D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/45 (2006.01) C08F 220/56 (2006.01) D21C 5/02 (2006.01) D21C 9/08 (2006.01) D21H 21/02 (2006.01)
Patent
CA 2135960
A process for treating a re-pulped coated broke slurry comprising the addition of a water-soluble polymer dispersion, the water-soluble polymer is formed by polymerizing a water-soluble mixture which comprises: (a) a first cationic monomer represented by the following formula (I): (see formula I) and/or a second cationic monomer represented by the following general formula (II): (see formula II) and (b) (meth)acrylamide in an aqueous solution of a polyvalent anion salt, wherein the polymerization is carried out in the presence of either an organic high-molecular multivalent cation comprising a water-soluble polymer containing at least one monomer of formula (II) or an alkyl ester of acrylic acid.
Nalco Chemical Company
Smart & Biggar
LandOfFree
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