Foam control agents

Details Foam control agents Foam control agents

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 2098954

Abstract of the Invention A foam control agent which is free from hydrocarbon oils and comprises (A) an organopolysiloxane with 0 to 60% of units (i) RaSiO Image wherein R denotes a C8 hydrocarbon group and a is 0-3, and 40 to 100% of units (ii) RbR?SiO Image wherein R" is -Zz-R' with R' being an C9-35 alkyl, Z is a linking group and z is 0 or 1, b 0, 1 or 2, c 1 or 2 and b+c 1, 2 or 3, provided more than 70% by weight of the carbon content of (A) is due to R", (B) a finely divided hydrophobic particulate material and (C) optionally a MQ organosilicon resin. The agents give improved performance and stability e.g in detergent powders.

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