Patent ID: 11905604
Assignee: HINDUSTAN PETROLEUM CORPORATION LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. The corrosion inhibitor formulation as claimed in claim 1, wherein the at least one quaternary ammonium salt is a combination of alkyldimethylbenzylammonium chloride and a compound selected from the group consisting of Formula I,, , and Formula II,, , wherein Y is selected from O, —NH, or —NR3;
X is selected from O or S;
A is selected from fluoro, chloro, bromo, iodo, hexafluorophosphate, OH−, HCO3−, CO32−, R4COO−, R4SO4−, or R4SO3−, wherein R4 is selected from the group consisting of hydrogen, C1-6 alkyl, and C5-10 aryl, wherein C1-6 alkyl, and C5-10 aryl are optionally substituted with hydroxyl, nitro, halogen, alkyl, aryl, or —COOR4;
R1 is C1-20 alkyl, C2-20 alkenyl, C2-20 alkynyl, and C5-6 aryl, wherein C1-20 alkyl, C2-20 alkenyl, C2-20 alkynyl, and C5-6 aryl are optionally substituted with C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, and C5-6 aryl; and n and m are independently 5 to 10; and
R2 and R3 are independently C1-6 alkyl.