Stable suspension of hydrocolloids
AssigneePharmacia Corporation
InventorsHarold Dean Dial, Crawford Bryan Skaggs, Walter Gregory Rakitsky
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Abstract
The present invention comprises a stable hydrocolloid composition in which a hydrocolloid, preferably welan gum, is uniformly dispersed in a superplasticizer such as sulfonated naphthalene, sulfonated melamine, modified lignosulfate, their derivatives and mixtures thereof. This is then dispersed in a rheological control agent which is a microbially-produced cellulose fiber composition. The welan gum is rapidly hydratable and useful as a stabilizing additive in many cement and drilling fluid applications, insulation fluids and de-icer compositions.
Claims11
A uniform suspension of a water soluble polymer and a superplasticizer stabilized by a rheological control agent comprising water insoluble microbially derived cellulose fibers.
Dependencies are inferred from the claim text.