Abstract:
Impact resistant polymers having low permeability to gases and vapors which are useful materials for packaging of perishables are prepared by continuously adding the olefinic nitrile monomer and a vinyl aromatic monomer to a polymerization medium containing a latex of a rubber which is a polymer of a conjugated diene monomer, a vinyl aromatic monomer and an olefinic nitrile monomer.
Abstract:
PROCESS FOR IMPROVEMENT OF IMPACT STRENGTH IN RUBBER-MODIFIED NITRILE THERMOPLASTICS Improved impact strength of copolymers of acrylonitrile and styrene prepared in the presence of a diene rubber is achieved presoaking the diene rubber with part or the acrylonitrile and styrene monomers prior to conducting the graft polymerization reaction.