发明名称 |
PHYSICAL BLEND OF POLYETHYLENES |
摘要 |
This invention discloses a process for the preparation of polyethylene resins having a multimodal 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 HLMI 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 chromium based catalyst, said polyethylene having a density ranging from 0.950 to 0.970 g/cm<3> and a HLMI of from 5 to 100 g/10 min; (iii) physically blending together the first and second polyethylenes to form a polyethylene resin having a semi-high molecular weight, a broad or multimodal molecular weight disribution, a density ranging from 0.948 to 0.958 g/cm<3> and a HLMI of from 2 to 20 g/10 min.
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申请公布号 |
WO03051937(A8) |
申请公布日期 |
2003.09.12 |
申请号 |
WO2002EP14171 |
申请日期 |
2002.12.12 |
申请人 |
ATOFINA RESEARCH;MAZIERS, ERIC |
发明人 |
MAZIERS, ERIC |
分类号 |
B65D1/02;B65D1/00;B65D1/12;C08F10/02;C08F297/08;C08L23/04;C08L23/06;C08L23/08;(IPC1-7):C08F10/02 |
主分类号 |
B65D1/02 |
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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