Cured coatings having improved scratch resistance, coated substrates and methods thereto

US6387519B1 · kind B1 · utility

Assignee

• PPG Industries Ohio, Inc. · US

Inventors

• Lawrence G. Anderson · Washington, US
• Karen A. Barkac · Murrysville, US
• Anthony M. Chasser · Washington, US
• Shawn A. DeSaw · McMurray, US
• Marvis E. Hartman · Pittsburgh, US
• Deborah E. Hayes · Verona, US
• Thomas R. Hockswender · Gibsonia, US
• Kymarie L. Kuster · Pittsburgh, US
• Robert A. Montague · Washington, US
• Masayuki Nakajima · Whitehall, US
• Kurt G. Olson · Gibsonia, US
• Jamel S. Richardson · Ann Arbor, US
• Richard J. Sadvary · Washington, US
• Dennis A. Simpson · Sarver, US
• Shiryn Tyebjee · Washington, US
• Truman F. Wilt · Lock Haven, US

Key dates

• Filing date: Jul 31, 2000
• Grant date: May 14, 2002
• Expiry date: Jul 31, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Cured coatings having particles at a surface region of the cured coating are provided. Also provided are multi-component composite coatings which include a cured basecoat deposited from a pigmented coating composition and a cured topcoat deposited from a topcoating composition. The multi-component composite coatings of the invention provide highly scratch resistant color-plus-clearcoatings capable of retaining scratch resistance after weathering.