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US 12,091,514 B2Granted
(Hydroxyalkyl)aminophenol polymers and methods of use
AssigneeEcolab USA Inc.
InventorsAshish Dhawan, Carter M. Silvernail
Life of this patent
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Abstract
Disclosed herein are polymers formed by the condensation of bis(hydroxycarbyl)-aminophenolic compounds with aldehydes. The condensation polymers include one or more repeat units having bis(hydroxycarbyl)amino functionality. The polymers are useful as antifoulants, antipolymerants, rheology modifiers, dehazers, polymerization retardants, surfactants, or a combination of these in one or more industrial process streams.
Claims19
A polymer comprising a repeat unit having the structure A and/or a repeat unit having the structure B:
- wherein R is C1-C24 linear, branched, or cyclic alkyl, aryl, or aralkyl.
Dependencies are inferred from the claim text.