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

Claim 9:
10. A method for producing a protection sheet-bearing member in which a protection sheet is adhered to the surface of the member, the method comprising:
obtaining a pressure-sensitive adhesive sheet comprising a substrate whose primary component is a resin film and a pressure-sensitive adhesive layer placed on a first face of the substrate, wherein the pressure-sensitive adhesive sheet 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;
adhering the protection sheet part to the member; and
pulling the marginal part in a direction in which the pressure-sensitive adhesive sheet is peeled off the member, thereby tearing the marginal part off the protection sheet part leaving the protection sheet part on the member,
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.