Patents by Inventor Michael A. Polack

Michael A. Polack 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).

  • Photodegradation-resistant electrodepositable primer compositions containing hindering aminoether light stabilizers
    Patent number: 5385962
    Abstract: An electrodepositable primer composition having improved delamination resistance with regard to automotive topcoats is disclosed. The composition is particularly useful in conjunction with topcoats which transmit ultraviolet radiation. The composition includes an ionic resin and a hindered amine light stabilizer (HALS) which is preferably a hindered aminoether light stabilizer. A preferred hindered aminoether light stabilizer is bis-(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl)sebacate. The invention also includes a process for coating a substrate by applying the above-described primer composition and subsequently applying a topcoat. The process can alternatively include applying a standard primer composition to a substrate and subsequently applying a HALS compound to the electrodeposited substrate.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: January 31, 1995
    Assignee: PPG Industries, Inc.
    Inventors: Victor G. Corrigan, Gerald W. Gruber, Michael A. Polack, Robert R. Zwack
  • Photodegradation-resistant electrodepositable primer compositions
    Patent number: 5260135
    Abstract: An electrodepositable primer composition having improved delamination resistance with regard to automotive topcoats is disclosed. The composition is particularly useful in conjunction with topcoats which transmit ultraviolet radiation. The composition includes an ionic resin and a hindered amine light stabilizer (HALS) which is preferably a hindered aminoether light stabilizer. A preferred hindered aminoether light stabilizer is bis-(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl)sebacate. The invention also includes a process for coating a substrate by applying the above-described primer composition and subsequently applying a topcoat. The process can alternatively include applying a standard primer composition to a substrate and subsequently applying a HALS compound to the electrodeposited substrate.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: November 9, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Victor G. Corrigan, Gerald W. Gruber, Michael A. Polack, Robert R. Zwack