Patent ID: 8037550

Claim:
A method of reducing the chemical permeation after 10,000 Gelbo flex cycles in a chemical protective laminate by at least 25 percent comprising: forming a chemical protective laminate having a HD permeation of less than 20 μg/cm 2 comprising providing a selectively permeable chemical protective film having a stiffness greater than about 20 g and an elastic textile; applying an adhesive with a dot spacing greater than 400 μm to the selectively permeable chemical protective film; pre-stretching the elastic textile; and laminating the selectively permeable chemical protective film and the elastic textile to form a chemical protective laminate having an elongation greater than about 50% at 4 lbf, wherein the chemical protective laminate has an HD permeation that is at least 25 percent less than the same laminate made without the step of pre-stretching the elastic textile.