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

摘要

The invention describes anemulsion polymer which can be obtained by polymerization of a mixturecomprisinga) from 5 to 99.9% by weight of one or more monomers having a solubility inwaterof 2% by weight at 20°C and selected from the group consisting ofmonofunctional (meth)acrylate monomers, styrene and vinyl esters;b) from 0 to 70% by weight of one or more monomers which can be copolymerizedwith the monomers a);c) from 0 to 20% by weight of one or more doubly or multiply vinylicallyunsaturatedcompounds;d) from 0 to 20% by weight of one or more polar monomers having a solubilityinwater of 2% by weight at 20°C; ande) 0.1 - 95% by weight of at least one activator,with the components a) to e) adding up to 100% by weight of the polymerizableconstituents of the mixture, and is characterized in thate1) the activator is a compound of the Formula I,(see Formula I)where the radicals R1 to R7 and X have the meanings given in the description;and inthate2) the activator e) is incorporated via covalent bonds into the emulsionpolymer. Theemulsion polymer makes it possible to form core-shell polymers having aprotectedactivator fixed to the polymer and can be used particularly advantageously forcontrolling the pot life of two-component or multicomponent systems, forexample inadhesives, pourable resins, floor coatings, compositions for reactive pegs,dentalcompositions or sealing compositions.