US 12,031,058 B2
Corrosion inhibition compositions and associated methods for inhibiting corrosion on metallic substrates
Priyanka G. Dhirde, Bangalore (IN); Waynie M. Schuette, Troy, IL (US); and Murali Krishna Panchangam, Bangalore (IN)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Jul. 2, 2021, as Appl. No. 17/366,242.
Prior Publication US 2023/0052367 A1, Feb. 16, 2023
Int. Cl. C09D 5/08 (2006.01); C08K 5/405 (2006.01); C09D 187/00 (2006.01); C23F 11/16 (2006.01)
CPC C09D 5/08 (2013.01) [C08K 5/405 (2013.01); C09D 187/00 (2013.01); C23F 11/16 (2013.01)] 20 Claims
 
1. A corrosion inhibition composition comprising:
a carrier, the carrier comprising a sol gel-based polymer; and
a Schiff base in admixture with the carrier,
wherein the Schiff base comprises a thiosemicarbazone, or
wherein the Schiff base comprises the following structure:

OG Complex Work Unit Chemistry
wherein the R2 is one of an alkyl, an aryl/substituted aryl, and a heterocyclic/substituted heterocyclic group, wherein the R is one of a hydrogen, an aryl/substituted aryl, and an alkyl group, and wherein the R1 is one of a hydrogen, an aryl/substituted aryl, and an alkyl group.