Polyamine-polyesters as corrosion inhibition
AssigneeEcolab USA Inc.
InventorsAshish Dhawan, Jeremy Moloney, Carter Martin Silvernail
Life of this patent
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Abstract
Compounds, compositions and methods are provided for reducing, inhibiting, or preventing corrosion of a surface, using a polyester polyamine compound. The polyester polyamine compound having a structure corresponding to Formula 1 or 2, or a salt thereof: wherein R1 is independently alkylene; R2 is independently hydrogen or —COR4; R3 is independently alkyl, alkenyl, aryl, or alkaryl; R4 is independently alkyl or alkenyl; R10 and R11 are each independently hydrogen, alkyl, or alkaryl; m is an integer from 1 to 10; n is an integer from 3 to 10; and wherein at least one R2 is —COR4.
Claims20
A polyester polyamine compound, the polyester polyamine compound corresponding to the structure of Formula 2, or a salt thereof:
- wherein
- R1 is independently alkylene;
- R2 is independently hydrogen or —COR4;
- R3 is independently alkyl, alkenyl, aryl, or alkaryl;
- R4 is independently alkyl or alkenyl;
- R10 and R11 are each independently hydrogen, alkyl, or alkaryl;
- m is an integer from 1 to 10;
- n is an integer from 3 to 10;
- and
- wherein at least one R2 is —COR4.
A corrosion inhibitor composition, wherein the composition comprises a component and a polyester polyamine compound corresponding to the structure of Formula 1 or 2, or a salt thereof:
- wherein
- R1 is independently alkylene;
- R2 is independently hydrogen or —COR4;
- R3 is independently alkyl, alkenyl, aryl, or alkaryl;
- R4 is independently alkyl or alkenyl;
- R10 and R11 are each independently hydrogen, alkyl, or alkaryl;
- m is an integer from 1 to 10;
- n is an integer from 3 to 10;
- and
- wherein at least one R2 is —COR4.
Dependencies are inferred from the claim text.