ALCOHOL ALKOXYLATES AS LOW-FOAM OR FOAM-ABSORBING SURFACES

摘要

Alcohol alkoxylates of the formula (I)whereR1 is an at least singly branched C4-22-alkylR2 is C3-4-alkylR5 is C1-4-alkylR6 is methyl or ethyln is an average value from 1 to 50m is an average value from 0 to 20r is an average value from 0 to 50s is an average value from 0 to 50,where m is at least 0.5 if R5 is methyl or ethyl or r is 0, or alcohol alkoxylates of the formula (II)whereR3 is branched or unbranched C4-22-alkylR4 is C3-4-alkylp is an average value of from 1 to 50q is an average value of from 0.5 to 20are used as low-foam or foam-suppressing surfactants.