Patents by Inventor Robert Henry Steiner

Robert Henry Steiner 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).

  • Heat sealable thermoplastic films
    Patent number: 4058645
    Abstract: A coating composition to improve the physical characteristics of thermoplastic films, such as oriented polypropylene, comprising (1) an acrylic terpolymer of methyl methacrylate, methyl acrylate, and methacrylic acid; and (2) an aqueous-alkali soluble rosin, comprising an adduct of rosin with an alpha-beta unsaturated dicarboxylic acid esterified with a polyhydric alcohol.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: November 15, 1977
    Assignee: Mobil Oil Corporation
    Inventor: Robert Henry Steiner
  • Coating compositions and thermoplastic film substrates coated therewith
    Patent number: 4058649
    Abstract: A multipolymer coating composition particularly adapted for coating thermoplastic film substrates, comprising an interpolymer of (a) vinylidene chloride, (b) an alkyl acrylate such as methyl acrylate and (c) methacrylic acid or mixtures thereof with acrylic acid.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: November 15, 1977
    Assignee: Mobil Oil Corporation
    Inventor: Robert Henry Steiner