Preparing ammonium polyacrylates
Abstract
Abstract POLYACRYLATES ARE PREPARED IN AQUEOUS SOLUTION UNDER SPECIALLY CONTROLLED REACTION CONDITIONS TO PRODUCE EFFICIENT FLOCCULANTS. AMMONIUM ACRYLATE TO POLYMERIZED AT A MONOMER CONCENTRATION WITHIN THE RANGE FROM ABOUT 10 WEIGHT PERCENT OF THE POLYMERIZATION SYSTEM UP TO THE MONOMER SATURATION LEVEL, IN THE PRESENCE OF AT LEAST 0.1 WEIGHT PERCENT OF AMMONIUM HYDROXIDE. THE UPPER LIMIT ON THE AMOUNT OF HYDROXIDE EMPLOYED WILL RANGE DOWNWARDLY FROM ABOUT 15 WEIGHT PERCENT TO APPROXIMATELY 5 WEIGHT PERCENT FOR MONOMER CONCENTRATIONS FROM 10 TO 40 WEIGHT PERCENT RESPECTIVELY. FURTHER IMPROVEMENT IN POLYMER PROPERTIES IS ACHIEVED BY THE INCORPORATION OF AT LEAST ABOUT 1 WEIGHT PERCENT, BASED ON THE WEIGHT OF POLYMERIZATION SYSTEM, OF AN ALKALI METAL SALT.
Inventors
- 👤 Henry Volk
- 👤 Percy Jay Hamlin
Bibliographic Details
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