The present invention is directed toward a multilayer, pressure-sensitive adhesive construction wherein one layer is formed of a first adhesive composition having a first glass transition temperature, and at least a second layer is formed of a second adhesive composition having a second glass...http://www.google.es/patents/US5827609?utm_source=gb-gplus-sharePatente US5827609 - Multilayer Pressure-sensitive adhesive construction
Multilayer Pressure-sensitive adhesive construction
