Patent ID: 9321908
Filing Date: 2016-04-26
CPC Classification: C08J,C08L

Claim Text:
1. A method for dispersing a dry cellulose ether formulation in an aqueous solution without forming lumps, comprising the steps of: (a) feeding the dry cellulose ether formulation to a feeder at an adjustable rate; (b) wetting the dry cellulose ether formulation with a hydration agent; (c) mixing the wetted cellulose ether formulation with additional hydration agent in a mixer; and (d) forming a uniform and clear solution, wherein the dry cellulose ether formulation comprises (i) a cellulose ether cross-linked with a cross-linker having a first reactive moiety and a second reactive moiety, and (ii) a solid water soluble acid, wherein the solid water soluble acid is present in the dry cellulose ether formulation in an amount from about 0.1 to about 20% by weight of the dry cellulose ether formulation.