Patent ID: 7015155
Filing Date: 2006-03-21
Classification: A61F,B32B,C09J,Y10T

Abstract:
1. An elastomeric construction adhesive composition that can be used to create a bonded, elasticized region, comprising: between about 55% and about 65% by weight base polymer selected from the group consisting of polystyrene-polyethylene-polypropylene-polystyrene (SEPS) block copolymer, styrene-isoprene-styrene (SIS,) styrene-butadiene-styrene (SBS) block copolymer, and combinations thereof, the base polymer having a melt flow rate between about 5 and about 100 grams per minute, a Shore A hardness between about 20 and about 70, and may be stretched up to about 1300%; and a high softening point tackifier resin including at least one type of hydrocarbon selected from a group consisting of petroleum distillates, rosin, rosin esters, polyterpenes derived from wood, polyterpenes derived from synthetic chemicals, and combinations thereof, the tackifier having a softening point of at least 80 degrees Celsius, and a viscosity of at least 1500 cps at 182 degrees Celsius; wherein the elastomeric adhesive composition has a viscosity of about 5,000 to 80,000 cps at between 177 and 204 degrees Celsius and can be stretched prior to lamination.