Surfactant-soluble cellulose derivatives
AssigneeHercules Incorporated
InventorLeo M. Landoll
Life of this patent
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Abstract
Cellulose ethers containing an amount of hydroxypropyl, hydroxyethyl, or methyl radicals such that they are normally water soluble are further modified with C.sub.12 to C.sub.24 hydrocarbon radicals to a level at which they are water insoluble. These modified ethers are soluble in surfactants and effect substantial viscosity increases in solutions of surfactants. They also are highly effective emulsifiers in aqueous systems.
Claims5
A cellulose ether having a sufficient degree of nonionic substitution selected from the class consisting of methyl, hydroxyethyl, and hydroxypropyl radicals to cause it to be normally soluble in water and which is further substituted with a long chain alkyl radical having 10 to 24 carbon atoms in an amount between that which renders said ether water-insoluble and about 8% by weight based on the total weight of the modified cellulose ether.
Dependencies are inferred from the claim text.