Patent ID: 6838407

Claim:
A coating composition made from a mixture of two parts, the first part comprising a solution in organic solvent of a graft-reaction product of a fluoroelastomer selected from the group consisting of a polymer of 1,1-dihydroperfluorobutyl acrylate; copolymer of vinylidene fluoride and chlorotrifluoroethylene; copolymer of vinylidene fluoride and hexafluoropropylene; copolymer of vinylidene fluoride and hydropentafluoropropylene; copolymer of tetrafluoroethylene and propylene; terpolymers of vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene; terpolymer of vinylidene fluoride, tetrafluoroethylene and perfluorovinyl ether, terpolymer of vinylidene fluoride, tetrafluoroethylene, and propylene; and a terpolymer of vinylidene fluoride and hydropentafluoropropylene and tetrafluoroethylene, and a grafting agent grafted to said fluoroelastomer via a primary amine group, said grafting agent containing at least one active hydrogen-containing group, and the second part comprising a curing agent that contains at least one isocyanate group or a group bearing an isocyanate group that bonds to an active-hydrogen-bearing group of said fluoroelastomer, and a reactive crosslinking group that bonds to another active hydrogen-bearing group of said fluoroelastomer.