发明名称 |
BIMODAL POLYETHYLENE FOR BLOW-MOULDING APPLICATIONS. |
摘要 |
<p>The invention relates to a process for the polymerisation of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10min, and a density of from 0.935 to 0.960 g/cm, wherein in one reactor 30 to 47 wt% based on the total weight of the polyethylene resin of a high molecular weight (HMW) polyethylene fraction is produced having an HL275 of from 0.05 to 1.8 g/10min (the equivalent of HLMI of from 0.01 to 0.56 g/10min), a density of from 0.925 to 0.942 g/cm and a MWD of at least 5.0, and in the other reactor a low molecular weight (LMW) polyethylene fraction is produced an HLMI of from 10 to 1500 g/10 min and a density of from 0.960 to 0.975 g/cm, in the presence of a Ziegler-Natta catalyst system.</p> |
申请公布号 |
MX2012008833(A) |
申请公布日期 |
2012.09.28 |
申请号 |
MX20120008833 |
申请日期 |
2011.02.07 |
申请人 |
TOTAL PETROCHEMICALS RESEARCH FELUY |
发明人 |
VANTOMME, AURELIEN;VAN SINOY, ALAIN;SIRAUX, DANIEL;GIELENS, JEAN-LEON |
分类号 |
C08F2/00;C08F4/654;C08F4/655;C08F10/02 |
主分类号 |
C08F2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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