Alkyl polyethyleneglycol ethers as foam-suppressing...

Details Alkyl polyethyleneglycol ethers as foam-suppressing... Alkyl polyethyleneglycol ethers as foam-suppressing...

C - Chemistry, Metallurgy

07

C

C07C 43/11 (2006.01) C07C 43/15 (2006.01) C07C 43/184 (2006.01) C11D 1/72 (2006.01) C11D 3/00 (2006.01)

Patent

CA 2070415

- 17 - Abstract Alkyl Polyethyleneglycol ethers as foam-suppressing additives for cleaning agents The invention relates to the use of terminally blocked alkyl polyethyleneglycol ethers of the formula R1-O-(CH2CH2O)n-R2 (I) in which R1 represents a straight-chain, branched or cyclic alkyl radical or alkenyl radical with 6 to 18 carbon atoms, R2 represents an alkyl radical with 4 to 8 carbon atoms and n represents a number between 3 and 6, which are produced from ethylene oxide and a fatty alcohol, or fatty alcohol mixtures, containing R1 followed by etherification with an alkyl halide containing R2 by ethoxylation of the fatty alcohol in the presence of calcined hydrotalcites as catalyst, as foam-suppressing additives for low-foaming cleaning agents.

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