Patents by Inventor John Pucknat

John Pucknat 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).

  • Cationic electrodepositable resin compositions containing polyurethane resin dispersions
    Patent number: 4761337
    Abstract: Cathodic electrodepositable resin compositions and aqueous electrodeposition coating baths comprising these resins are disclosed. The resin compositions comprise a cationic amine epoxy resin adducts and a cationic polyurethane resin adduct dispersion. The resin compositions when combined with a cross-linking agent and cathodically electrodeposited produce films which cure to durable, flexible, smooth corrosion-resistant, impact and chip-resistant films.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: August 2, 1988
    Assignee: BASF Corporation
    Inventors: Matthew Guagliardo, Tapan K. DebRoy, John Pucknat