Patent ID: 8034440

Claim:
An extensible laminate comprising: an extensible nonwoven web; and an elastomeric film including a first layer co-extruded with a second layer, wherein the first layer is less elastic than the second layer, the first layer having a Water Vapor Transmission Rate less than about 500 grams/m 2 /24 hours as measured according to INDA standard test method IST-70.4-99 and including a single-site catalyzed ethylene-alpha olefin copolymer having a density of about 0.860 to about 0.900 grams per cubic centimeter and inorganic filler particles, wherein the first layer includes about 50 to about 90 percent by volume of a single-site catalyzed ethylene-alpha olefin copolymer and about 10 percent to about 50 percent by volume inorganic filler particles, the second layer including a styrene copolymer selected from styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylene/butylene-styrene, styrene-ethylene/propylene-styrene, styrene-(ethylene/propylene)-styrene-(ethylene/propylene), or combinations thereof, wherein the second layer comprises about 55 percent to about 80 percent by volume of the elastomeric film.