Process for preparing filterable polystyrene dispersion
AssigneeBASF SE
InventorsJosef Wunsch, Lembit Tuttelberg, Fritz Heinrich, Siegbert Brand
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Abstract
Particulate, filterable polystyrene formulations are obtained by anionic polymerization of styrene in nonaqueous dispersion if the polymerization is carried out in an aliphatic hydrocarbon as the dispersing medium and with a styrene/diene/styrene three-block copolymer, for example based on polybutadiene or polyisoprene, as the dispersant.
Claims9
A process for the preparation of polystyrene by anionic polymerization of styrene in nonaqueous dispersion, wherein the polymerization is carried out in an aliphatic hydrocarbon as the dispersing medium and with a styrene/diene/styrene three-block copolymer as the dispersant.
Dependencies are inferred from the claim text.