Patents Assigned to Kabushiki Gaisha Tokai
  • Patent number: 5206062
    Abstract: A vessel for aerosol is manufactured by a high-nitryl resin which is formed by graft polymerizing a mixture of monomers of a 60 to 90 weight part comprising an unsaturated nitryl compound of at least 60 weight % and an aromatic vinyl compound of at least 5 weight % to diene synthetic rubber of a 1 to 40 weight part containing a conjugated diene monomer of 50 weight % or more, wherein assuming that a content of the unsaturated nitryl compound in the resin grafted to the rubber is set to X weight % in the high-nitryl resin and a content of the unsaturated nitryl compound in the matrix resin is set to Y weight %, the vessel is manufactured by the resin which satisfies the relation of60<X<Y<90between X and Y.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: April 27, 1993
    Assignees: Mitsui Toatsu Chemicals, Inc., Kabushiki Gaisha Tokai
    Inventors: Hideo Amemiya, Minoru Kuroda, Tsutomu Shike, Mikio Minagawa
  • Patent number: 5083685
    Abstract: A vessel according to the invention has a double-layer structure in which a vessel wall is constructed by an inner layer made of a special high-nitryl resin having excellent chemical resistance, gas barrier property, and the like and an outer layer made of a synthetic resin having excellent heat resistance, shock resistance, and the like. The vessel is suitable for use as a vessel for aerosol.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: January 28, 1992
    Assignees: Mitsui Toatsu Chemicals, Inc., Kabushiki Gaisha Tokai
    Inventors: Hideo Amemiya, Minoru Kuroda, Tomio Nitta