Patent ID: 9029277
Filing Date: 2015-05-12
Classification: A61F,B29C,B32B,Y10T

Abstract:
1. A breathable laminate comprising a liquid-resistant, vapor-permeable backing film layer co-extensively in direct joined contact with a liquid- and vapor-permeable nonwoven fabric, wherein the backing film layer of the breathable laminate comprises thinned localized regions which are vapor-permeable and liquid-resistant and thicker regions which are vapor-impermeable and liquid-resistant, wherein the backing film layer comprises a thermoplastic resin-containing composition and the nonwoven fabric comprises a blend of first decitex fibres and second decitex fibres which differ by at least 1 decitex, wherein the first decitex fibres have a decitex in a range of from 3.5 to 15 and the second decitex fibres have a decitex in a range of from 0.5 to 3.5, and wherein the first decitex fibres are present in the blend in an amount of from 10% to 90% by weight and the second decitex fibres are present in the wherein the thinned localized regions comprise microscale V shape channels in the backing film layer, wherein the channels coincide along locations of the first decitex fibres on the nonwoven fabric.