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US 11,692,096 B2Granted
Composition and method
AssigneeLankem Ltd.
InventorsJohn Adamson, Samuel Thomas Adamson
Life of this patent
Estimating the term…
Abstract
A surfactant comprising the reaction product of: (a) an epoxidised carboxylic acid ester; and (b) a compound including at least one reactive alcohol and/or amino functional group.
Claims16
A method of preparing a surfactant, the method comprising:
- step (i) reacting:
- (a) an epoxidised carboxylic acid ester;
- and
- (b) a compound of formula (I):
- wherein n is a positive integer;
- each X is independently O or NH;
- each group R4 is independently an optionally substituted alkylene, alkenylene or arylene group;
- and R5 is hydrogen or an optionally substituted alkyl, alkenyl, aryl, alkaryl or aralkyl group;
- and
- step (ii) reacting the reaction product of step (i) with (c) a derivatising agent comprising an alkoxy polyalkylene glycol, an alkoxy polyalkylene glycol amine, an alkyl amine, a dialkyl amine, an alkanolamine, a dialkanolamine or a sulfonating agent.
7 more elements
Dependencies are inferred from the claim text.