发明名称 |
POLYETHYLENE BLENDS AND FILMS |
摘要 |
A blend comprising a high molecular weight, medium density polyethylene (HMW , MDPE) and a linear low density polyethylene (LLDPE) is disclosed. The blend comprises from about 20 wt % to about 80 wt % of HMW MDPE. The HMW MDPE has a density from about 0.92 to about 0.944 g/cc, a melt index MI2 from about 0.0 1 to about 0.5 dg/min, and a melt flow ratio MFR from about 50 to about 300. T he blend also comprises about 20 wt % to about 80 wt % of LLDPE. The LLDPE has a density within the range of about 0.90 to about 0.925 g/cc and an MI2 within the range of about 0.50 to about 50 dg/min. The blend provides films with significantly improved toughness and tear strength compared to MDPE or HDPE, and high modulus compared to LLDPE.
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申请公布号 |
CA2424942(A1) |
申请公布日期 |
2002.07.18 |
申请号 |
CA20012424942 |
申请日期 |
2001.10.09 |
申请人 |
EQUISTAR CHEMICALS, LP |
发明人 |
IMFELD, STEPHEN M.;CHANDRASHEKAR, VENKI;CRIBBS, LEONARD V.;WILLIAMS, KELLY L. |
分类号 |
C08J5/18;C08L23/04;C08L23/06;C08L23/08;(IPC1-7):C08L23/04;C08L23/16 |
主分类号 |
C08J5/18 |
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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