Patent ID: 6642351
Filing Date: 2003-11-04
Classification: C08J

Abstract:
A method for improving the dispersal of a polymer composition in water, comprising (a) providing a dry polymer composition comprised of a plurality of polyacrylamide particles, wherein at least about 90% by weight of said polyacrylamide particles have a particle size of about 300 microns or less, (b) providing a stream of moving water; (c) separating said polyacrylamide particles from each other to form an airborne stream of separated polyacrylamide particles, and (d) contacting said airborne stream of separated polyacrylamide particles at a rate of about 10 grams per minute or greater with said stream of moving water, to form an aqueous composition comprised of about 0.01% or greater of dispersed polymer, by weight based on total weight of said aqueous composition, wherein said polymer composition or said dispersed polymer has a weight average molecular weight of about 100,000 or greater, and wherein said separating and said contacting are effective so that greater than about 90% by weight of said aqueous composition passes through a 50 mesh screen within about 15 minutes after said aqueous composition is formed.