Extrusion coated barrier film
AssigneeADLAM Films, LLC
InventorSteve Snook
Life of this patent
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Abstract
The present development is an extrusion coated barrier film with perforated holes for breathability and a moisture vapor barrier. More specifically, the coated barrier material comprises biaxially oriented nylon film extrusion coated with a blend of an acid copolymer and at least one block copolymer material made up of rigid polyamide blocks and soft polyether blocks. The extrusion coated barrier film can be thermally laminated to expanded polystyrene (EPS) foam boards, which can be used as housewrap, roofing underlayment, or in other construction materials.
Claims15
A barrier film comprising a biaxially oriented nylon film extrusion coated with a polymer blend consisting essentially of ethylene-methylacrylate copolymer and at least one block copolymer, wherein the at least one block copolymer comprises rigid polyamide blocks and soft polyether blocks.
A barrier film comprising a biaxially oriented nylon film extrusion coated with a polymer blend, wherein the polymer blend consists of (a) an ethylene-methylacrylate copolymer, and (b) a block copolymer comprising rigid polyamide blocks and soft polyether blocks.
Dependencies are inferred from the claim text.