Organopolysiloxanes for defoaming aqueous systems

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 3/03 (2006.01) B01D 19/04 (2006.01) C08G 77/46 (2006.01) C08K 5/5419 (2006.01)

Patent

CA 2428359

The invention relates to the use of water-insoluble organopolysiloxane derivatives of the general formula (I) (see formula I) in which the radicals R1 are alkyl radicals having 1 to 4 carbon atoms or aryl radicals, but at least 80% of the radicals R1 are methyl radicals, and R2 at least once in the molecule has the definition (a) (see formula II) for defoaming aqueous media, especially printing inks and paints.

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