Process for preparing equilibration products of organosiloxanes, the organopolysiloxanes thus obtainable, and use thereof
AssigneeGoldschmidt GmbH
InventorsMichael Ferenz, Sascha Herrwerth, Wilfried Knott
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Abstract
The invention relates to a process for preparing equilibration products of organosiloxanes by rearrangement of the siloxane bond over a cation exchange resin, to the organopolysiloxanes thus obtainable, and to their use.
Claims12
A process for preparing SiH-functional organosiloxane equilibration products by rearrangement of the siloxane bond over a sulfonic-acid cation exchange resin, an organosiloxane or organosiloxane mixture utilized as starting material being contacted at a temperature of 10° C. to 120° C. with a macrocrosslinked cation exchange resin containing sulfonic acid groups, and the equilibrated organosiloxanes obtained being isolated, which comprises using a cation exchange resin for which the product P of its specific surface area and its average pore diameter is P<2.2×10−3 m3/kg and the specific surface area A is <35 m2/g.
Dependencies are inferred from the claim text.