Patents Assigned to Toa Nenryo Kogyo Kabushiki Kaisha
  • Catalyst component for polymerization of olefins
    Patent number: 4544648
    Abstract: A catalyst component for the polymerization of olefins and particularly ethylene which is prepared by contacting a contact product of a magnesium alkoxide, a halogenated hydrocarbon, a halogenated silane with a titanium compound. The catalyst component in combination with a organoaluminum cocatalyst is useful for the polymerization of ethylene having a high melt index.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: October 1, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Takeshi Nomura, Kouji Maruyama, Hiroshi Ueno, Naomi Inaba
  • Optically antisotropic carbonaceous pitch
    Patent number: 4534850
    Abstract: A composition for an optically anisotropic carbonaceous pitch suitable for the production of a carbon material having a high tensile strength and a high modulus of elasticity. The composition comprises about 2 to 20 percent by weight of a first, n-heptane-soluble component, about 15 to 45 percent by weight of an n-heptane-insoluble and benzene-soluble, second component and the balance of the composition including benzene-insoluble components. The composition has a volume ratio of an optically anisotropic phase of at least about 90% and a softening point of up to about 320.degree. C.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: August 13, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Takayuki Izumi, Tsutomu Naito, Tomoo Nakamura
  • Process for producing mesophase pitch
    Patent number: 4533461
    Abstract: A substantially uniform mesophase pitch is prepared by treating a mesophase forming pitch material at elevated temperatures above about 380.degree. C. to produce a mixture of mesophase and non-mesophase pitch containing about 20% to about 80% mesophase. The mixture is then maintained at a temperature below about 400.degree. C. for a time sufficient to allow the mesophase to coalesce and settle as a lower separable layer. A mesophase pitch so produced may contain from 90 to 100% mesophase with a softening point of less than 320.degree. C.
    Type: Grant
    Filed: July 8, 1981
    Date of Patent: August 6, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Takayuki Izumi, Tsutomu Naito, Seiko Igarashi
  • Production of polyolefin copolymer
    Patent number: 4528329
    Abstract: A polyolefin product is produced by reacting a polyolefin grafted with a carboxylic acid or an anhydride thereof with a polar polymer containing epoxy groups. The unreacted epoxy groups in the resulting copolymer improves adhesion and compatibility with metals and other resins.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: July 9, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Inoue, Tadashi Sezume, Masaaki Isoi, Kunio Iwanami, Kazuo Sei
  • Process for the low polymerization of isobutene
    Patent number: 4513166
    Abstract: 1-Butene and isobutene are effectively separated without isomerization of 1-butene by contacting an isobutene-containing hydrocarbon mixture with a solid acid catalyst having a solid acid quantity of 0.05 to 0.25 mmol/g of solid acid catalyst, represented by the adsorption quantity of pyridine, thus low-polymerizing selectively isobutene and then separating the low polymers of isobutene from 1-butene.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: April 23, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Satoshi Sakurada, Takao Hashimoto, Nobuaki Tagaya, Tsugio Maeshima, Kayako Ueda, Masahiro Kokubo
  • Process for continuous production of optically anisotropic pitch
    Patent number: 4511456
    Abstract: A continuous process for producing an optically anisotropic pitch. A reaction tank is used to treat a starting material. An upper section is utilized for thermal decomposition polycondensation zone. A lower portion of the tank is used as a settling zone.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: April 16, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventor: Takayuki Izumi
  • Process for hydration of olefins
    Patent number: 4507512
    Abstract: An improved process for producing an alcohol by hydrating an olefin wherein the improvement comprises hydrating an olefin in the presence of a hydrogen-type catalyst having a silica/alumina molar ratio of 20 to 500 and a solvent using either:A. hydrogen-type mordenite or hydrogen-type zeolite Y, and a sulfone; orB. hydrogen-type crystalline aluminosilicate in which the entrance of the main void is formed by a 10-membered or 12-membered oxygen ring, and a C.sub.2 to C.sub.5 oxy acid or the lactones, lactides, methyl or ethyl esters thereof.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: March 26, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yoshiharu Okumura, Setsuo Kamiyama, Hiroshi Furukawa, Katsumi Kaneko
  • Process for hydration of olefins
    Patent number: 4499313
    Abstract: An improved process for producing an alcohol by hydrating an olefin, wherein the improvement comprises hydrating an olefin in the presence of hydrogen-type mordenite or hydrogen-type zeolite Y as a catalyst each having a silica/alumina molar ratio of 20 to 500.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: February 12, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yoshiharu Okumura, Setsuo Kamiyama, Toshihiro Hosokawa, Katsumi Kaneko
  • Hydrogenation process
    Patent number: 4497909
    Abstract: Novel catalyst compositions are provided comprising a silica/alumina carrier having a silica content less than about 40% by weight and at least one noble metal component of Group VIII of the Periodic Table and wherein the catalyst contains (1) pores having a diameter of smaller than 600 .ANG. occupying at least 90% of the total pore volume and (2) pores having a diameter of 150 to 600 .ANG. occupying at least about 40% of the total volume of the pores having a diameter of smaller than 600 .ANG.. This catalyst is particularly useful in the production of jet fuels and white oils.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: February 5, 1985
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Takuji Itoh, Ikuo Akitsuki
  • Catalyst component for polymerization of olefins
    Patent number: 4485186
