Method of controlling foam

Details Method of controlling foam Method of controlling foam

B - Operations, Transporting

01

D

B01D 19/04 (2006.01) C11D 3/00 (2006.01) C11D 3/16 (2006.01) C11D 3/37 (2006.01)

Patent

CA 2098953

Abstract of the Invention Foam in an environment with free surface turbulence is controlled with a foam control agent which comprises (A) 5 to 90 parts by weight of an organopolysiloxane having at least 40% siloxane units with a substituent -Zz-R', wherein R' is a C9-35 alkyl group, Z is a linking group with silicon and z is 0 or 1, provided more than 70% by weight of its carbon content is due to the groups -Zz-R', (B) 0.1 to 30 parts by weight of a finely divided hydrophobic particulate material, (C) 5 to 95 parts by weight of a hydrocarbon oil and (D) 0 to 20 parts by weight of an organosilicon MQ resin.

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