| abstract |
Latices based on conjugated dienes are produced using emulsion polymerization by introducing the monomers to be polymerized into the initially introduced seed latex in the presence of a free-radical forming activator and an emulsifier in such a manner that the ratio of the monomer polymerization rate to the monomer feed rate is less than 0.7:1 and by performing polymerization up to a monomer conversion of >/=95% at temperatures of 10 to 85 DEG C., wherein the addition of the emulsifier is controlled in such a manner that the final particle size (TGL) of the latex to be produced is governed by the following equation:TGL=TGSx(mL/DL)+E,fra 1/3+EE (mS/DS)+E,fra 1/3+EE ,in which DL=density of the latex particles in the latex to be produced DS=density of the particles of the seed used mL=mass of the latex particles in the latex to be produced mS=mass of the particles of the seed used TGL=particle size of the latex to be produced TGS=particle size of the seed used. |