    Abstract: A catalyst component for polymerization of olefins which is prepared by bringing a magnesium alkoxide, a halogenated hydrocarbon, and a titanium compound into contact with one another. The catalyst component together with a organoaluminum cocatalyst is used for the polymerization of olefins and especially for the homopolymerization of ethylene and copolymerization of ethylene with an .alpha.-olefin having from 3 to 10 carbon atoms.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: November 27, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Tadanao Kohara, Takeshi Nomura, Kouji Maruyama, Naomi Inaba, Makota Yoda
  • Process for producing ethylene polymers
    Patent number: 4485187
    Abstract: A catalyst for polymerizing ethylene and .alpha.-olefins and process for producing ethylene polymers which comprises homopolymerizing ethylene or copolymerizing ethylene and other olefins in the presence of a catalyst comprising a catalyst component and an organoaluminum compound, said catalyst component being obtained by mechanically copulverizing (A) a magnesium halide and (B) magnesium hydrocarbyloxide at a molar ratio of B/A=0.5 to 1.5 and subsequently bringing the resulting pulverized product into contact with a tetravalent titanium halide in the presence of a hydrocarbon and/or halogenated hydrocarbon.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: November 27, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Takeshi Nomura, Kouji Maruyama, Hiroshi Ueno, Naomi Inaba, Makota Yoda
  • Method of manufacturing ketones
    Patent number: 4481373
    Abstract: The invention relates to a method for the manufacture of ketones which comprises oxidizing an n-olefin in the presence of a catalyst containing palladium, copper, a halogen, and at least one of specific tertiary amines.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: November 6, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yoshiharu Okumura, Tadamori Sakakibara, Katsumi Kaneko
  • Process for improving adhesion of rubbery polymers by reacting with silanes in two stages
    Patent number: 4463129
    Abstract: Rubbery polymer compositions, e.g. based on chlorobutyl rubber, having improved adhesion to mineral substrates such as glass or metal, are produced by a stepwise reaction sequence. In a first stage the rubbery polymer is reacted with a reactive silane such as an amino trialkoxy silane, in a second stage the product is mixed with an epoxy resin, and in a third stage a further amount of reactive silane is reacted with the epoxy containing compound.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: July 31, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yasukavu Shinada, Daniel E. Nerinckx
  • Adhesive resin composition and laminate thereof
    Patent number: 4460646
    Abstract: The adhesive resin composition and laminate disclosed herein comprises a mixture of linear low density polyethylene, and a synthetic rubber reacted with an unsaturated carboxylic acid or derivative thereof.
    Type: Grant
    Filed: March 18, 1982
    Date of Patent: July 17, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Inoue, Masaaki Isoi, Kazuo Sei
  • Process for the low polymerization of isobutene
    Patent number: 4454367
    Abstract: 1-Butane and isobutene are effectively separated without isomerization of 1-butene by contacting an isobutene-containing hydrocarbon mixture with a solid acid catalyst having a solid acid quantity of 0.05 to 0.25 mmol/g of solid acid catalyst, represented by the adsorption quantity of pyridine, thus low-polymerizing selectively isobutene and then separating the low polymers of isobutene from 1-butene.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: June 12, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Satoshi Sakurada, Takao Hashimoto, Nobuaki Tagaya, Tsugio Maeshima, Kayako Ueda, Masahiro Kokubo
  • Process for producing a homogeneous low softening point, optically anisotropic pitch
    Patent number: 4454020
    Abstract: A process for producing optically anisotropic pitch containing 80% or more of an anisotropic phase. A starting material is pyrolytically polycondensed. Afterward, the material is maintained at a temperature of between 350.degree. and 400.degree. C. to precipitate a portion of the material rich in the anisotropic phase having a high specific gravity. This portion is separated and further heat treated.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: June 12, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Takayuki Izumi, Tsutomu Naito, Seikoh Igarashi
  • Process for producing optically anisotropic carbonaceous pitch
    Patent number: 4454019
    Abstract: A homogeneous, optically anisotropic pitch used for the production of carbon materials is prepared from a starting oil comprising a substantially chloroform-insoluble matter-free oily or tarry substance. The starting oil is subjected to thermal cracking and polycondensation to form approximately 20-80% of optically anisotropic phase pitch.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: June 12, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Takayuki Izumi, Tsutomu Naito, Tomoo Nakamura, Hisao Tanaka
  • Process for producing melt-blown thermoplastic articles
    Patent number: 4442062
    Abstract: A process and apparatus are provided for the production of a non-woven fabric by melt-blowing wherein one or more yarns, e.g. monofilaments, are added or charged into the fabric stream between the extruder and collector by means of a supporting and drawing pressure gas stream. In one embodiment means are provided to regulate flow of the gas stream. In another embodiment means are provided to reciprocate or to rotate through a small arc the one or more charging means.
    Type: Grant
    Filed: October 2, 1980
    Date of Patent: April 10, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Shigeo Fujii, Tokuzo Ikeda, Takashi Mikami, Shuji Okano
  • Modified polyethylene and laminate thereof
    Patent number: 4440911
    Abstract: A linear low density polyethylene (a copolymer of ethylene and alpha-olefin) reacted with a carboxylic acid is disclosed. Laminates and compositions employing the modified polyethylene and/or synthetic rubber are also disclosed.
    Type: Grant
    Filed: March 18, 1982
    Date of Patent: April 3, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Inoue, Masaaki Isoi, Kazuo Sei
  • Artificial leathers
    Patent number: 4434205
    Abstract: An artificial leather is made by impregnating a special nonwoven web substrate with an elastic polymer material. In another embodiment the substrate comprises a nonwoven fabric laminated to a woven or nonwoven fabric.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: February 28, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Shigeo Fujii, Tokuzo Ikeda, Takashi Mikami, Shuji Okano