Patents by Inventor David J. Augustini

David J. Augustini 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 coating composition and bath thereof and process for retarding the growth of bacteria for such a bath
    Patent number: 6017431
    Abstract: Electrodepositable coating composition bath is prepared and maintained to reduce the growth of bacteria in and around the bath. The composition has dispersed in an aqueous medium a resinous phase, said composition having a pH of at least 5, said resinous phase having basic nitrogen groups which are at least partially neutralized with an acid of the formula: ##STR1## wherein R is hydrogen or an alkyl group with one to four carbon atoms. The amount of this acid to neutralize the cationic resinous phase can be an initial amount greater than 90 of the milliequivalents of sulfamic acid based on the total milliequivalents of neutralizing acid in the bath for the electrodeposition coating of articles in the bath. Also, the bath is maintained by post addition of sulfamic acid to a level of greater than 80 weight percent of the milliequivalents of neutralizing acid when the bath has less than or greater than 90 weight percent of the milliequivalents of neutralizing acid in the bath as sulfamic acid.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: January 25, 2000
    Assignee: PPG Industries Ohio, Inc.
    Inventors: David J. Augustini, Victor G. Corrigan, William D. Cook, Alan J. Kaylo