Patent Number: 6,309,455

Title: Stable suspension of hydrocolloids and superplasticizer

Abstract: The present invention comprises a stable hydrocolloid composition in which preferably welan gum is uniformly dispersed in a superplasticizer solution such as sulfonated naphthalene, sulfonated melamine, modified lignosulfate, their derivatives and mixtures thereof. The solution is wet milled to form an extremely fine particle size distribution of the gum. The composition is rapidly hydratable and useful as a stabilizing additive in many cement and drilling fluid applications.

Inventors: Skaggs; Bryan (San Diego, CA), Dial; Harold (El Cajon, CA), Rakitsky; Walter (San Diego, CA)

Assignee: CP Kelco U.S., Inc.

International Classification: C04B 40/00 (20060101); C09K 8/22 (20060101); C09K 8/04 (20060101); C09K 8/42 (20060101); C09K 8/46 (20060101); C09K 8/02 (20060101); C09K 8/20 (20060101); C09K 007/02 (); C09D 101/28 (); C09D 105/00 (); C04B 024/24 (); C04B 024/38 ()

Expiration Date: 10/30/2018