David W Story

US Patent:

20120057224, Mar 8, 2012

Filed:

Sep 30, 2008

Appl. No.:

12/680831

Inventors:

David Story - Waterville OH, US
Mark Slawikowski - Brighton MI, US

International Classification:

G02B 5/26
G02B 5/08
B05D 1/28
B05D 1/02
B05D 5/06
B05D 3/02

US Classification:

359359, 427 8

Abstract:

A method of maintaining a color of a cured film formed from a coating composition on a metal substrate relative to a standard comprises the steps of providing a resin, providing a pigment, combining the pigment and the resin to form the coating composition, applying the coating composition to the metal substrate, curing the coating composition to form the cured film having a color defined by an L value, an a value, and a b value, and maintaining the color relative to the standard having an Ls value, an as value, and a bs value whereby the L value, the a value, and the b value each change less than 20% respectively as compared to the L5 value, the as value, and the bs value of the standard. The cured film has a solar reflectance of greater than or equal to 0.75 in the wavelength from 250-2,500 nm.