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1. (WO2018199739) PRESSURE-SENSITIVE ADHESIVE SHEET

Pub. No.:    WO/2018/199739    International Application No.:    PCT/MY2018/050016
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 07 01:59:59 CEST 2018
IPC: C09J 133/10
C09J 7/38
C09J 7/50
C09J 7/00
C08L 33/08
Applicants: NITTO DENKO CORPORATION
NITTO DENKO MATERIALS (MALAYSIA) SDN. BHD.
Inventors: JOZUKA, Kenta
LEE, Min Jie
CHAI, Lee Lee
Title: PRESSURE-SENSITIVE ADHESIVE SHEET
Abstract:
[Problem] To provide a PSA sheet that combines adhesive strength and ease of rework at a high level. [Solution] Provided is a PSA sheet that comprises a PSA layer formed from a water-dispersed PSA composition, carrier film supporting the PSA layer, and an anchor layer placed between the PSA layer and the carrier film. The carrier film includes plastic film forming at least its anchor layer side. The PSA layer comprises, as its base polymer, an acrylic polymer that is a polymer of monomers including more than 50 % (by weight) C6-10 alkyl (meth)acrylate. The PSA sheet shows a peel strength to stainless steel of 6 N/20mm or greater and the PSA layer shows an anchoring strength of 15 N/20mm or greater.