EMULSION POLYMER COMPRISING ACTIVATORS, PROCESS FOR PREPARATION THEREOF AND USE THEREOF IN TWO-COMPONENT OR MULTICOMPONENT SYSTEMS

摘要

The invention describes an emulsion polymer obtainable by polymerizing a mixture comprising a) 5 to 99.9% by weight of one monomer or of a multitude of monomers having a water solubility of 2% by weight at 20°C selected from the group consisting of monofunctional (meth)acrylate monomers, styrene and vinyl esters; b) 0 to 70% by weight of one monomer or of a multitude of monomers copolymerizable with the monomers a); c) 0 to 20% by weight of one di- or polyvinylically unsaturated compound or of a multitude thereof; d) 0 to 20% by weight of one polar monomer, or of a multitude thereof, having a water solubility of 2% by weight at 20°C; and e) 0.1 - 95% by weight of at least one activator, wherein components a) to e) together add up to 100% by weight of the polymerizable constituents of the mixture, and the emulsion polymerization is characterized in that e1) the activator is a compound of the formula I in which the R1 to R7 and X radicals are each defined as specified in the description; and in that e2) the activator e) is incorporated into the emulsion polymer via covalent bonds. The emulsion polymer allows the formation of core-shell polymers with protected polymer-fixed activator, and can be used particularly advantageously to control the pot life of two-component or multicomponent systems, for example in adhesives, casting resins, floor coatings, materials for reactive plugs, dental materials or in sealant materials.