Patent ID: 6719742
Filing Date: 2004-04-13
Classification: A61F,A61L,B32B

Abstract:
A multilayer film comprising:a first microporous layer having a thickness less than about 30 micrometers and comprising (i) at least 35%, by weight, filler and (ii) polymer; a second microporous layer substantially continuously joined to said first layer, said second layer having a thickness less than about 30 micrometers and comprising (i) at least 35%, by weight, filler, (ii) polymer and (iii) a coloring agent; said multilayer film having a total basis weight less than about 45 g/m2, a WVTR in excess of 500 g/m2/24 hours and a hydrohead of at least 50 mbars and further wherein said multilayer film has embossed and non-embossed regions wherein the embossed regions color-contrast with said non-embossed regions.