Coating processes – With post-treatment of coating or coating material – Heating or drying
Reexamination Certificate
2011-07-19
2011-07-19
Cameron, Erma (Department: 1715)
Coating processes
With post-treatment of coating or coating material
Heating or drying
C427S393500, C427S412500
Reexamination Certificate
active
07981478
ABSTRACT:
A liquid fluoropolymer coating composition and a process for using the composition to make fluoropolymer coated polymeric substrates. The liquid fluoropolymer composition comprises fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride polymer, solvent, and compatible adhesive polymer comprising functional groups selected from carboxylic acid, sulfonic acid, aziridine, amine, isocyanate, melamine, epoxy, hydroxy, anhydride and mixtures thereof. In the process, the composition is applied to a polymeric substrate comprising functional groups on its surface that interact with said compatible adhesive polymer to promote bonding of said fluoropolymer coating to said substrate. The solvent is removed from the coating composition applied to the substrate to form a fluoropolymer coating on the substrate.
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DeBergalis Michael
Snow Larry Glen
Cameron Erma
E. I. Du Pont de Nemours and Company
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