SURFACE PROTECTION FILM
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United States of America Patent
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Issued Date -
Jul 11, 2013
app pub date -
Oct 4, 2011
filing date -
Oct 5, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A surface protective film includes a polyolefin base material layer and an adhesive layer. The adhesive layer has hardness (Martens hardness) in a range of 1 N/mm2 to 2.5 N/mm2 and loop tack strength in a range of 0.02 N/25 mm to 0.1 N/25 mm. Accordingly, the surface protective film, even in a form of a rolled product, is easily wound off from a surface of the base material, and can obtain a sufficient adhesive strength to an adherend (e.g., a prism sheet) having a projection on its surface.
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