| 摘要 |
<p>A shrink film having high optical clarity, good shrink properties, and good mechanical properties is obtained by stretching biaxially a film made of a copolymer of ethylene with at least one C8-C18 .alpha.-olefin, which copolymer has two distinct crystallite melting points below 128.degree.C, the difference between these melting points being at least 15.degree.C, and stretching being carried within the temperature range defined by these melting points. The above copolymer may be blended with a homopolymer of ethylene or copolymer of ethylene with an ethylenically unsaturated comonomer, which may constitute up to about 95 weight % of the blend. The shrink film of this invention is particularly suitable for wrapping consumer goods which have to maintain good sales appeal.</p> |
