Patent on Bio Based OIL

[buster]

http://www.freepatentsonline.com/20060105920.html

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A lubricant exhibiting enhanced properties, including improved load-carrying capacity and wear reduction, includes synthetic and/or mineral oil as a major ingredient, and a performance-enhancing amount of vegetable oil. In addition to providing improved performance characteristics, the vegetable oil additive reduces the need for certain other additives, including pour point depressants and viscosity index improvers, thereby simultaneously lowering the overall cost of the lubricant.

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PRICE HENEVELD COOPER DEWITT & LITTON, LLP 695 KENMOOR, S.E. P O BOX 2567 GRAND RAPIDS MI 49501 US Claims:1. A lubricant exhibiting excellent high temperature oxidative stability, comprising: from about 95% to about 75% (by volume) of a mineral and/or synthetic oil optionally containing performance-enhancing additives; and from about 5% to about 25% (by volume) of a vegetable oil having an oleic content of less than 50%.

2. The lubricant of claim 1, wherein the vegetable oil is corn oil.

3. The lubricant of claim 1, wherein the vegetable oil is deodorized corn oil.

4. The lubricant of claim 1, further comprising a dialkyldithiocarbamate salt.

5. The lubricant of claim 1, further comprising zinc dialkyldithiocarbamate in an amount effective to enhance oxidative stability

1 shows the near-linear effect of adding vegetable oils to engine oils on the kinematic viscosity at 100.degree. C. There is a very substantial viscosity decrease with increasing temperature for mineral oils. To level out the viscosity versus temperature property of mineral oil-based engine oils, one of several synthetic polymers, called viscosity index improvers (VI), are added. Although viscosity index improvers are effective under certain conditions, they are subject to temporary loss of effectiveness at high shear rates, such as are routinely encountered in an engine. It is desirable to minimize or eliminate these additives. Vegetable oils have a naturally higher viscosity index (over 200) than mineral oils. The addition of vegetable oils to a variety of engine oils linearly increases the viscosity index of the blended oil. The last column of Table III shows the viscosity index for several blended oils. The bottom of the Table shows the viscosity index of several pure vegetable oils. A mineral oil generally has a viscosity index of about 100. Vegetable oils typically have a viscosity index of from about 215 to about 230. Addition of vegetable oil(s) to commercial engine oils increases the viscosity index of the blend in a linear fashion.

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There is concern about sufficient pumpability, cold cranking, and the formation of gels upon slow cooling. If the specified criteria are not met, the results of engine wear can be catastrophic. Blending 20% by volume of deodorized corn oil with Valvoline HPO SAE 30 engine oil provides a Newtonian oil containing no viscosity index improver additive. A comparison of certain low temperature properties of a 20% corn oil/80% commercial mineral oil-based lubricant blend with SAE requirements for a 10w30 oil is presented in Table IV. The blend of SAE 30 oil with corn oil (20%) meets all of the requirements for an SAE 10w30 engine oil except the low-temperature cranking at -25.degree. C. However, the viscosity in this temperature range falls so rapidly with temperature that the SAE requirements can be met by increasing the amount of corn oil to about 21-22%. Because there are no viscosity index improver additives in the formulation, the high shear viscosity requirement is easily met. The significance of this formulation is the possibility of providing a fully formulated multi-grade engine oil that does not contain any viscosity index improver additives that could degrade under high shear conditions. TABLE-US-00004 TABLE IV Some Low-Temperature Properties of Valvoline HPO SAE 30 Oil Blended with 20% Corn Oil Low Low Temp. Temp. 150.degree. C., High- Cranking, Pumping, 100.degree. C. Shear,' Test Max. cP Max., cP Viscosity, cSt Min., cP SAE Req. 7000 60,000 9.3-12.5 2.9 at -25.degree. C. at -30.degree. C. SAE 30 with 8,864 32,800 9.50 3.2 Corn oil No yield stress

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[G-MAN]

Hmmm...maybe I should just mix some Crisco with my Valvoline SAE 30 for winter use instead of Amsoil ACD.

 

[Dad2leia]

Crisco, is a saturated fat totally, which is a different animal than a vegetable oil, which is a combination of saturated, monounsaturated, and polyunsaturated fats.

I don't think that you would get the same results there G-Man....besides, the Crisco would be far less piston healthy for your engine...

 

[G-MAN]

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Crisco, is a saturated fat totally, which is a different animal than a vegetable oil, which is a combination of saturated, monounsaturated, and polyunsaturated fats.

I don't think that you would get the same results there G-Man....besides, the Crisco would be far less piston healthy for your engine...

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I was only joking, but this is the Crisco I had in mind.

 

[Dad2leia]

That'll work!!!

 

[Camu Mahubah]

I remember when the Soviet Union collapsed...there was an article about life in Moscow...due to a shortage of cooking oil...Soup kitchens were using a petroleum base oil to fry bread...

 

[oilyriser]

that'll keep them regular