Abstract: A composite, flexible and layered system and method which performs as an adaptable protective membrane (APM). The APM controls the passage of air, liquid water, and water and changes its moisture permeability with the change of humidity on its surface. APM comprises at least two layers with or without additional surface treatments. The first layer is a matrix comprised of a non-woven fibrous material, such as building paper made from cellulose fibers, building paper saturated with asphalt, a combination of cellulose fibers and other synthetic adsorbent fibers, or synthetic polymer fibers that change the rate of water vapor transmission with the moisture content of the membrane. The second layer is a polymer including ingredients to modify its water transport ability. The second layer may be an extrusion coated, liquid applied, or a spray applied coating. The APM is a directionally sensitive membrane, i.e.

Abstract: An adhesive composition and tapes utilizing the adhesive compositions are disclosed. A tape utilizing the adhesive composition of the present invention is particularly suitable for use in closure systems associated with air ducts and air connectors. A composition particularly suitable for use as an antioxidant in adhesive compositions is disclosed.