Structures incorporating blends of grafted fluoropolymer and polyamide
AssigneeE. I. Du Pont de Nemours and Company
InventorPeter Dwight Spohn
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Abstract
A melt-mixed blend of polyamide and grafted fluoropolymer having polar functionality exhibits surprisingly low permeability and can bond to fluoropolymer or polyamide without an intervening adhesive layer. The blend is useful as a component of laminates, such as fuel hose.
Claims16
A structure comprising at least a first layer of a melt-mixed blend comprising polyamide as the matrix of the blend and particles of fluoropolymer having polar functionality dispersed therein, said dispersed fluoropolymer having average particle size of no more than 500 nm, said polar functionality being present as part of an ethylenically unsaturated compound grafted to said fluoropolymer.
A tube comprising at least a first layer of a melt-mixed blend comprising polyamide as the matrix of the blend and particles of fluoropolymer having polar functionality dispersed therein, said dispersed fluoropolymer having average particle size of no more than 500 nm, said polar functionality being present as part of an ethylenically unsaturated compound grafted to said fluoropolymer.
Dependencies are inferred from the claim text.