发明授权
- 专利标题： Polymerization process
- 专利标题（中）： 聚合过程
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申请号： US10585199申请日： 2004-12-27
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公开(公告)号： US07666957B2公开(公告)日： 2010-02-23
- 发明人: Kalle Kallio , Janne Maaranen , Eija Lappi , Marina Surakka
- 申请人： Kalle Kallio , Janne Maaranen , Eija Lappi , Marina Surakka
- 申请人地址： FI Porvoo
- 专利权人： Borealis Technology Oy
- 当前专利权人： Borealis Technology Oy
- 当前专利权人地址： FI Porvoo
- 代理机构： Ballard Spahr LLP
- 优先权： EP03258235 20031230
- 国际申请： PCT/EP2004/014738 WO 20041227
- 国际公布： WO2005/063830 WO 20050714
- 主分类号： C08F2/38
- IPC分类号： C08F2/38 ; C08F2/04 ; C08F2/12 ; B01J19/18
摘要：
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.
公开/授权文献
- US20080269435A1 Polymerization Process 公开/授权日：2008-10-30