Novel VI enhancing compositions and Newtonian lube blends

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

5012020

SERIAL NO

07345606

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A novel composition is disclosed that is particularly useful as a lubricant viscosity index improver. The composition comprises branched branched C.sub.30 -C.sub.10000 hydrocarbons that have a branch ratio of less than 0.19 and viscosity at 100.degree. C. between 725 CS and 15,000 cS. The novel compositions comprise the product of the oligomerization of C.sub.6 to C.sub.20 alpha-olefin feedstock, or mixtures thereof, under oligomerization conditions at a temperature between -20.degree. C. and +90.degree. C. in contact with a reduced valence state Group VIB metal catalyst on porous support. The compositions have viscosities at 100.degree. C. between 725 cS and 15,000 cS. Using the foregoing compositions in admixture with mineral oil and synthetic lubricants provides novel lubricant blends that show an elevated viscosity index. The mixtures also show an increased stability to shear stress at high temperature with all blends notable by exhibiting Newtonian flow.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MOBIL OIL CORPORATIONNEW YORK, NY576

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jackson, Andrew Princeton, NJ 81 1173
Wu, Margaret M Belle Mead, NJ 91 1853

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Phillips Petroleum Company (3)
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* 4605810 Allene or alkyne treatment of olefin conversion catalysts 11 1985
 
Mobil Oil Corporation (5)
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* 4827064 High viscosity index synthetic lubricant compositions 196 1988
* 4827073 Process for manufacturing olefinic oligomers having lubricating properties 149 1988
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* 4912277 Process for preparing long chain alkyl aromatic compounds 14 1989
 
SHELL OIL COMPANY (1)
* 4368342 Benzene alkylation process 9 1982
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2010/0105,585 Low sulfur and ashless formulations for high performance industrial oils 11 2009
 
IDEMITSU KOSAN CO., LTD. (2)
6414090 Process for producing a polymer of an .alpha.-olefin and lubricant 54 2001
6583239 Process for producing a polymer of an .alpha.-olefin and lubricant 4 2002
 
EXXONMOBIL CHEMICAL PATENTS INC. (22)
8399390 HVI-PAO in industrial lubricant and grease compositions 2 2005
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8748361 Polyalpha-olefin compositions and processes to produce the same 2 2006
* 2009/0005,279 Polyalpha-Olefin Compositions and Processes to Produce the Same 35 2006
8921291 Lubricants from mixed alpha-olefin feeds 3 2006
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7989670 Process to produce high viscosity fluids 8 2007
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8513478 Process to produce polyalphaolefins 2 2007
* 2009/0036,725 Process To Produce Polyalphaolefins 30 2007
9469704 Utilization of linear alpha olefins in the production of metallocene catalyzed poly-alpha olefins 0 2008
* 2009/0221,775 Utilization Of Linear Alpha Olefins In The Production Of Metallocene Catalyzed Poly-Alpha Olefins 5 2008
9365663 Production of shear-stable high viscosity PAO 0 2009
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9409834 Low viscosity poly-alpha-olefins 0 2012
 
Mobil Oil Corporation (10)
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The Lubrizol Corporation (3)
6962895 Lubricating compositions 30 1997
* 5883057 Lubricating compositions 13 1997
6689723 Sulfide- and polysulfide-containing lubricating oil additive compositions and lubricating compositions containing the same 13 2002
 
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (21)
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8535514 High viscosity metallocene catalyst PAO novel base stock lubricant blends 2 2007
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8476205 Chromium HVI-PAO bi-modal lubricant compositions 2 2009
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8716201 Alkylated naphtylene base stock lubricant formulations 0 2010
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8299007 Base stock lubricant blends 5 2010
8759267 Method for improving the fuel efficiency of engine oil compositions for large low and medium speed engines by reducing the traction coefficient 0 2011
8748362 Method for improving the fuel efficiency of engine oil compositions for large low and medium speed gas engines by reducing the traction coefficient 0 2011
8728999 Method for improving the fuel efficiency of engine oil compositions for large low and medium speed engines by reducing the traction coefficient 0 2011
8642523 Method for improving the fuel efficiency of engine oil compositions for large low and medium speed engines by reducing the traction coefficient 1 2011
8598103 Method for improving the fuel efficiency of engine oil compositions for large low, medium and high speed engines by reducing the traction coefficient 1 2011
* 2011/0195,882 METHOD FOR IMPROVING THE FUEL EFFICIENCY OF ENGINE OIL COMPOSITIONS FOR LARGE LOW, MEDIUM AND HIGH SPEED ENGINES BY REDUCING THE TRACTION COEFFICIENT 0 2011
* 2011/0195,883 METHOD FOR IMPROVING THE FUEL EFFICIENCY OF ENGINE OIL COMPOSITIONS FOR LARGE LOW AND MEDIUM SPEED GAS ENGINES BY REDUCING THE TRACTION COEFFICIENT 0 2011
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8921290 Gear oil compositions 0 2013
 
CHEMTURA CORPORATION (4)
7880047 Polyalphaolefins and processes for forming polyalphaolefins 20 2008
* 2009/0281,360 POLYALPHAOLEFINS AND PROCESSES FOR FORMING POLYALPHAOLEFINS 15 2008
8389780 Polyalphaolefins and processes for forming polyalphaolefins 1 2010
* 2011/0092,752 Polyalphaolefins and processes for forming polyalphaolefins 1 2010
 
ABB LUMMUS GLOBAL INC. (1)
* 2006/0009,666 Hydrogenation of aromatics and olefins using a mesoporous catalyst 3 2005
 
EXXON CHEMICAL PATENTS INC. (1)
* 5558802 Multigrade crankcase lubricants with low temperature pumpability and low volatility 18 1995
* Cited By Examiner