Pressure-sensitive adhesive sheet
AssigneeNitto Denko Corporation
InventorsKenta JOZUKA, Naoaki HIGUCHI, Naohiro KATO, Yasushi BUZOJIMA
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Abstract
This invention provides a PSA sheet comprising a substrate layer, and a PSA layer provided to at least one face of the substrate layer. The substrate layer has a thickness TS and the PSA layer has a total thickness TPSA at a TS/TPSA ratio value of greater than 0.3, and the PSA layer has a storage modulus at 25° C., G′(25° C.) of 0.15 MPa or greater as well as a loss modulus at 25° C., G″(25° C.), of 2.0 MPa or less.
Claims20
A pressure-sensitive adhesive sheet comprising a substrate layer, and a pressure-sensitive adhesive layer provided to at least one face of the substrate layer, wherein
- the substrate layer has a thickness TS and the pressure-sensitive adhesive layer has a total thickness TPSA at a TS/TPSA ratio value of greater than 0.3, and
- the pressure-sensitive adhesive layer has a storage modulus at 25° C., G′(25° C.) of 0.15 MPa or greater as well as a loss modulus at 25° C., G″(25° C.), of 2.0 MPa or less.
Dependencies are inferred from the claim text.