发明名称 |
Multilayer shrink film for high speed packaging lines |
摘要 |
A multilayer shrink film and methods of making same comprising high speed polyethylenic outer layers along with one or more cyclic-olefin copolymer (COC) containing inner layers. The multilayer shrink films of the invention are produced using film biaxial orienting means, have haze values of 5 or less and Young's modulus of 50,000 psi or greater and superior hot slip properties. In order to achieve the desired modulus, films of the present invention comprise from 10% to 30% COC and from 2% to 25% softening olefin copolymer. Preferably the film comprises large proportion of linear low density polyethylene (LLDPE). Suitable COCs for use in the invention are limited to single site catalyzed COC.
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申请公布号 |
US2004234800(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
US20040792015 |
申请日期 |
2004.03.03 |
申请人 |
ARTHURS TREVOR;TAGHAVI SHANE |
发明人 |
ARTHURS TREVOR;TAGHAVI SHANE |
分类号 |
B29C55/26;B29C55/28;B32B27/32;C08J;F16B4/00;(IPC1-7):F16B4/00 |
主分类号 |
B29C55/26 |
代理机构 |
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地址 |
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