PRESSURE-SENSITIVE ADHESIVE SHEET
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United States of America Patent
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Issued Date -
May 16, 2013
app pub date -
Nov 14, 2012
filing date -
Nov 15, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a pressure-sensitive adhesive sheet excellent in anti-white turbidity and anti-foaming release property under a high-temperature and high-humidity environment and corrosion resistance. The invention provides a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer which includes an acrylic polymer (A) and has a gel fraction of 70 to 100 wt %, wherein the acrylic polymer (A) is formed from a component including, as an essential monomer component, methyl methacrylate and a hydroxyl group-containing monomer in an amount of 10 to 40 wt % based on a total amount (100 wt %) of the monomer component, the component forming the acrylic polymer (A) substantially does not contain a carboxyl group-containing monomer.
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