发明名称 |
PHYSICAL BLENDS OF POLYETHYLENES |
摘要 |
<p>This invention discloses a process for the preparation of polyethylene resins having a narrow molecular weight distribution that comprises the steps of: (i) providing a first high molecular weight metallocene-produced linear low density polyethylene (mLLDPE) resin having a density of from 0.920 to 0.940 g/cm<3> and a MI2 of from 0.05 to 2 g/10 min; (ii) providing a second high density polyethylene (HDPE) prepared either with a Ziegler-Natta or with a metallocene catalyst, said polyethylene having a density ranging from 0.950 to 0.970 g/cm<3> and a MI2 of from 0.5 to 10 g/10 min; (iii) physically blending together the first and second polyethylenes to form a polyethylene resin having a narrow molecular weight distribution, a density ranging from 0.940 to 0.955 g/cm<3> and a MI2 of from 1 to 2 g/10 min.</p> |
申请公布号 |
WO03033587(A1) |
申请公布日期 |
2003.04.24 |
申请号 |
WO2002EP11738 |
申请日期 |
2002.10.16 |
申请人 |
ATOFINA RESEARCH;MAZIERS, ERIC |
发明人 |
MAZIERS, ERIC |
分类号 |
C08F4/645;C08F4/6592;C08F10/00;C08F10/02;C08F210/16;C08F297/06;C08F297/08;C08L23/04;C08L23/06;C08L23/08;C08L23/16;(IPC1-7):C08L23/06 |
主分类号 |
C08F4/645 |
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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