Process for polymerizing high nitrile ABS polyblends

摘要

The process relates to polymerizing mixtures of diene rubber with a monomer formulation comprising monovinylidene aromatic and ethylene unsaturated nitrile monomers wherein a late add of monovinylidene aromatic monomer is added after 85 to 98% conversion of the monomer formulation providing high nitrile ABS polyblends having improved color and toughness.