Patents Represented by Attorney Krisanne Shidler

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  • Method for preparing color-clear composite coatings having resistance to acid etching
    Patent number: 5814410
    Abstract: A color-plus-clear coating system is disclosed. A pigmented or colored basecoat is first applied to a substrate followed by the application of a transparent topcoat to the basecoat. The transparent topcoat composition is a crosslinkable composition comprising (1) a material containing a plurality of carbamate and/or urea functional groups and (2) an aminoplast crosslinking agent. The topcoat composition provides a composite coating with improved acid etch resistance, making the composite coating particularly useful as an automotive topcoat.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: September 29, 1998
    Assignee: PPG Industries, Inc.
    Inventors: Debra L. Singer, Shanti Swarup, Michael A. Mayo