Silicone foam control composition

Details Silicone foam control composition Silicone foam control composition

1990-02-12

1995-01-10

Stoll, Robert L.

Compositions

Preservative agents

Anti-corrosion

252358, B01D 1904, C08K 336

Patent

active

053804643

ABSTRACT:
There is disclosed a foam control composition comprising (I) a silicone defoamer reaction product and (II) a silicone glycol copolymer, which composition is particularly effective in defoaming highly acidic or highly basic aqueous systems. Component (I) is prepared by heating a mixture of (i) a polyorganosiloxane fluid, (ii) a resinous silicon compound, (iii) a finely divided filler and (iv) a catalytic amount of a compound for promoting the reaction of the other components at a temperature of 50.degree. C. to 300.degree. C.

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Derwent Abstract, 85-239868/39.

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