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US 2020/0148919 A1Published application
Portable electronic device and pressure-sensitive adhesive sheet
AssigneeNitto Denko Corporation
InventorsToshiki Ikami, Yasushi Buzojima, Kenta Jozuka, Naoaki Higuchi, Midori Segawa, Naohiro Kato
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Abstract
Provided is a PSA sheet capable of providing reliable adhesion even upon exposure to cosmetics, chemicals and the like containing polar compounds. The PSA sheet provided by this invention has a PSA layer comprising a polyester-based polymer. The PSA sheet has a 180° peel strength of 1 N/5 mm or greater after ethanol immersion.
Claims20
A portable electronic device having a touch panel whose display also serves as an input device, wherein
- the touch panel can be operated by direct finger touch,
- the portable electronic device has components bonded together with a pressure-sensitive adhesive sheet,
- the pressure-sensitive adhesive sheet has a pressure-sensitive adhesive layer comprising a polyester-based polymer, and
- the pressure-sensitive adhesive sheet has a 180° peel strength of 1 N/5 mm or greater after ethanol immersion.
1 more element
A pressure-sensitive adhesive sheet,
- having a pressure-sensitive adhesive layer comprising a polyester-based polymer;
- and
- having a 180° peel strength of 1N/5 mm or greater after ethanol immersion.
Dependencies are inferred from the claim text.