Aqueous adhesive composition, a process for improving the cohesive and adhesive strength of an adhesive without premature of aqueous base and composite cement)

摘要

This invention solves the problems encountered with conventional cementitious and non-cementitious adhesives by providing an aqueous, quick-set noncementitious composition which is easily applied, develops early cohesive strength and leaves no waste under all curing conditions. The invention is particularly useful as an adhesive used in exterior insulating and finishing systems. This invention also provides a method for improving the early cohesive strength of a non-cementitious adhesive under all curing conditions. The aqueous, quick-set, non-cementitious composition of this invention requires three components: (1) a film-forming latex polymer having anionic character; (2) an amine-containing polymer formed from at least 20% by weight monomer containing amine functional groups; and (3) a volatile base. The method for improving the early cohesive strength of a noncementitious adhesive under all curing conditions involves: (1) forming an non-cementitious adhesive containing: (a) a film-forming latex polymer having anionic character; (b) an amine-containing polymer formed from at least 20% by weight monomer having amine functional groups; and (c) a volatile base; (2) applying the non-cementitious adhesive to the exterior surface of a building or other outdoor structure; and (3) applying a solid or foamed layer of protective material to the non-cementitious adhesive.