Process for purifying polyol dispersions
AssigneeBASF SE
InventorsDejan PETROVIC, Christiane Parzyk
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Abstract
The present invention relates to a process for purifying a polyol dispersion by stripping by means of at least one rotating body, to the polyol dispersion obtainable by the process according to the invention, and to the use thereof for preparing polyurethanes.
Claims14
1) A process for purifying a polyol dispersion comprising at least one polyol and at least one filler, which comprises stripping the polyol dispersion by means of at least one rotating body.
10) The process according to any of claims 1 to 9, wherein the fillers present in the polyol dispersion are selected from polymeric, organic or inorganic fillers, or a mixture thereof. 811) The process according to claim 10, wherein the mean particle size of the fillers is 0.05 μm-500 μm, preferably 0.1 μm-50 μm, and/or wherein the distribution of the fillers is monomodal, bimodal or multimodal.
Dependencies are inferred from the claim text.