Continuous process for producing crosslinkable organopolysiloxane compositions
AssigneeWacker Chemie AG
InventorsPeter Schöley, Uwe Scheim, Steffen Lau
Life of this patent
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Abstract
RTV-1 compositions are continuously produced from essentially linear organosilicon compounds having at least two condensable groups bound to silicon, filler and, optionally, further constituents, by mixing in one step in a single pass through the mixing zone of a rotor-stator mixer, wherein the pressure at the outlet of the mixing apparatus is at least 100 hPa greater than that at the inlet of the mixing apparatus.
Claims14
A process for the continuous production of moisture-curable RTV-1 compositions, in which (A) an essentially linear organosilicon compound having at least two condensable groups bound to silicon, (B) filler and, optionally, further constituents are mixed together in one step in a single pass through the mixing zone of a mixer which comprises a rotor-stator mixing apparatus having a rotor which rotates within a stator having side walls, and slings the composition against the side walls of the stator by centrifugal force, the composition passing through slits in the side walls of the stator, wherein the pressure at the outlet of the mixing apparatus is at least 100 hPa greater than that at the inlet of the mixing apparatus.
Dependencies are inferred from the claim text.