Patents by Inventor Joseph E. Plasynski

Joseph E. Plasynski 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).

  • Epoxy resin advancement using urethane polyols and method for use thereof
    Patent number: 4931157
    Abstract: An ungelled reaction product of a polyepoxide and an active hydrogen-containing material containing at least two active hydrogens per molecule is disclosed. The active hydrogen-containing material being a hydroxyalkyl-substituted urethane in which the hydroxy group is in the beta position to the urethane group. The reaction product is useful as a precursor in making cationic resins for use in cationic electrodeposition.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: June 5, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Joseph T. Valko, Joseph E. Plasynski, Robert D. Miller
  • Cationic electrodepositable compositions containing formaldehyde scavenger
    Patent number: 4605478
    Abstract: Formaldehyde-containing cationic electrodepositable compositions to which are added a formaldehyde scavenger are disclosed. Also disclosed are the use of these compositions in a method of cationic electrodeposition. Free formaldehyde in cationic compositions can lower the pH of the compositions making them more corrosive to the metal parts such as ferrous metal tanks and attending piping and pumps in contact with such compositions. The presence of the formaldehyde scavenger in such compositions stabilizes the pH.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: August 12, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Roger M. Christenson, Joseph T. Valko, Joseph E. Plasynski, Roger L. Scriven
  • Cationic electrodepositable compositions containing formaldehyde scavenger
    Patent number: 4560717
    Abstract: Formaldehyde-containing cationic electrodepositable compositions to which are added a formaldehyde scavenger are disclosed. Also disclosed are the use of these compositions in a method of cationic electrodeposition. Free formaldehyde in cationic compositions can lower the pH of the compositions making them more corrosive to the metal parts such as ferrous metal tanks and attending piping and pumps in contact with such compositions. The presence of the formaldehyde scavenger in such compositions stabilizes the pH.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: December 24, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Roger M. Christenson, Joseph T. Valko, Joseph E. Plasynski, Roger L. Scriven
  • Cationic electrodeposition employing novel mercapto chain extended products
    Patent number: 4292155
    Abstract: Cationic electrodeposition employing novel chain-extended cationic resinous products is disclosed. The products are formed by chain extending polyepoxides with polymercapto compounds and reacting with amines to provide cationic groups.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: September 29, 1981
    Assignee: PPG Industries, Inc.
    Inventors: Joseph F. Bosso, Richard M. Nugent, Joseph E. Plasynski
  • Novel mercapto chain extended products and their use in cationic electrodeposition
    Patent number: 4260720
    Abstract: Novel chain-extended cationic resinous products suitable for use in cationic electrodeposition are disclosed. The products are formed by chain extending polyepoxides with polymercapto compounds and reacting with amines to provide cationic groups.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: April 7, 1981
    Assignee: PPG Industries, Inc.
    Inventors: Joseph F. Bosso, Richard M. Nugent, Joseph E. Plasynski