Packaging films
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 15, 2002
Grant Date -
Oct 25, 2001
app pub date -
Feb 21, 2001
filing date -
Mar 16, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A film suitable for spiral packaging is highly sealable and provides a strong self-adhesiveness of the front and reverse sides of superposed films upon spiral packaging. The film includes two layers comprising (A) a layer including a resin composition containing at least one kind of adhesives-rendering resin having a resin density of 0.950 g/cm.sup.3, such as rosin resins, at a concentration of 0.002 to 12.0% by weight in a polyolefin resin having a resin density of more than 0.910 g/cm.sup.3, and (B) another layer including a resin composition containing the abovementioned adhesiveness-rendering resin at a concentration of 0.05 to 25.0% by weight and a plasticizing oil at a concentration of 0.01 to 8.0% by weight in a low density linear polyethylene resin having a resin density of 0.860 to 0.920 g/cm.sup.3.
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