - 1 hour. An aluminum layer obtained by this invention has remaining ratio of 100% after cross cut test.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: March 29, 1977
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Makoto Yoda, Kazushige Ishibashi, Shozo Wada
  • Patent number: 3995769
    Abstract: A dispensing device for gasoline or the like liquid fuel which is mounted on a base structure or island as a part of the device, which occupies a relatively narrow space and may be of a hollow body so as to accomodate at least one of a flow meter, a fuel pump, and a motor for driving the pump. The device has at least three indication surfaces each directed in different direction around the device, so that an amount of the fuel dispensed and indicated on said surfaces can be read from any position around the device.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: December 7, 1976
    Assignees: Nippon Oil Company Ltd., Tokyo Tatsuno Co., Ltd.
    Inventors: Etsuo Kuwabara, Masamitu Tadano, Mitsuo Horiuchi, Makoto Yoda, Saburo Ishida, Astushi Toba, Susumu Ohhashi, Yoshiro Iwano, Kazuo Sasaki, Mitsuo Iwano, Hiyoshi Tatsuno