Patent ID: 11866613
Assignee: NITTO DENKO CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method for protecting a surface of an adherend comprising:
attaching a pressure-sensitive adhesive sheet comprising a substrate which comprises a resin film and a pressure-sensitive adhesive layer placed on a first face of the substrate to the surface of the adherend, wherein
the pressure-sensitive adhesive sheet further comprises a protection sheet part to be adhered to an adherend to protect the adherend, a marginal part bounded from the protection sheet part by a tear-off line surrounding the protection sheet part, and a tear-aiding structure provided along the tear-off line, wherein the protection sheet part exhibits a 180° peel strength of 3 N/25 mm or greater, and
removing the marginal part from the protection sheet part by pulling the marginal part in a direction in which the pressure-sensitive adhesive sheet is peeled off the adherend and tearing the marginal part off the protection sheet part,
wherein, prior to being attached, the pressure-sensitive adhesive sheet is wound in a roll, and the pressure-sensitive adhesive sheet comprises a plurality of the protection sheet parts serially arranged in the length direction of the pressure-sensitive adhesive sheet.