PRESSURE-SENSITIVE ADHESIVE SHEET FOR METAL SURFACE PROTECTION
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United States of America Patent
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Issued Date -
Nov 14, 2013
app pub date -
May 3, 2013
filing date -
May 10, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a metal surface protective pressure-sensitive adhesive sheet comprising a substrate and an acrylic pressure-sensitive adhesive layer that comprises an acrylic polymer and a thermally expandable microsphere provided on at least one face of the substrate. The acrylic polymer is characterized by having a carboxylic acid equivalent weight of 0.0010 eq./g or less and an amine equivalent weight of 0.0050 eq./g to 0.0600 eq./g.
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