US 12,215,293 B1
Melamine-based compounds for lubricating compositions
Sheng Jiang, Glen Allen, VA (US); and Kearsley Dillon, Richmond, VA (US)
Assigned to Afton Chemical Corporation, Richmond, VA (US)
Filed by Afton Chemical Corporation, Richmond, VA (US)
Filed on Jan. 9, 2024, as Appl. No. 18/408,090.
Int. Cl. C10M 133/42 (2006.01)
CPC C10M 133/42 (2013.01) [C10M 2215/08 (2013.01); C10M 2215/222 (2013.01); C10M 2215/26 (2013.01)] 21 Claims
 
1. A corrosion inhibitor in the form of an oil-soluble hydrocarbyl-substituted melamine derivative having the structure of Formula I

OG Complex Work Unit Chemistry
wherein each of R1, R2, and R3 is, independently, —NH2, a hydrocarbyl-substituted succinimide group, or a hydrocarbyl-substituted dicarboxylic acid-amide group, and wherein one or two of R1, R2, and R3 is, independently, either the hydrocarbyl-substituted succinimide group or the hydrocarbyl-substituted dicarboxylic acid-amide group and the remaining R1, R2, and R3 is, independently, either the —NH2 or the hydrocarbyl-substituted dicarboxylic acid-amide.