| 摘要 |
The invention relates to the use of copolymers which can be obtained by the polymerization of monomers (A) and (B), (A) being a monomer of formula (I), wherein A represents a C2 to C4 alkylene group, B represents a C2 to C4 alkylene group different from A, R represents hydrogen or methyl, m is a number from 1 to 500, and n is a number from 1 to 500, and (B) being an ethylenically unsaturated monomer which contains an aliphatic hydrocarbon group, for demulsifying oil/water emulsions in amounts of 0.0001 to 5% by weight, based on the oil content of the emulsion to be demulsified. |
