| 摘要 |
PCT No. PCT/EP90/01382 Sec. 371 Date Feb. 25, 1992 Sec. 102(e) Date Feb. 25, 1992 PCT Filed Aug. 21, 1990 PCT Pub. No. WO91/03538 PCT Pub. Date Mar. 21, 1991.A foam-inhibiting aqueous concentrate, stable in alkaline compositions, contains (a) about 5 to about 30% by weight of alkyl glucoside based on C6-C12 fatty alcohols having a degree of glucosidation of about 1 to about 2, (b) about 5 to about 70% by weight of end-capped polyethylene glycol ether compound corresponding to formula I R1O-(CH2CH2O)n-R2(I) wherein the radical R1O is derived from 2-branched, even-numbered alkanols containing from 16 to 20 carbon atoms, R2 is an alkyl radical containing 4 to 8 carbon atoms, and n is a number of about 5 to about 9, (c) about 5 to about 70% by weight of non-end-capped polyethylene glycol ether compound corresponding to formula II R5O-(CH2CH2O)2-H(II) wherein the radical R5O is derived from 2-branched even-numbered alkanols containing from 12 to 20 carbon atoms, and z is a number of about 2 to about 5.
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