Process for preparing aqueous dispersion of copolymers

摘要

The dispersions are prepared by aqueous emulsion polymerisation of ethylenically unsaturated monomers containing at least 60 % of styrene and/or butadiene and/or acrylic ester and/or vinyl nitrile in the presence of a chain transfer agent chosen from diphenyl disulphides substituted by an alkoxy, alkyloxy or acylamino radical. …The dispersions obtained have the advantage of exhibiting a low odour level.