UV-CURABLE ADHESIVE COMPOSITION AND ADHESIVE
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
May 30, 2022
filing date -
Jun 2, 2021
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Abstract
The present invention aims to provide a UV-curable adhesive composition having excellent printability, excellent UV reactivity in the presence of oxygen, and excellent adhesion to various substrates. The present invention also aims to provide an adhesive containing the UV-curable adhesive composition. Provided is a UV-curable adhesive composition containing: (A) a nitrogen-containing monomer; (B) a monofunctional (meth)acrylate monomer; (C) a crosslinking component; (D) a photopolymerization initiator; and (E) a thermoplastic resin having no reactivity with the nitrogen-containing monomer (A) nor with the monofunctional (meth)acrylate monomer (B), a cured product being obtained by applying the composition to a substrate at a thickness of 150 μm and irradiating the composition with UV light having a wavelength of 315 nm to 480 nm at an irradiance of 90 mW/cm2 and a dose of 1,350 mJ/cm2 in an atmospheric environment, the cured product having a reaction percentage of 80% or higher on both a surface facing the atmosphere and a surface facing the substrate.
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