Silicone foam control agent

Details Silicone foam control agent Silicone foam control agent

C - Chemistry, Metallurgy

11

D

C11D 3/37 (2006.01) C08L 83/04 (2006.01)

Patent

CA 2074060

Abstract of the Disclosure A method for preparing a silicone foam control agent comp- rises the steps of (A) mixing a vinyl end-blocked polydiorgano- siloxane, a volatile, low viscosity organohydrogensiloxane, with 3 silicon-bonded hydrogen atoms and a solvent, (B) reacting said mixture with a noble metal catalyst to make a branched organo- polysiloxane and (C) adding to the mixture a finely divided hydrophobic particulate material. The agent works better than prior art branched fluid foam control agents.

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