Glycol antifreeze mixtures

C - Chemistry – Metallurgy – 09 – K

Patent

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C09K 5/00 (2006.01) B01D 19/04 (2006.01) C09K 5/20 (2006.01)

Patent

CA 1078161

Abstract of the Disclosure A glycol-based antifreeze formulation containing as a defoaming agent, from 0.001% to about 1.0% by weight of a mixture containing a compound of the formula Image wherein R is an alkyl, alkoxyalkyl, hydroxyalkyl, or dihydroxyalkyl group having from 1 to 6 carbon atoms, R1 is hydrogen, methyl or ethyl, R2 is an alkyl group having 1 to 8 carbon atoms, p is an integer from 1 to 20, and n is an integer from 1 to 14; and a compound of the formula RO-(C6H10O5)p-H wherein R and p are as defined above.

293937

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