Compositions useful as flocculating agents comprising a hydrophilic cationic polymer and an anionic surfactant
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United States of America Patent
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Jul 14, 1992
Issued Date -
N/A
app pub date -
Mar 22, 1989
filing date -
Feb 1, 1983
priority date (Note) -
Expired
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Abstract
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-immeriscible 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.
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