Patents Represented by Attorney P. A. Bielinski

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  • 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
  • Polyacrylate rubber-modified vinylidene chloride copolymer compositions
    Patent number: 4206105
    Abstract: A blend of vinylidene chloride copolymer and a vinylidene chloride copolymer-polyacrylate rubber latex. The latex component is prepared by emulsion polymerization of a mixture of vinylidene chloride monomer, selected comonomer and a cross-linked polyacrylate rubber obtained from specified acrylate monomers. Articles made from these blends exhibit good low temperature strength properties due to the incorporation of the polyacrylate rubber.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: June 3, 1980
    Assignee: The Dow Chemical Company
    Inventor: Owen L. Stafford