Patents by Inventor Hiroyuki Kigo

Hiroyuki Kigo 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).

  • Vinylidene chloride polymer latex
    Patent number: 4211684
    Abstract: A latex obtained by emulsion polymerizing (a) 50 to 95 parts by weight of vinylidene chloride; (b) 0.5 to 30 parts by weight of propylene; (c) 4.5 to 20 parts by weight of a comonomer such as methyl acrylate; and, optionally, (d) no more than 5 parts by weight of a polar comonomer such as acrylic acid. Such latices are eminently suited for use as coating compositions due to their superior low temperature heat-sealing properties and decreased blocking tendencies.
    Type: Grant
    Filed: August 18, 1978
    Date of Patent: July 8, 1980
    Assignee: Asahi-Dow Limited
    Inventors: Masaoki Koyama, Hiroyuki Kigo