Patents by Inventor Michael G. Sandala

Michael G. Sandala 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).

  • Process for preparing an article having deposited thereon a photoimageable electrodepositable photoresist composition
    Patent number: 5595859
    Abstract: An electrodepositable photoresist composition comprising an aqueous dispersion of: (a) a water-dispersible neutralized cationic polymeric material having a pendant unsaturation, (b) a nonionic unsaturated material and (c) a photoinitiator; characterized in that it can form smooth, thin and pinhole free coatings and further characterized in that the film is capable of being selectively insolubilized by patterned radiation exposure such that the unexposed portion of the film is soluble in dilute aqueous acid and the exposed portion is insoluble in said aqueous acid.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 21, 1997
    Assignee: PPG Industries, Inc.
    Inventors: Kurt G. Olson, Michael G. Sandala, Steven R. Zawacky, Charles F. Kahle, II, Masayuki Nakajima
  • Low temperature curable aqueous electrodepositable coating compositions
    Patent number: 4812215
    Abstract: An aqueous, cationically electrodepositable coating composition contains a ternary sulfonium or quaternary phosphonium group containing resin, an aminoplast or phenoplast crosslinking agent and a catalytic amount of a non-ionic ester of a sulfonic acid as latent acid catalyst to catalyze the reaction between the sulfonium or phosphonium group containing resin and the aminoplast crosslinking agent.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: March 14, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Richard F. Karabin, Ken W. Niederst, Michael G. Sandala, Edward R. Coleridge