Patents by Inventor Roger Sidney Arthur Kelly

Roger Sidney Arthur Kelly 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).

  • Coated polyester film assembly with a primer layer
    Patent number: 4098952
    Abstract: Polyester films are primed with copolymers of acrylic or methacrylic acid esters, glycidyl acrylate or methacrylate, and acrylonitrile, optionally with an acrylic or methacrylic comonomer having a functional hydrophilic group, e.g. hydroxyethyl methacrylate. When the priming polymer contains less than 20 mole % of acrylonitrile as comonomer it is preferably cross-linked with an agent such as a melamine formaldehyde condensate.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: July 4, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Roger Sidney Arthur Kelly, John Robert Wilson
  • Processes for coating films
    Patent number: 4066820
    Abstract: Substrate layers comprising an acrylic or methacrylic copolymer or a copolyester on a polyester film support are coated with an aqueous latex or solution comprising an acrylic or methacrylic copolymer, an unhydrolyzed or partially hydrolyzed polymer or copolymer of vinyl acetate or a copolymer of vinylidene chloride together with a crosslinking component. The coated films may be used in a variety of end uses, including drafting films.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: January 3, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Roger Sidney Arthur Kelly, John Robert Wilson