Stretched multilayer polypropylene film
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United States of America Patent
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Apr 22, 1986
Grant Date -
N/A
app pub date -
Jul 11, 1985
filing date -
Jul 13, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stretched multilayer polypropylene film is described, comprising a stretched crystalline polypropylene layer and a layer of a composition (Composition B) laminated on at least one side of said polypropylene layer, wherein the composition B comprises a homo- or copolymer composed mainly of ethylene, propylene or butene-1 and having a melting point of 150.degree. C. or less, and a vinylcycloalkane polymer in an amount of 0.05 wt ppm to 10 wt % calculated as a vinylcycloalkane unit. This multilayer film is greatly improved in optical properties such as excellent see-through properties without deteriorating its good heat sealability. Thus it is very useful for wrapping.
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