ADHESIVE SHEET, FLEXIBLE IMAGE DISPLAY MEMBER, AND FLEXIBLE IMAGE DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
May 2, 2024
filing date -
Mar 16, 2022
priority date (Note) -
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Abstract
The present disclosure provides an adhesive sheet formed from an adhesive composition containing a (meth)acrylic acid ester copolymer and a crosslinker, in which the (meth)acrylic acid ester copolymer contains, as components that constitute the copolymer, (A) a branched or linear C1 to C20 alkyl (meth)acrylic acid ester monomer, (B) a monomer having an alkylene glycol group in a molecule and having a (meth)acryloyl group, and (C) a nitrogen-containing vinyl monomer, and the adhesive sheet has a storage shear modulus at −30° C. (G′ (−30° C.)) of not greater than 250 kPa obtained by dynamic viscoelasticity measurement with a shearing mode at a frequency of 1 Hz, and has a strain recovery rate (400%, 1 minute) of not less than 70%.
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