Weatherable coextruded flexible films and laminated structure
AssigneeThe Dow Chemical Company
InventorRobert H. Kelch
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Abstract
A flexible weather resistant film comprising a weather resistant layer of a blend of a vinyl chloride polymer and chlorinated polyethylene and a second layer comprising a normally solid thermoplastic adhesive. Improved performance is obtained when the first layer additionally comprises an interpolymer of ethylene and at least one carboxylic acid or ester thereof containing ethylenic unsaturation.
Claims10
A coextruded flexible film particularly adapted for use as a weatherable surface coating by lamination to a substrate having a first layer comprising a blend of a vinyl chloride polymer, an interpolymer comprising ethylene and at least one carboxylic acid or ester thereof containing ethylenic unsaturation, and a chlorinated polyolefin and a second layer comprising a normally solid thermoplastic adhesive comprising an interpolymer of an olefin and at least one copolymerizable comonomer selected from the group consisting of carboxylic acids and esters thereof having ethylenic unsaturation.
Dependencies are inferred from the claim text.