US Patent 7060762 Preparation of aqueous styrene-butadiene polymer dispersions

A process for preparing an aqueous styrene-butadiene polymer dispersion by free-radical aqueous emulsion polymerization of a monomer mixture M that comprisesstyrene,butadiene, and if desiredup to 30% by weight, per 100% by weight of monomers, of ethylenically unsaturated comonomers other than styrene and butadiene;