Patent ID: 7238386
Filing Date: 2007-07-03
Classification: B05D,C03C

Abstract:
1. A method for coating a substrate comprising: providing a coating composition; filtering the coating composition by passing the coating composition through a filtering device comprising at least one filtering assembly comprising at least one filter, and applying the coating composition after filtering to the substrate; wherein the at least one filtering assembly has a filtration factor (γ) determined by a Formula I of at most 250,000 s −1 , wherein η is viscosity of the coating composition at the respective temperature of the coating composition within the respective filtering assembly, and ΔP is the pressure drop measured across the respective at least one filtering assembly and is between about 0 and about 80 psig, and the pore size of at least one filter of the at least one filtering assembly is at most 10 microns, and the respective temperature of the coating composition within the respective at least one filtering assembly is at most about 120° F.