Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and...
Reexamination Certificate
2005-01-25
2005-01-25
McAvoy, Ellen M. (Department: 1764)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
C585S007000, C585S013000
Reexamination Certificate
active
06846778
ABSTRACT:
A synthetic, isoparaffinic heavy hydrocarbon composition useful as a heavy lubricant base stock contains hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100° C., at which temperature its kinematic viscosity is above 8 cSt and has respective initial and end boiling points of at least 850 and 1000° F. (454 and 538° C.). The branching index BI and the branching proximity CH2>4 of the isoparaffinic hydrocarbon molecules, are such that:in-line-formulae description="In-line Formulae" end="lead"?BI−0.5(CH2>4)<15; and (a)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?BI+0.85(CH2>4)<45; (b)in-line-formulae description="In-line Formulae" end="tail"?as measured over the hydrocarbon composition as a whole.
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Ansell Loren Leon
Bishop Adeana Richelle
Fiato Rocco Anthony
Genetti William Berlin
Johnson Jack Wayne
ExxonMobil Research and Engineering Company
Marin Mark D.
McAvoy Ellen M.
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