Patent · US Active

Coating compositions providing improved mar and scratch resistance and methods of using the same

US8258225B2 · kind B2 · utility

4Cited by

15References

24Claims

0Family size

Assignee

PPG Industries Ohio, Inc. · US

Inventors

Karen A. Barkac · Murrysville, US
Anthony M. Chasser · Washington, US
Roy E. Dean · Lower Burrell, US
Mildred Lisa Perrine · Washington, US
Deirdre Ragan · Gibsonia, US
Karen Rechenberg · Gibsonia, US
John R. Schneider · Allison Park, US

Key dates

Filing date	Apr 25, 2005
Grant date	Sep 4, 2012
Priority date	—
Expiry date	Aug 23, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31989
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Disclosed is a coating formed from a composition containing a film-forming resin and a plurality of particles dispersed in the resin. The average particle size of the particles is 0.1 to 50 microns, and the particles have a hardness sufficient to impart greater mar and/or scratch resistance to the coating as compared to a coating where no particles are present. Also, the difference between the refractive ranges from 1 to 1.5. A method for preparing a powder coating including the particles also is provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.