SURFACE PROTECTIVE SHEET AND TREATMENT METHOD

Title:

SURFACE PROTECTIVE SHEET AND TREATMENT METHOD

Document Type and Number:

WIPO Patent Application WO/2023/145360

Kind Code:

A1

Abstract:

Provided is a peelable surface protective sheet which adheres well to an object to be treated when the object is treated, and allows for peeling without damaging or deforming an adherend when peeled off. Provided is a surface protective sheet comprising a substrate layer and an adhesive layer provided on one surface of the substrate layer. The surface protective sheet has a water peeling force FW0 of at most 50% of an adhesive force F0. In addition, the adhesive layer includes a base polymer and a tackifier. The content of the tackifier in the adhesive layer is more than 10 parts by weight with respect to 100 parts by weight of the base polymer.

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Inventors:

KUMAKURA KENTA (JP)
KOSAKA NAOFUMI (JP)
SHIMAZAKI YUTA (JP)
SHIIBA KEIKO (JP)

Application Number:

PCT/JP2022/047932

Publication Date:

August 03, 2023

Filing Date:

December 26, 2022

Export Citation:

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Assignee:

NITTO DENKO CORP (JP)

International Classes:

C09J5/00; C09J7/38; C09J11/06; C09J11/08; C09J133/00; C09J201/00

Domestic Patent References:

WO2019151194A1

2019-08-08

Foreign References:

JP2021138934A

2021-09-16

Attorney, Agent or Firm:

OI, Michiko (JP)

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