Silicone foam control compositions

Details Silicone foam control compositions Silicone foam control compositions

2003-08-01

2009-12-15

Peng, Kuo-Liang (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C528S043000

Reexamination Certificate

active

07632890

ABSTRACT:
A foam control composition comprises a polydiorganosiloxane fluid comprising units of the formulawhere each group R, which may be the same or different, is selected from an alkyl group having 1 to 36 carbon atoms or an aryl group or aralkyl group having up to 36 carbon atoms, the mean number of carbon atoms in the groups R being at least 1.3, and an additive composition of melting point 35 to 100° C. comprising a substantially non-polar organic material, preferably a polyol substantially fully esterified by carboxylate groups each having 7 to 36 carbon atoms.

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