Use of copolymers of 2-acrylamido-2-methylpropane sulfonic...

Details Use of copolymers of 2-acrylamido-2-methylpropane sulfonic... Use of copolymers of 2-acrylamido-2-methylpropane sulfonic...

D - Textiles, Paper

21

H

9/59

D21H 17/42 (2006.01)

Patent

CA 1223107

USE OF COPOLYMERS OF 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID FOR IMPROVING RETENTION AND DEWATERING IN THE MANUFACTURE OF PAPER Abstract of the Disclosure A process for improving retention of fillers and pulp fines and increasing rate of dewatering of furnish in the manufacture of paper, by addition thereto of a water-soluble copolymer containing from about 2.5 to about 35 mole percent repeating units derived from 2-acrylamido-2-methylpropane- sulfonic acid and a water-soluble polymer selected from the group consisting of polyacrylamide and acrylamide copolymers.

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