Lubricant base stocks from renewable sources with improved low temperature properties

US9206370B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9206370-B2
Application numberUS-201213717783-A
CountryUS
Kind codeB2
Filing dateDec 18, 2012
Priority dateMar 13, 2009
Publication dateDec 8, 2015
Grant dateDec 8, 2015

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Abstract

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Provided are lube base stocks produced from renewable biological sources with improved low temperature properties. In one form, the lube base stock includes from 10 to 35 wt. % paraffins, 40 to 70 wt. % 1-ring naphthenes, and 0 to 40 wt. % combined 2-ring naphthenes and aromatics, and has a ratio of 1-ring naphthenes to paraffins from 1.8 to 5.0, and a Viscosity Index of from 100 to 160. The lube base stock has a 14 C level ranging from 2 to 101% of the modern day 14 C level in the atmosphere, and yields a CCS ratio (Cold Crank Simulator (CCS) viscosity to the predicted CCS viscosity by Walther equation) of less than or equal to 0.85 at −35° C. The base stocks are useful as in formulated lubricant compositions requiring improved low temperature properties.

First claim

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What is claimed is: 1. A lube base stock produced from a renewable biological source comprising from 10 to 35 wt. % paraffins, 40 to 70 wt. % 1-ring naphthenes, and 0 to 40 wt.% combined 2-ring naphthenes and aromatics, wherein the Free Carbon Index is less than 3.0, wherein pendant methyl groups mole % is less than or equal to 4.33, wherein the ratio of 1-ring naphthenes to paraffins is from 1.8 to 5.0, and wherein the Viscosity Index of the lube base stock is from 100 to 1…

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What does patent US9206370B2 cover?
Provided are lube base stocks produced from renewable biological sources with improved low temperature properties. In one form, the lube base stock includes from 10 to 35 wt. % paraffins, 40 to 70 wt. % 1-ring naphthenes, and 0 to 40 wt. % combined 2-ring naphthenes and aromatics, and has a ratio of 1-ring naphthenes to paraffins from 1.8 to 5.0, and a Viscosity Index of from 100 to 160. The lu…
Who is the assignee on this patent?
Exxonmobil Res & Eng Co
What technology area does this patent fall under?
Primary CPC classification C10M105/06. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Dec 08 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).