Patent ID: 8354160
Filing Date: 2013-01-15
Classification: B05D,C09D,Y10T

Abstract:
1. An article comprising: a substrate having a micropatterned surface comprising raised portions, recessed portions or a combination thereof; and a hydrophobic coating composition on the substrate located at least on the portions between the raised portions or in the recessed portions and comprising: a cross-linked fluoropolymer binder selected from the group consisting of poly-1,1-difluoroethylene; copolymers of 1,1-difluoroethylene and hexafluoropropylene, copolymers of tetrafluoroethylene and hexafluoropropylene; copolymers of 1,1-difluoroethylene and tetrafluoroethylene; terpolymers of hexafluoropropylene, tetrafluoroethylene, and ethylene; and terpolymers of tetrafluoroethylene, hexafluoro-propylene and 1,1-difluoroethylene and hydrophobic microparticles, hydrophobic nanoparticles, or a mixture thereof; in sufficient quantity to provide a very hydrophobic or superhydrophobic surface, the particle size of said hydrophobic particles being smaller than the center-to-center distance between the raised or recessed portions of the micropatterned surface.