| 摘要 |
The present invention relates to the use and application of a water-soluble or water-dispersible copolymer comprising: a) at least a monomer compound of general formula i: in which R<SUB>1 </SUB>is a hydrogen atom, a methyl or ethyl group; R<SUB>2</SUB>, R<SUB>3</SUB>, R<SUB>4</SUB>, R<SUB>5 </SUB>and R<SUB>6</SUB>, which are identical or different, are linear or branched C<SUB>1</SUB>-C<SUB>6</SUB>, alkyl, hydroxyalkyl or aminoalkyl groups; m is an integer from 0 to 10; n is an integer from 1 to 6; Z represents a -C(O)O- or -C(O)NH- group or an oxygen atom; A represents a (CH<SUB>2</SUB>)<SUB>p </SUB>group, p being an integer from 1 to 6; B represents a linear or branched C<SUB>2</SUB>-C<SUB>12</SUB>, polymethylene chain optionally interrupted by one or more heteroatoms or heterogroups, and optionally substituted by one or more hydroxyl or amino groups; X, which are identical or different, represent counterions; and (b) at least one hydrophilic monomer carrying a functional acidic group which is copolymerizable with (a) and which is capable of being ionized in the application medium; (c) optionally at least one monomer compound with ethylenic unsaturation with a neutral charge which is copolymerizable with (a) and (b), preferably a hydrophilic monomer compound with ethylenic unsaturation with a neutral charge, carrying one or more hydrophilic groups, which is copolymerizable with (a) and (b). Said polymer is a particularly good agglomerating agent and can preferentially be used in cleaning operations.
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