US 12,270,003 B2
Additives with high sulfurization for lubricating oil compositions
Mitchell Latimer, Montpellier, VA (US); and Jason Bell, Powhatan, VA (US)
Assigned to Afton Chemical Corporation, Richmond, VA (US)
Filed by Afton Chemical Corporation, Richmond, VA (US)
Filed on Oct. 25, 2023, as Appl. No. 18/494,466.
Application 18/494,466 is a continuation in part of application No. PCT/US2023/020157, filed on Apr. 27, 2023.
Claims priority of provisional application 63/478,724, filed on Jan. 6, 2023.
Claims priority of provisional application 63/432,752, filed on Dec. 15, 2022.
Claims priority of provisional application 63/432,757, filed on Dec. 15, 2022.
Claims priority of provisional application 63/335,474, filed on Apr. 27, 2022.
Prior Publication US 2024/0093116 A1, Mar. 21, 2024
Int. Cl. C10M 135/02 (2006.01); C10M 169/04 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 40/25 (2006.01)
CPC C10M 135/02 (2013.01) [C10M 169/04 (2013.01); C10M 2219/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/04 (2013.01); C10N 2040/252 (2020.05); C10N 2040/255 (2020.05)] 34 Claims
OG exemplary drawing
 
1. A process for preparing a sulfurized compound for lubricating compositions to achieve a high sulfurization ratio of the sulfurized compound to residual unsulfurized compounds, the process comprising:
sulfurizing an alkyl phenol with a sulfur chloride blend to provide a sulfurized alkyl phenol, wherein a mol ratio of the sulfur chloride blend to the alkyl phenol is about 0.6:1 to about 0.75:1; and
wherein the sulfur chloride blend includes sulfur monochloride and sulfur dichloride and wherein the sulfur chloride blend is about 40 to about 75 weight percent of sulfur dichloride.