润滑科技信息平台

专利摘要

润滑剂组合物可用于内燃机的润滑。使用此类润滑剂组合物的方法可包括:使用润滑剂组合物润滑内燃机,所述润滑剂组合物包含: 基于润滑剂组合物的总质量计约30.0质量%至约99.8质量%的油基础油、油包含至少一种多元醇酯的基础油料; 基于润滑剂组合物的总质量,1.0质量%至30.0质量%的聚异丁烯; 并在内燃机中燃烧燃料。 ......

基本信息

专利类型:
发明专利
申请/专利号:
US18/651091
申请日期:
2024-04-30
专利申请人:
埃克森美孚科技工程公司
分类号:
["C10M111/04","C10L1/04","C10M105/38","C10M107/08","C10M129/10","C10M133/12","C10M141/06","C10M169/04","C10N20/02","C10N30/00","C10N30/02","C10N30/10","C10N40/25"]
发明/设计人:
GAO, ZHISHENG ， KOCH, WINFRIED ， MCBRIDE, NICHOLAS W. ， GARY, DANA J.
权利要求: 1. A method comprising:lubricating an internal combustion engine using a lubricant composition comprising:from about 30.0 mass % to about 99.8 mass % of an oil base stock, based on a total mass of the lubricant composition, the oil base stock comprising at least one polyol ester; andfrom 1.0 mass % to 30.0 mass % polyisobutylene, based on a total mass of the lubricant composition; andcombusting a fuel in the internal combustion engine.2. The method of claim 1, wherein the fuel combusted in the internal combustion engine comprises hydrogen, a hydrocarbon, or a combination thereof.3. The method of claim 2, wherein the fuel has a hydrogen concentration of 50 mol % or greater.4. The method of claim 1, wherein the oil base stock has a kinematic viscosity (ASTM D445) of from:(a) 1 cSt to 10 cSt at 100° C.;(b) 2 cSt to 8 cSt at 100° C.;(c) 8 cSt to 16 cSt at 100° C.; or,(d) 9 cSt to 12 cSt at 100° C.5. The method of claim 1, wherein the lubricant composition has a viscosity index (ASTM D2270) from 100 to 180.6. The method of claim 1, wherein the at least one polyol ester comprises a neopentylglycol ester of a C8 to C10 acid, a trimethylolpropane ester of a C8 to C10 acid, mixed pentaerythritol esters of branched alkanoic acids, or any combination thereof.7. The method of claim 6:(a) wherein the C8 to C10 acid comprises 3,5,5-trimethylhexanoic acid;(b) wherein the neopentylglycol ester of a C8 to C10 acid comprises neopentylglycol di(3,5,5-trimethylhexanoate);(c) wherein the trimethylolpropane ester of a C8 to C10 acid comprises trimethylolpropane tri(3,5,5-trimethylhexanoate);(d) wherein the mixed pentaerythritol esters of branched alkanoic acids comprise: from 1 mol % to 5 mol % primary carbon, from 30 mol % to 40 mol % secondary carbon, and from 40 mol % to 50 mol % tertiary carbon, and from 15 mol % to 25 mol % quaternary carbon, as determined by carbon-13 NMR;or a combination of the above.8. The method of claim 1, wherein the polyisobutylene has a kinematic viscosity (ASTM D445) from 1000 cSt to 6000 cSt at 100° C.9. The method of claim 1, wherein the polyisobutylene has a kinematic viscosity (ASTM D445) from 3000 cSt to 6000 cSt at 100° C.10. The method of claim 1, wherein the at least one polyol ester has at least 25% carbon atoms in the form of methyl groups.11. The method of claim 1, wherein the lubricant composition comprises:(a) about 0.05 mass % or less of calcium and about 0.05 mass % or less of magnesium;(b) about 0.05 mass % or less phosphorus and about 0.05 mass % or less sulfur;(c) or both (a) and (b).12. The method of claim 1, further comprising from about 0.1 mass % to about 10.0 mass % of at least one antioxidant, based on the total mass of the lubricant composition and wherein the at least one antioxidant comprises a phenolic antioxidant, an aminic antioxidant, a polyaminic antioxidant, or combinations thereof.13. The method