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US 12,709,687 B2Granted
Corrosion-resistant articles and methods for making such
AssigneeSaudi Arabian Oil Company
InventorsTalal Y. Zahrani, Muthukumar Nagu, Muhammed Imran Ul-Haq, Nayef M. Alanazi
Life of this patent
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Abstract
Described herein are corrosion-resistant substrates and methods of producing a corrosion-resistant substrates. In one or more embodiments, a corrosion-resistant substrate may include a substrate including a first surface and a corrosion-resistant film positioned on at least a portion of the first surface of the substrate. The corrosion-resistant film may be solid. In embodiments, the film may include a 1-(2-hydroxyalkyl)pyridinium compound.
Claims15
A corrosion-resistant substrate comprising:
- a substrate comprising a first surface;
- and
- a corrosion-resistant film positioned on at least a portion of the first surface of the substrate, wherein the corrosion-resistant film is solid, and wherein the corrosion-resistant film comprises a 1-(2-hydroxyalkyl) pyridinium compound having a general formula:
- wherein:
- R1 is a C1-C18 alkyl group, a C1-C18 hydroxyl alkyl group, a C1-C18 alkenyl group, a C1-C18 internal alkynl group, a C1-C18 acryl group, or a C1-C18 cycloalkyl group;
- and
- RA, RB, RC, RD, and RE are each independently chosen from hydrogen, a C1-C18 alkyl group, a C1-C18 hydroxyl alkyl group, a C1-C18 alkenyl group, a C1-C18 alkynl group, a C1-C18 acryl group, or a C1-C18 cycloalkyl group.
4 more elements
The method of 12, wherein:
- R1 is —(CH2)9CH3 or —(CH2)11CH3;
- RA, RB, RC, RD, and RE are hydrogen;
- and
- the 1-(2-hydroxyalkyl) pyridinium compound comprises from 20 wt % to 30 wt % of the corrosion inhibitor solution.
1 more element
Dependencies are inferred from the claim text.