ADHESIVE HAVING WATER VAPOUR BARRIER PROPERTIES COMPRISING INCIPIENTLY POLYMERIZED EPOXY SYRUP.

摘要

An adhesive having water vapour barrier properties, comprising an adhesive base composed of - at least one epoxy syrup - at least one elastomer - at least one initiator - optionally at least one tackifier resin and - optionally at least one further reactive resin and optionally a solvent, wherein the adhesive base without solvent has a water vapour permeation rate after activation of the reactive resin component of less than 100 g/m2d, preferably of less than 60 g/m2d, in particular less than 30 g/m2d, wherein the epoxy syrup comprises bisepoxy monomers and high molecular weight uncrosslinked polyepoxies produced therefrom, exhibits good barrier properties and is also sufficiently pressure sensitive to achieve easy handleability..