PROCESS FOR IMPROVING THERMOSTABILITY OF LUBRICANT OILS IN INTERNAL COMBUSTION ENGINES
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United States of America Patent
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Issued Date -
Feb 6, 2014
app pub date -
Jul 30, 2013
filing date -
Aug 1, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention refers to a process to improve the thermostability of lubricant oils contained in an internal combustion engine, which process comprises operating the said engine with a fuel containing one or more ashless thermostability boosters selected from aromatic amines, substituted phenols and polycyclic phenolic compounds or mixtures thereof. The present invention further refers to a fuel additive composition and to a fuel composition comprising specific nitrogen-containing dispersants, carrier oils, the said ashless thermostability boosters, and optionally corrosion inhibitors and friction modifiers.
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