METHOD FOR PREPARING A COATED SUBSTRATE

摘要

A method for preparing a coated substrate (34) comprising the steps of: providing a substrate (26); and extrusion coating a monolithic layer of breathable polymer (28) onto a surface of the substrate (26) ; wherein maleic anhydride and acrylic ester are added to the breathable polymer to enhance the melt strength and bond strength of the breathable polymer (28) onto the surface of the substrate (26).