| 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 1 is a hydrogen atom, a methyl or ethyl group;
R 2 , R 3 , R 4 , R 5 and R 6 , which are identical or different, are linear or branched C 1 -C 6 , 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 2 ) p group, p being an integer from 1 to 6;
B represents a linear or branched C 2 -C 12 , 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. |
