Patents

Exterior Multi-Layer Composite Coatings from PPG

August 10, 2005

Patent No. U.S. 6,517,940 B1
PPG Industries has received a patent for a multi-layer composite coating composition comprising an exterior-durable, organic solventborne base coating and an aqueous top coating, wherein the aqueous top coating composition is substantially free of fluoropolymer, and wherein the durable base coating is a pigmented thermoplastic composition comprising 45-85% weight based on total resin solids present in the composition of a poly vinylidene fluoride, and 15-55% weight based on total resin solids present in the composition of a thermoplastic acrylic polymer.