Additive composition for mortars, cements and joint compounds and cementitious compositions made therefrom

摘要

An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product cannot only increase one or more properties of the product but can also minimize the use of redispersible polymers in the product.

主权项

1. In a cementitious composition including an inorganic binder and a filler, the improvement comprising a reactive polymeric composition including a nitrogen-containing polymer and a reactive agent capable of crosslinking with the nitrogen of the polymer in situ within the cementitious composition,
wherein the nitrogen-containing polymer comprises monomers selected from the group consisting of vinyl amines, vinyl formamides, ethylene amines, ethylenimines, aminoethyl methacrylates, and caprolactams; and wherein the reactive agent comprises at least one of polyaldehyde salts, polyacid esters, polyvinyl alcohol esters, di-esters, and boric acid.