US 12,227,670 B2
Corrosion inhibitor solutions and corrosion-resistant substrates that include pyridinium hydroxyl alkyl ether compounds and methods of making the same
Muhammad Imran Ul-haq, Dhahran (SA); Nayef M. Alanazi, Dhahran (SA); Qasim Saleem, Khobar (SA); and Turki M. AI-Abeedi, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on May 11, 2022, as Appl. No. 17/741,960.
Prior Publication US 2023/0365814 A1, Nov. 16, 2023
Int. Cl. C09D 5/08 (2006.01); C07D 213/04 (2006.01); C08K 5/17 (2006.01); C08K 5/3432 (2006.01); C09D 7/20 (2018.01); C09D 7/45 (2018.01); C09D 7/63 (2018.01); C23F 11/14 (2006.01)
CPC C09D 5/086 (2013.01) [C07D 213/04 (2013.01); C09D 7/20 (2018.01); C09D 7/45 (2018.01); C09D 7/63 (2018.01); C23F 11/142 (2013.01); C08K 5/17 (2013.01); C08K 5/3432 (2013.01)] 25 Claims
OG exemplary drawing
 
1. 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 pyridinium hydroxyl alkyl ether compound having a general formula:

OG Complex Work Unit Chemistry
wherein R1 is a C8-C12 alkyl group, a C1-C18 hydroxyl alkyl group, a C1-C18 alkenyl group, a C1-C18 alkynl group, or a C1-C18 cycloalkyl group; and
wherein 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, a C1-C18 cycloalkyl group, or a C1-C18 functional alkyl group.