Redox system and process

   
   

A process for preparing an aqueous emulsion polymer including providing at least one ethylenically unsaturated monomer and a free radical redox initiator system under emulsion polymerization conditions, the redox initiator system including an oxidant; a reductant and a metal promoter complex, and effecting the polymerization of at least some of the ethylenically unsaturated monomer is provided. Also provided is a process for reducing the residual ethylenically unsaturated monomer content of an aqueous emulsion polymer.

Um processo para preparar um polímero aqueous do emulsion including fornecer ao menos um monomer ethylenically unsaturated e um sistema redox sob circunstâncias da polimerização do emulsion, o sistema redox do iniciador do radical livre do iniciador including um oxidant; um complexo reductant e do metal do promoter, e efetuar a polimerização ao menos de algum do monomer ethylenically unsaturated são fornecidos. É fornecido também um processo para reduzir o índice ethylenically unsaturated do monomer do residual de um polímero aqueous do emulsion.

 
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> High solids emulsions of silylated elastomeric polymers

> Rubber powders having pulverulent silicatic fillers and prepared from rubbers present in organic solvents, a process for their preparation, and their use

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