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US 9,540,500 B2Granted
Production of polyether siloxanes
AssigneeEvonik Degussa GmbH
InventorsMichael Ferenz, Stephan Hofmann, Horst Dudzik, Carsten Schiller
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Abstract
Processes for producing polyether siloxanes are provided in which unsaturated polyethers are reacted with one or more SiH-functional siloxanes in the presence of Pt(0) compounds and tertiary amines Also, provided is the use of Pt(0) compounds and tertiary amines for producing polyether siloxanes and to the use of the polyether siloxanes thus obtained.
Claims7
A process for producing polyether siloxanes, said process comprising:
- reacting
- a) one or more unsaturated polyethers with
- b) one or more SiH-functional siloxanes in the presence of
- c) Pt(0) compounds, and
- d) one or more tertiary amines of general formula 1
- where
- R1 =R2 or independently at each occurrence is H or a C2 to C14 alkyl radical, and
- R2 =C1 to C14 alkyl radicals bearing at least one OH group.
5 more elements
Dependencies are inferred from the claim text.