US 12,480,067 B2
Lubricating oil compositions
Linda Wilson, Abingdon (GB); Abigail Perry, Abingdon (GB); Robert Stallwood, Abingdon (GB); James Lee Head, Abingdon (GB); Barry Corber, Abingdon (GB); Gregory Killian, Abingdon (GB); Viral Bobby Patel, Abingdon (GB); Stuart Alexander Taylor, Abingdon (GB); Chloe Allen, Abingdon (GB); and Allyson Ruth Doyle, Abingdon (GB)
Assigned to Infineum International Limited, Milton Hill (GB)
Filed by Infineum International Limited, Abingdon (GB)
Filed on Sep. 26, 2023, as Appl. No. 18/475,160.
Prior Publication US 2024/0141250 A1, May 2, 2024
Int. Cl. C10M 143/02 (2006.01); C10M 125/22 (2006.01); C10M 129/10 (2006.01); C10M 129/52 (2006.01); C10M 129/54 (2006.01); C10M 143/04 (2006.01); C10M 169/04 (2006.01); C10N 10/04 (2006.01); C10N 10/06 (2006.01); C10N 10/12 (2006.01); C10N 20/04 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 30/06 (2006.01); C10N 30/10 (2006.01); C10N 30/12 (2006.01); C10N 30/18 (2006.01); C10N 40/25 (2006.01)
CPC C10M 143/02 (2013.01) [C10M 125/22 (2013.01); C10M 129/10 (2013.01); C10M 129/52 (2013.01); C10M 129/54 (2013.01); C10M 143/04 (2013.01); C10M 169/04 (2013.01); C10M 2201/084 (2013.01); C10M 2205/022 (2013.01); C10M 2205/024 (2013.01); C10M 2207/023 (2013.01); C10M 2207/262 (2013.01); C10N 2010/04 (2013.01); C10N 2010/06 (2013.01); C10N 2010/12 (2013.01); C10N 2020/04 (2013.01); C10N 2030/02 (2013.01); C10N 2030/04 (2013.01); C10N 2030/06 (2013.01); C10N 2030/10 (2013.01); C10N 2030/12 (2013.01); C10N 2030/18 (2013.01); C10N 2030/45 (2020.05); C10N 2030/52 (2020.05); C10N 2040/252 (2020.05)] 21 Claims
OG exemplary drawing
 
1. A lubricating oil composition comprising or resulting from the admixing of:
a) 65 to 90 mass %, based upon the weight of the lubricating composition, of one or more base oils;
b) 1.0 to 3.0 mass %, based on total weight of the lubricating composition, of one or more amine functionalized ethylene propylene copolymer having an Mn of from 10,000 to about 35,000 g/mol;
c) 2.0 to 5.0 mass %, based on total weight of the lubricating composition, of one or more detergents wherein the detergent comprises at least one calcium detergent having a TBN of more than 300 mg KOH/g; at least one calcium detergent having a TBN of 70 mg KOH/g or less; and at least one magnesium detergent, where the difference in the TBN's for the Ca detergent having a TBN of 70 mg KOH/g or less and Ca detergent having a TBN of more than 300 mg KOH/g is at least 200 mg KOH/g;
d) 5.0 to 10.0 mass %, based on total weight of the lubricating composition, of one or more PIBSA-PAM dispersants wherein the PIBSA-PAM dispersants comprise at least one borated PIBSA-PAM dispersant and at least one non borated PIBSA-PAM dispersant;
e) 0.3 to 3.0 mass %, based upon the weight of the lubricating composition, of sulfurized fatty acid methyl ester;
f) 0.05 to 1.0 mass %, based upon the weight of the lubricating composition, of molybdenum containing compound comprising trimeric molybdenum dithiocarbamate;
g) 1.5 to 3.0 mass %, based upon the weight of the lubricating composition, of one or more amine or phenol based antioxidants, and
where the lubricating oil composition has:
1) A sulfated ash (ASTM D874) content of 0.9 mass % or less;
2) A Mack T-11 final soot % @ 15 cSt (ASTM D7156-19) of 7.0% or more;
3) A total base number (ASTM D2896) of 5 to 30 mg KOH/g;
4) An HTCBT (ASTM D6594) copper level increase of 20 ppm or less;
5) a T-13 IR peak at end of test (ASTM D 8048) of 40 absorbance per cm or less; and
6) a Cam wear outlet (CEC OM646LA (CEC L-99-08)) of 45 μm or less.