US2010216678A1PendingUtilityA1
Lubricant compositions containing glycerol tri-esters
Est. expiryFeb 24, 2029(~2.6 yrs left)· nominal 20-yr term from priority
C10M 111/04C10M 2207/401C11C 3/02C10M 2205/0285C10M 2203/1025C10N 2020/011C10N 2020/02C10N 2020/013C10N 2020/04
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Claims
Abstract
A lubricant composition comprising a Group I-IV or Group VI lube base stock and a glycerol tri-ester of the formula: wherein R 1 , R 2 and R 3 are independently selected from linear or branched C 4 to C 14 alkyl groups.
Claims
exact text as granted — not AI-modified1 . A lubricant composition comprising a Group I-IV or Group VI lube base stock and a glycerol tri-ester of the formula:
wherein R 1 , R 2 and R 3 are independently selected from linear or branched C 4 to C 14 alkyl groups.
2 . The lubricant composition of claim 1 , wherein the Group I-IV or Group VI lube base stock is present in an amount of 50 wt % to 99 wt %.
3 . The lubricant composition of claim 1 , wherein the lube base stock is a liquid polyalphaolefin having a Kv 100 of from greater than 3 cSt to 10,000 cSt.
4 . The lubricant composition of claim 1 , wherein R 1 , R 2 and R 3 are the same or different.
5 . The lubricant composition of claim 4 , wherein R 1 , R 2 and R 3 are linear alkyl groups.
6 . The lubricant composition of claim 4 , wherein R 1 , R 2 and R 3 are branched alkyl groups.
7 . The lubricant composition of claim 4 , wherein R 1 , R 2 and R 3 are a combination of linear and branched alkyl groups.
8 . The lubricant composition of claim 1 , wherein the glycerol tri-ester is glycerol trioctanoate.
9 . The lubricant composition of claim 1 , wherein the glycerol tri-ester is glycerol trinonanoate.
10 . The lubricant composition of claim 1 , wherein the glycerol tri-ester is glycerol tridecanoate.
11 . The lubricant composition of claim 1 , wherein the glycerol tri-ester has a Kv 100 of less than 20 cSt.
12 . The lubricant composition of claim 1 , wherein the glycerol tri-ester has a VI greater than 90.
13 . The lubricant composition of claim 3 , wherein the liquid polyalphaolefin has a Kv 100 of from greater than 3 cSt to 300 cSt.
14 . The lubricant composition of claim 1 , wherein the glycerol tri-ester has a pour point of less than 0° C.
15 . The lubricant composition of claim 1 , further comprising at least one additive selected from the group consisting of detergents, dispersants, antioxidants, antiwear additives, pour point depressants, viscosity index modifiers, friction modifiers, defoaming agents, corrosion inhibitors, wetting agents, densifiers, fluid-loss additives and rust inhibitors.
16 . The lubricant composition of claim 1 , wherein the Group I-IV or Group VI lube base stock is derived from a gas-to-liquid hydrocarbon material.
17 . The lubricant composition of claim 1 , wherein the Group I-IV or Group VI lube base stock is a Group III lube base stock.
18 . A lubricant composition comprising greater than 50 wt % of a metallocene-catalyzed PAO lube base stock, having a Kv 100 from 3 cSt to 300 cSt, and less than 50 wt % of a glycerol tri-ester of the formula:
wherein R 1 , R 2 and R 3 are independently selected from linear or branched C 4 to C 14 alkyl groups.
19 . A lubricant composition comprising greater than 50 wt % of a Group III lube base stock, and less than 50 wt % of a glycerol tri-ester of the formula:
wherein R 1 , R 2 and R 3 are independently selected from linear or branched C 4 to C 14 alkyl groups.Cited by (0)
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