Patents by Inventor Oscar E. Roberto

Oscar E. Roberto 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).

  • Dual coated metal substrates and methods of making the same
    Patent number: 5691048
    Abstract: Article of manufacture and method of making the same in which a metal substrate has an undercoating is made from a combination of at least one pulverulent metal and a transition metal compound and a coating thereon containing an autodeposited resin formed under autodepositing conditions.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: November 25, 1997
    Assignee: Henkel Corporation
    Inventors: Oscar E. Roberto, Marc A. Maxim
  • Treatment to improve corrosion resistance of autodeposited coatings on metallic surfaces
    Patent number: 5667845
    Abstract: A process enhances corrosion resistance of autodeposited coatings on metallic surfaces by contacting the uncured coating on the metallic surface with a reaction rinse solution containing complex fluoride anions. In a preferred use, because the protective properties of the autodeposited coatings are improved on both cold rolled and galvanized steel, both may be processed simultaneously, providing practical and economic advantages.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: September 16, 1997
    Assignee: Henkel Corporation
    Inventors: Oscar E. Roberto, Shawn E. Dolan
  • Dual coated metal substrates and method of making
    Patent number: 5486414
    Abstract: Article of manufacture and method of making the same in which a metal substrate has an undercoating is made from a combination of at least one pulverulent metal and a transition metal compound and a coating thereon containing an autodeposited resin formed under autodepositing conditions.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: January 23, 1996
    Assignee: Henkel Corporation
    Inventors: Oscar E. Roberto, Marc A. Maxim
  • Treatment to improve corrosion resistance of autodeposited coatings of metallic surfaces
    Patent number: 5372853
    Abstract: A process of retaining or enhancing corrosion resistance of autodeposited coatings on metallic surfaces by contacting the uncured coating on the metallic surface with a rinse solution containing hydrofluorozirconic acid or a salt thereof, such as nickel or cobalt salt. The metallic surface may be cold rolled steel or galvanized steel. The resinous autodeposited coatings are poly{vinylidene chloride} polymers. Copolymers containing at least 50% by weight poly{vinylidene chloride} are suitable. Because the protective properties of the autodeposited coatings are improved on both types of steel, both may be processed simultaneously, providing practical and economic advantages.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: December 13, 1994
    Assignee: Henkel Corporation
    Inventor: Oscar E. Roberto