of claim 1, wherein the polyisobutylene has a kinematic viscosity (ASTM D445) of from 4000 cSt to 6000 cSt at 100° C.14. The method of claim 1, wherein the internal combustion engine (a) has a pre-ignition frequency of 2.0% or less at 1200 rpm and an indicated mean effective pressure (IMEP) of from 15 bar to 19 bar or (b) has a pre-ignition frequency of 7.0% or less at 1600 rpm and an indicated mean effective pressure (IMEP) of from 15 bar to 18 bar.15. A lubricant composition for use as an engine oil, comprising:from about 30.0 mass % to about 99.8 mass % of an oil base stock, based on a total mass of the lubricant composition, the oil base stock comprising at least one polyol ester; andfrom 1.0 mass % to 30.0 mass % polyisobutylene, based on a total mass of the lubricant composition;wherein the lubricant composition comprises about 0.05 mass % or less ash.16. The lubricant composition of claim 15, wherein the oil base stock has a kinematic viscosity (ASTM D445) of from:(a) 1 cSt to 10 cSt at 100° C.;(b) 2 cSt to 8 cSt at 100° C.;(c) 8 cSt to 16 cSt at 100° C.; or,(d) 9 cSt to 12 cSt at 100° C.17. The lubricant composition of claim 16, wherein the lubricant composition has a viscosity index (ASTM D2270) from 100 to 180.18. The lubricant composition of claim 16, wherein the at least one polyol ester comprises a neopentylglycol ester of a C8 to C10 acid, a trimethylolpropane ester of a C8 to C10 acid, mixed pentaerythritol esters of branched alkanoic acids, or any combination thereof.19. The lubricant composition of claim 18, wherein(a) the C8 to C10 acid comprises 3,5,5-trimethylhexanoic acid;(b) the neopentylglycol ester of a C8 to C10 acid comprises neopentylglycol di(3,5,5-trimethylhexanoate);(c) the trimethylolpropane ester of a C8 to C10 acid comprises trimethylolpropane tri(3,5,5-trimethylhexanoate);(d) the mixed pentaerythritol esters of branched alkanoic acids comprise: from 1 mol % to 5 mol % primary carbon, from 30 mol % to 40 mol % secondary carbon, and from 40 mol % to 50 mol % tertiary carbon, and from 15 mol % to 25 mol % quaternary carbon, as determined by carbon-13 NMR;or any combination thereof.20. The lubricant composition of claim 15, wherein the polyisobutylene has a kinematic viscosity (ASTM D445) from 1000 cSt to 6000 cSt at 100° C. or has a kinematic viscosity (ASTM D445) from 3000 cSt to 6000 cSt at 100° C.21. The lubricant composition of claim 15, wherein the at least one polyol ester has at least 25% carbon atoms in the form of methyl groups.22. The lubricant composition of claim 15, wherein the lubricant composition comprises (a) about 0.05 mass % or less of calcium and about 0.05 mass % or less of magnesium, (b) about 0.05 mass % or less phosphorus and about 0.05 mass % or less sulfur, or both (a) and (b).23. The lubricant composition of claim 15, wherein the polyisobutylene has a kinematic viscosity (ASTM D445) of from 4000 cSt to 6000 cSt at 100° C.24. A lubricant composition for use as an engine oil, comprising:from about 30.0 mass % to about 99.8 mass % of an oil base stock, based on a total mass of the lubricant composition, wherein the oil base stock has a kinematic viscosity (ASTM D445) of from 1 cSt to 10 cSt at 100° C.; andfrom 1.0 mass % to 30.0 mass % polyisobutylene, based on a total mass of the lubricant composition; andwherein the lubricant composition comprises about 0.05 mass % or less ash.