SUBSTRATE FOR RELEASE SHEETS, AND RELEASE SHEET
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United States of America Patent
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Jan 14, 2021
app pub date -
Mar 13, 2019
filing date -
Mar 15, 2018
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Abstract
The present invention relates to a substrate for release sheet including a support, an adhesion layer (X1), and a resin layer (Y1) containing polyethylene having a density of 930 kg/m3 or more and 960 kg/m3 or less in this order, wherein convex portions are present on the surface of the resin layer (Y1), and a difference in height of the convex portions is 0.5 μm or more.
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