Liquid coating of film-forming resin and particles chemically modified to lower surface tension

US6790904B2 · kind B2 · utility

Assignee

• PPG Industries Ohio, Inc. · US

Inventors

• Daniela White · Pittsburgh, US
• James B. O'Dwyer · Gibsonia, US
• Michael A. Mayo · Pittsburgh, US
• Laura E. Poindexter · Pittsburgh, US
• John R. Schneider · Allison Park, US
• Michael White · Oswego, US
• Richard J. Sadvary · Washington, US
• Shiryn Tyebjee · Washington, US
• Joseph M. Carney · Vandergrift, US
• Lawrence G. Anderson · Washington, US
• Dennis A. Simpson · Sarver, US
• Thomas R. Hockswender · Gibsonia, US

Key dates

• Filing date: Jun 3, 2002
• Grant date: Sep 14, 2004
• Expiry date: Jul 28, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31511
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Liquid coating compositions having improved mar and scratch resistance are disclosed. The coatings generally comprise one or more particles that have been modified to render the particles more surface active. The improved resistance is achieved without affecting the appearance or mechanical performance of the coatings. Methods for using the coatings, and the substrates coated therewith, are also disclosed.