Silicone based defoamer

Details Silicone based defoamer Silicone based defoamer

B - Operations, Transporting

01

D

B01D 19/04 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2351122

This invention relates to a defoamer composition comprising (a) hydrophobic silica; (b) a linear polysiloxane having end-blocked polyoxypropylene groups; (c) a polysiloxane having a pendant polyoxypropylene group; (d) a nonionic surfactant; and preferably (e) an inert diluent. The defoamer compositions are used in paints and coatings.

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