US 12,270,005 B2
Lubricant containing polyphosphate additives
Kenneth D. Nelson, Napa, CA (US); and Jonathan A. Moore, San Francisco, CA (US)
Assigned to CHEVRON ORONITE COMPANY LLC, San Ramon, CA (US)
Appl. No. 18/264,000
Filed by CHEVRON ORONITE COMPANY LLC, San Ramon, CA (US)
PCT Filed Mar. 16, 2022, PCT No. PCT/IB2022/052373
§ 371(c)(1), (2) Date Aug. 2, 2023,
PCT Pub. No. WO2022/195502, PCT Pub. Date Sep. 22, 2022.
Claims priority of provisional application 63/162,418, filed on Mar. 17, 2021.
Prior Publication US 2024/0110122 A1, Apr. 4, 2024
Int. Cl. C10M 169/04 (2006.01); C10M 105/02 (2006.01); C10M 125/24 (2006.01); C10M 129/24 (2006.01); C10M 137/10 (2006.01); C10M 141/10 (2006.01); C10N 10/04 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01); C10N 30/06 (2006.01); C10N 40/25 (2006.01); C10N 50/00 (2006.01)
CPC C10M 169/04 (2013.01) [C10M 105/02 (2013.01); C10M 125/24 (2013.01); C10M 129/24 (2013.01); C10M 137/10 (2013.01); C10M 141/10 (2013.01); C10M 2201/085 (2013.01); C10M 2203/04 (2013.01); C10M 2207/08 (2013.01); C10M 2223/045 (2013.01); C10M 2290/00 (2013.01); C10N 2010/04 (2013.01); C10N 2020/02 (2013.01); C10N 2030/06 (2013.01); C10N 2030/52 (2020.05); C10N 2040/25 (2013.01); C10N 2050/00 (2013.01)] 15 Claims
 
1. A lubricating oil composition comprising:
a major amount of a base oil of lubricating viscosity; and
a polyphosphate-based dispersion comprising an ammonium polyphosphate and a dispersing agent, wherein the ammonium polyphosphate has the following structure:

OG Complex Work Unit Chemistry
wherein R is independently a hydrogen or a hydrocarbyl group, n is an integer ranging from 1 to 1000, and m is n+2.