ROBUST ELASTOMERIC MATERIALS

摘要

A thin elastomeric laminate can be made by bonding two bilaminate precursors. The bilaminate precursors are made from a thin elastomeric film laminated to a thin nonwoven fabric. Two layers of bilaminate precursor are then bonded such that the free film faces of both precursors are facing one another. The resulting laminates exhibit good robustness and resist the formation of activation pinholes.

主权项

1. A multilayer elastomeric laminate, comprising:
a first bilaminate layer comprising a first film layer comprising an elastomeric polymer, and a first substrate layer, wherein the first film layer and the first substrate layer are bonded substantially across the width of the narrowest of the respective layers, wherein the resulting first bilaminate has a first film surface and a first substrate surface; and a second bilaminate layer comprising a second film layer comprising an elastomeric polymer, and a second substrate layer, wherein the second film layer and the second substrate layer are bonded substantially across the width of the narrowest of the respective layers, wherein the resulting second bilaminate has a second film surface and a second substrate surface, wherein the first bilaminate layer and the second bilaminate layer are adhesively bonded together so that said first and second film surfaces face each other, and wherein each of the first and second bilaminate layers is preformed as a separate precursor layer, prior to being adhesively bonded together, with the first and second bilaminate layers each having a total film basis weight less than about 30 gsm.