Patent ID: 6746997
Filing Date: 2004-06-08
Classification: C11D

Abstract:
A surfactant blend comprising an alkylaryl-O-ethoxylate having a relatively low ethoxy content and an alkylaryl-O-ethoxylate having a relatively high ethoxy content together with their respective sulfates wherein the alkyl portion of each ethoxylate and each sulfate is independently selected from the group consisting of alkyls of 6 to 12 carbon atoms; the aryl portion of each ethoxylate and each sulfate is independently selected from the group consisting of aryls having 6-10 carbon atoms; the low ethoxylate component and its sulfate independently have an average of from about 1 to about 6 ethoxy groups per molecule; and the high ethoxylate component and its sulfate independently have an average of from about 7 to about 14 ethoxy groups per molecule; wherein sum of the high ethoxylate component and its sulfate is present in a weight ratio of about 90:10 to 10:90 relative to the sum of the low ethoxylate component and its sulfate.