Patent ID: 6831108
Filing Date: 2004-12-14
Classification: A61K,A61Q,B01F,C05F,C05G,C09K,C11D,Y10S

Abstract:
A viscoelastic fluid comprising:(1) an aqueous medium; (2) an amphoteric surfactant; and (3) a member selected from the group consisting of organic acids, organic acid salts, inorganic salts, and combination of one or more organic acids or organic acid salts with one or more inorganic salts; wherein the fluid exhibits the property of viscoelasticity, and wherein the amphoteric surfactant is represented by formula (VI): wherein R1 represents alkyl, alkenyl, alkylarylalkylene, alkenylarylalkylene, alkylaminoalkylene, alkenylaminoalkylene, alkylamidoalkylene, or alkenylamidoalkylene, wherein each of the alkyl groups have from about 14 to about 24 carbon atoms and may be branched or straight chained and saturated or unsaturated, and wherein the alkylene groups have from about 1 to about 6 carbon atoms,R2 is selected from the group of alkyl, alkenyl, arylalkyl, hydroxyalkyl, carboxyalkyl, and hydroxyalkyl polyoxyalkylene, each having from about 1 to about 10 carbon atoms, andR4 is a hydrocarbyl radical with chain length of about 1 to about 4.