发明名称 |
Biaxially oriented multi-layer polyolefin film |
摘要 |
The present invention relates to a transparent, coextruded, multi-layer polyolefin film which is heat-sealable on both sides and has a base layer which comprises a peroxidically degraded polypropylene polymer and top layers which comprise heat-sealable ethylene-propylene polymers. The multi-layer film is characterized by high shrinkability in the longitudinal and transverse directions, in combination with excellent optical properties and good runability on high-speed wrapping machines and is especially useful as a packaging or wrapping film. The invention also relates to a process for the preparation of a film of this kind and to its use.
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申请公布号 |
US5254393(A) |
申请公布日期 |
1993.10.19 |
申请号 |
US19910780059 |
申请日期 |
1991.10.21 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
MURSCHALL, URSULA;PEIFFER, HERBERT;SCHLOEGL, GUNTER |
分类号 |
B32B27/32;B65D65/40;B65D75/00;(IPC1-7):B32B15/08;B32B7/02;D02J1/22 |
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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