The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2007
Filed:
May. 07, 2004
Charles M. Kania, Natrona Heights, PA (US);
Roxalana L. Martin, Pittsburgh, PA (US);
Carolyn A. K. Novak, Gibsonia, PA (US);
Thomas R. Hockswender, Gibsonia, PA (US);
Mark A. Tucker, Gibsonia, PA (US);
Mary Beth Grolemund, Sarver, PA (US);
Deirdre Ragan, Gibsonia, PA (US);
Alicia Williams, Greensboro, NC (US);
Charles M. Kania, Natrona Heights, PA (US);
Roxalana L. Martin, Pittsburgh, PA (US);
Carolyn A. K. Novak, Gibsonia, PA (US);
Thomas R. Hockswender, Gibsonia, PA (US);
Mark A. Tucker, Gibsonia, PA (US);
Mary Beth Grolemund, Sarver, PA (US);
Deirdre Ragan, Gibsonia, PA (US);
Alicia Williams, Greensboro, NC (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Provided is a film-forming composition substantially free of organic solvent which includes an aqueous dispersion of polymeric microparticles prepared by emulsion polymerization of a monomeric composition containing (1) at least 10 percent by weight of one or more vinyl aromatic compounds; (2) 0.1 to 10 percent by weight of one or more carboxylic acid functional polymerizable, ethylenically unsaturated monomers; (3) 0 to 10 percent by weight of one or more polymerizable monomers having one or more functional groups capable of reacting to form crosslinks; and (4) one or more polymerizable ethylenically unsaturated monomers. Each of (1), (2), (3) and (4) are different one from the other and at least one of (3) and (4) is present in the monomeric composition. Multi-layer composite coatings and coated substrates also are provided.