LUBRICANT COMPOSITION FOR USE THE REDUCTION OF PISTON RING FOULING IN AN INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Dec 17, 2009
app pub date -
Nov 9, 2007
filing date -
Nov 10, 2006
priority date (Note) -
Abandoned
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Abstract
/s (cSt), a cold cranking simulated dynamic viscosity at −15° C. according to ASTM D 5293 of less than 9500 mPas (cP) and a mini rotary viscosity test value of less than 60000 mPas at −20° C. according to ASTM D 4684, and wherein the base oil or base oil blend has been obtained from a waxy paraffinic Fischer-Tropsch synthesized hydrocarbon fraction and comprises a continuous series of isoparaffins having n, n+1, n+2, n+3 and n+4 carbon atoms, wherein n is between 15 and 35, suitable for the reduction of piston ring fouling in an internal combustion engine.
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