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US 6,441,062 B1Granted
Method for precipitating microsuspension polymers
AssigneeBASF SE
InventorsGraham Edmund Mc Kee, Bernhard Czauderna, Harmut Heinen, Jürgen Koch
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Abstract
In a process for precipitating microsuspension polymers from a suspension comprising them, a polymer dispersion prepared by emulsion polymerization is added to the suspension.
Claims9
A process for precipitating microsuspension polymers comprising
- polymers having a glass transition temperature (Tg) of less than 0° C., or in there are two or more phases, some of which have a glass transition temperature of below 0° C., from a suspension comprising them, which comprises adding a polymer dispersion prepared by emulsion polymerization to the suspension, wherein the emulsion polymer is composed of the same monomers as are used to prepare the microsuspension polymers.
Dependencies are inferred from the claim text.