US Patent 6884855 Sulfurized polyisobutylene based wear and oxidation inhibitors
Patent 6884855 was granted and assigned to CHEVRON ORONITE COMPANY LLC on April, 2005 by the United States Patent and Trademark Office.
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Patent abstract
Sulfurized olefin compositions and components are prepared from sulfurizing high methylvinylidene polyisobutylene(s) having at least 25% methylvinylidene and a number average molecular weight in the range of about 120 to about 600, at suitable temperatures and pressures. The resulting sulfurized reaction product and polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.
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Patent Inventor Names
Frank Plavac0
Kenneth D. Nelson0
Date of Patent
April 26, 2005
0Patent Application Number
103555390
Date Filed
January 30, 2003
0Patent Primary Examiner
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US Patent 6884855 Sulfurized polyisobutylene based wear and oxidation inhibitors
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