Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Eija Lappi0
Janne Maaranen0
Kalle Kallio0
Marina Surakka0
Date of Patent
February 23, 2010
Patent Application Number
10585199
Date Filed
December 27, 2004
Patent Primary Examiner
Patent abstract
A process for the polymerisation of ethylene and optionally at least one C3-20 alpha olefin comonomer in the slurry or solution phase in a reactor having a polymer outlet stream, a procatalyst or catalyst feed stream and a hydrogen feed stream, said polymerisation being effected in the presence of a metallocene catalyst, a diluent and hydrogen, wherein said diluent is recycled from said outlet stream to said hydrogen feed stream, said procatalyst or catalyst feed stream is free of hydrogen, said hydrogen feed stream is free of procatalyst or catalyst and said procatalyst or catalyst feed stream does not comprise recycled diluent.
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