LOW MOLECULAR WEIGHT ETHYLENE/ALPHA-OLEFIN INTERPOLYMER AS BASE LUBRICANT OILS

A lubricant composition comprises an ethylene/a-olefin interpolymer having a number average molecular weight of less than 10,000 g/mol as a base oil and at least one oil additive. The ethylene/a-olefin interpolymer has at least one molecular fraction which elutes between 40°C and 130°C when fraction...

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Bibliographic Details
Main Authors WALTON, KIM, LOUIS, RATH, GARY, L, CHEUNG, YUNWA, WILSON, HUGHES, MORGAN, MARK
Format Patent
LanguageEnglish
French
German
Published 27.04.2011
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
FUELS
LUBRICANTS
LUBRICATING COMPOSITIONS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:A lubricant composition comprises an ethylene/a-olefin interpolymer having a number average molecular weight of less than 10,000 g/mol as a base oil and at least one oil additive. The ethylene/a-olefin interpolymer has at least one molecular fraction which elutes between 40°C and 130°C when fractionated using TREF, characterized in that the fraction has a molar comonomer content of at least 5 percent higher than that of a comparable random ethylene interpolymer fraction eluting between the same temperatures, wherein said comparable random ethylene interpolymer has the same comonomer(s) and has a melt index, density, and molar comonomer content (based on the whole polymer) within 10 percent of that of the ethylene/a-olefÊn interpolymer.
Bibliography:Application Number: EP20060738858