Fluoropolymer composition for lining adhesion to a surface
AssigneeE. I. Du Pont de Nemours and Company
InventorJacob Lahijani
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Abstract
A composition of tetrafluoroethylene/perfluoro(ethyl vinyl ether) copolymer particles and metal powder is disclosed that enables the composition to be used for adhering a lining to an interior surface of a hollow article.
Claims13
A dry melt flowable rotolining composition consisting essentially of particles of fluorine exposure-stabilized tetrafluoroethylene/perfluoro(ethyl vinyl ether) copolymer having an average particle size of about 100 to 3000 μm and sphere factor of less than 1.5 and 0.2 to 2 wt % of adhesion promoting, non-bubble promoting metal powder, the formation of said composition occurring after the fluorine exposure of said copolymer to obtain said fluorine exposure-stabilized tetrafluoroethylene/perfluoro(ethyl vinyl ether) copolymer, wherein, upon rotolining said composition on steel, the rotolined composition has an adhesion to said steel characterized by a peel strength of at least 25 lb/in.
Dependencies are inferred from the claim text.