Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 15, 2009
Patent Application Number
12316949
Date Filed
December 18, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A lubricating oil suitable for use in α-olefin compressors and a high-pressure ethylene polymerization process is disclosed. The oil comprises a base fluid and a hindered C6-C30 alkyl 4-hydroxybenzoate. The hindered C6-C30 alkyl 4-hydroxybenzoate stabilizes the lubricating oil and does not interfere with the high-pressure α-olefin polymerization.
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