| 摘要 |
<p>A cationic polymer composition suitable for use as a flocculating agent and as a retention aid in paper making consists of a mixture of a) a hydrophilic cationic polymer, b) an anionic surfactant, optionally c) a water-immiscible oil in which the polymer a) is insoluble, and, if c) is present, optionally d) a lipophilic non-ionic surfactant, optionally e) water and optionally f) an oil-miscible polar solvent. The compositions may be prepared by water-in-oil emulsion polymerisation and are readily diluted with water. Examples of vinyl monomers used to produce such cationic polymers are:- <IMAGE></p> |
