A multilayer adhesive construction and method for production of said construction are provided. The construction comprises a facestock, a barrier layer on the facestock, and an adhesive layer on the barrier layer. The barrier layer comprises a pressure-sensitive adhesive which inhibits the migration...http://www.google.fr/patents/US5993961?utm_source=gb-gplus-shareBrevet US5993961 - Use of pressure-sensitive adhesive as a barrier coating
Use of pressure-sensitive adhesive as a barrier coating