Patents by Inventor Minoru Tabana

Minoru Tabana 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).

  • Flame retardant polymer composition
    Patent number: 4173561
    Abstract: Resin compositions excellent in both flame retardation and weather durability, comprising (1) a styrene resin, (2) a halogen-containing flame retarder such as decabromodiphenyl ether and (3) an inorganic hydrate compound such as diatomaceous earth or a magnesium compound such as magnesium hydroxide and oxide.
    Type: Grant
    Filed: January 4, 1978
    Date of Patent: November 6, 1979
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Minoru Tabana, Noriyuki Sekine, Tatsuyuki Mitsuno, Akira Kinoshita
  • Rubber-modified polystyrene resin composition
    Patent number: 4075285
    Abstract: A rubber-modified polystyrene resin composition consisting essentially of a rubber-modified polystyrene and a transparent, resinous styrene-butadiene block copolymer containing 65 to 95% by weight of styrene and 5 to 35% by weight of butadiene. This resin composition is excellent in impact strength, elongation, flexural stress clouding, hinging endurance, and surface gloss.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: February 21, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Minoru Tabana, Shizuo Narisawa, Tatsuyuki Mitsuno, Hiroshi Maki
  • Thermoplastic resin composition
    Patent number: 4073831
    Abstract: A novel thermoplastic resin composition consisting essentially of polystyrene and a styrene-butadiene block copolymer. This resin composition is transparent, is excellent in mechanical properties, particularly in elongation, impact strength, and stiffness, is not liable to become cloudy on being bent, and is favorable in hinging endurance as well as in thermal resistance.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: February 14, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Minoru Tabana, Tatsuyuki Mitsuno, Hiroshi Maki, Shizuo Narisawa
  • Thermoplastic resin composition
    Patent number: 4017436
    Abstract: A resin composition consisting essentially of a styrene-butadiene block copolymer resin, a liquid polybutadiene resin or its modification product, and a tackifier. This resin composition is transparent, excellent in mechanical properties, particularly elongation, impact strength and elastic recovery, and is also improved in film-forming ability and tackiness.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: April 12, 1977
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Minoru Tabana, Tatsuyuki Mitsuno, Hiroshi Maki