Patent ID: 6387962
Filing Date: 2002-05-14
Classification: B01D,C08G,C09D

Abstract:
A process for reducing or preventing foam in an aqueous system comprising adding to the aqueous system from about 0.001% to about 10.0% by weight of a composition which is the product of the process which comprises reacting epichlorohydrin and a compound of the formula IIR3(EO)n(PO)mOHâ€ƒâ€ƒ(II) wherein R3 is a saturated or unsaturated organic group having from 4 to 22 carbon atoms; n is a number from 0 to 50 and m is a number from 0 to 50; wherein the mole ratio of epichlorohydrin to (II) is from about 0.60/1 to about 2/1.