RADIATION-CURABLE ADHESIVE SHEET
An object of the present invention is to provide a radiation curable pressure-sensitive adhesive sheet with excellent storage stability, which can suppress the progress of curing during storage and maintain excellent level difference absorbability and stress relaxation properties for a long time. A...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
07.02.2024
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Subjects | |
Online Access | Get full text |
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Summary: | An object of the present invention is to provide a radiation curable pressure-sensitive adhesive sheet with excellent storage stability, which can suppress the progress of curing during storage and maintain excellent level difference absorbability and stress relaxation properties for a long time. A radiation curable pressure-sensitive adhesive sheet 1 of the present invention has a pressure-sensitive adhesive layer 10 that is cured by irradiation with radiation. The pressure-sensitive adhesive layer 10 contains a photopolymerization initiator 11a and a crosslinking agent 11b, and the curing by irradiation with radiation is curing by a reaction between the photopolymerization initiator 11a and the crosslinking agent 11b. In the radiation curable pressure-sensitive adhesive sheet 1 of the present invention, the photopolymerization initiator 11a has a pKa of 5 to 12.7. |
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Bibliography: | Application Number: EP20220780489 |