Novel base stock lubricant blends
First Claim
1. A method of improving air release, comprising a) obtaining a lubricating oil comprising at least two base stocks with the viscosity difference between the first and second base stocks is greater than 96 cSt, Kv100°
- C. and the lubricating oil provides air release of less than 20 minutes time to 0.1% air in a ASTM D3427 test; and
b) lubricating with the lubricating oil.
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Abstract
A method of improving air release is disclosed. The method comprises obtaining a lubricant comprising two base stocks. The first base stock comprises a viscosity greater than 100 cSt, Kv100° C. The second base stock comprises a viscosity less than 10 cSt, Kv100° C. In addition, a lubricant formulation and method of blending a lubricant formulation is also disclosed. The lubricant formulation comprises at least two base stocks. At least 5 percent and no more than 90 percent of a first base stock comprising oil with a viscosity greater than 300 cSt, Kv100° C. At least 5 percent and no more than 90 percent of a second base stock comprising oil with a viscosity less than 10 cSt, Kv100° C.
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Citations
27 Claims
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1. A method of improving air release, comprising
a) obtaining a lubricating oil comprising at least two base stocks with the viscosity difference between the first and second base stocks is greater than 96 cSt, Kv100° - C. and the lubricating oil provides air release of less than 20 minutes time to 0.1% air in a ASTM D3427 test; and
b) lubricating with the lubricating oil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- C. and the lubricating oil provides air release of less than 20 minutes time to 0.1% air in a ASTM D3427 test; and
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12. A lubricating oil with favorable air release properties, comprising
a) at least two base stocks; -
b) at least 5 percent and no more than 90 percent of a first base stock comprising a synthetic oil with a viscosity greater than 300 cSt, Kv100°
C.;
c) at least 5 percent and no more than 90 percent of a second base stock comprising a oil with a viscosity less than 10 cSt, Kv100°
C.;
d) a viscosity difference of the first and second base stocks of at least 290 cSt, Kv100°
C.;
e) wherein the lubricant composition has a viscosity of greater than 4 cSt, Kv100°
C. and a viscosity index of at least 130; and
f) wherein the lubricating oil provides air release of less than 20 minutes time to 0.1% air in a ASTM D3427 test. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of blending a lubricating oil to achieve favorable air release, comprising
a) obtaining a first synthetic base stock lubricant the first base stock having a viscosity greater than 300 cSt, Kv100° - C.;
b) obtaining a second synthetic base stock lubricant, the second base stock lubricant has a viscosity less than 10 cSt, Kv100°
C.; and
c) mixing the first and second base stock lubricant to produce the lubricating oil wherein the lubricating oil to provide a viscosity greater than 4 cSt Kv100°
C., an air release of less than 20 minutes time to 0.1% air in a ASTM D3427 test and a viscosity index greater than 130. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
- C.;
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26. A method of achieving favorable Scanning Brookfield viscosities comprising
a) obtaining a lubricating oil comprising at least two base stocks, at least 5 percent and no more than 90 percent of a first base stock comprising a synthetic oil with a viscosity greater than 100 cSt, Kv100° - C., at least 5 percent and no more than 90 percent of a second base stock comprising a oil with a viscosity less than 6 cSt, Kv100°
C., wherein the lubrication oil provides a Scanning Brookfield Viscosities of less than 6000 cP at −
5 degrees Celsius using a ASTM D5133 test, an air release of less than 20 minutes time to 0.1% air in a ASTM D3427 test andb) lubricating with the lubricating oil.
- C., at least 5 percent and no more than 90 percent of a second base stock comprising a oil with a viscosity less than 6 cSt, Kv100°
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27. A method of achieving favorable pour point comprising
a) obtaining a lubricating oil comprising at least two base stocks, at least 5 percent and no more than 90 percent of a first base stock comprising a synthetic oil with a viscosity greater than 100 cSt, Kv100° - C., at least 5 percent and no more than 90 percent of a second base stock comprising a oil with a viscosity less than 6 cSt, Kv100°
C., wherein the lubrication oil provides a Scanning Brookfield Viscosities of less than 6000 cP at −
5 degrees Celsius using a ASTM D5133 test, an air release of less than 20 minutes time to 0.1% air in a ASTM D3427 test andb) lubricating with the lubricating oil.
- C., at least 5 percent and no more than 90 percent of a second base stock comprising a oil with a viscosity less than 6 cSt, Kv100°
Specification