Aqueous suspension of a cellulose ether, method for the production thereof, and a dry blend

Abstract

This invention relates to a suspension of a water-soluble, nonionic cellulose ether having a fairly low content of an electrolytic salt exhibiting a high stability and a low viscosity. The suspension having a pH-value of below 8.0, contains 10-30% by weight of a water-soluble, nonionic cellulose ether, and 10-22% by weight of an electrolytic salt, wherein the electrolytic salt contains a) 10-90% by weight of a salt of polyphosphate having 3-12 phosphate groups, and b) 10-90% by weight of a salt selected from the group consisting of ortophosphate, pyrophosphate, sulphate, carbonate and a mixture thereof. The suspension is advantageously produced by adding a dry blend containing the water-soluble cellulose ether in cross-linked form and the electrolytic salt to water.

Dependencies are inferred from the claim text.