PROCESS TO IMPROVE RETENTION OF LOADS AND PULP FINES AND INCREASE THE REASON FOR FOOD DEHYDRATION IN THE MANUFACTURE OF PAPER, PRODUCT SO MANUFACTURED AND ADDITIVE COMPOSITION USED IN THE SAME

摘要

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-methylpropanesulfonic acid and a water-soluble polymer selected from the group consisting of polyacrylamide and acrylamide copolymers.