发明名称 |
Polyethylene films with improved physical properties |
摘要 |
Metallocene catalyzed polyethylenes are found to have improved physical properties, improved processability and improved balance of properties. Surprisingly, there is a direct relationship between MD shrinkage, and MD tear. Additionally, MD tear is greater than TD tear, and MD tear is also greater than intrinsic tear. MD tear to TD tear ratios are above 0.9, and dart drop impact is above 500 g/mil. The polyethylenes have a relatively broad composition distribution and relatively broad molecular weight distribution.
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申请公布号 |
US6956088(B2) |
申请公布日期 |
2005.10.18 |
申请号 |
US20020199446 |
申请日期 |
2002.07.19 |
申请人 |
UNIVATION TECHNOLOGIES, LLC |
发明人 |
FARLEY JAMES MCLEOD;SZUL JOHN F.;MCKEE MATTHEW GARY |
分类号 |
C08J5/18;B29C47/88;B29C47/92;B29K23/00;B29L7/00;B32B27/00;B32B27/32;C08F4/06;C08F4/44;C08F4/64;C08F210/14;C08F210/16;C08L23/08;(IPC1-7):C08F4/06 |
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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