发明名称 |
Orientierte mehrschichtige Polyolefinfolien |
摘要 |
<p>A multi-layered biaxially oriented film comprising at least one primary layer and at least one secondary layer, wherein the primary layer comprises a propylene copolymer having a first melting point and the secondary layer comprises a polypropylene homopolymer or copolymer having a second melting point, such that the second melting point is greater than the first melting point and the multi-layered construction is biaxially stretched. The multi-layered film further includes a surface finishing layer, to provide a writable multi-layered film. This stretched film exhibits a refractive index in the machine direction (MD) that is greater than the refractive index measured in the transverse direction (TD).</p> |
申请公布号 |
DE60129362(D1) |
申请公布日期 |
2007.08.23 |
申请号 |
DE2001629362 |
申请日期 |
2001.02.02 |
申请人 |
3M INNOVATIVE PROPERTIES CO. |
发明人 |
HAGER, PATRICK J.;BARTUSIAK, JOSEPH T.;HAMER, KEVIN M.;KOZULLA, RANDALL E.;DENKER, MARTIN E. |
分类号 |
B32B27/32;C08J5/18;B29C55/12;B29K23/00;B29L7/00;B29L9/00;C08L23/06;C08L23/10;C09J7/02;C09J201/00 |
主分类号 |
B32B27/32 |
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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