Title:
SURFACE-PROTECTION-SHEET ADHESIVE COMPOSITION AND SURFACE PROTECTION SHEET
Document Type and Number:
WIPO Patent Application WO/2020/066870
Kind Code:
A1
Abstract:
Provided are: a surface-protection-sheet adhesive composition for a surface protection sheet that is easily laminated on an adherend, that is easily peeled off therefrom, that is capable of preventing the occurrence of adhesive residue on the adherend after being peeled off, and that is capable of suppressing the peeling chargeability when being peeled off; and a surface protection sheet having an adhesive layer consisting of a cured product of the adhesive composition. The present invention provides a surface-protection-sheet adhesive composition containing: a polyurethane (A); a polyfunctional monomer (B); another monomer (C) that is polymerizable with the polyurethane (A) and the polyfunctional monomer (B); a photopolymerization initiator (D); and an ionic liquid (E). The polyurethane (A) has a skeleton including a structure originating from a polyoxyalkylene polyol and a structure originating from a polyisocyanate; (meth)acryloyl groups are included at a plurality of termini of the polyurethane (A); and the polyurethane (A) has a weight average molecular weight of 30,000-200,000.
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Inventors:
IKEYA TATSUHIRO (JP)
SASAKI KAZUHIRO (JP)
NAKANISHI KENICHI (JP)
SASAKI KAZUHIRO (JP)
NAKANISHI KENICHI (JP)
Application Number:
PCT/JP2019/036892
Publication Date:
April 02, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C09J175/04; C09J4/02; C09J7/38; C09J9/02; C09J11/06
Foreign References:
| JP2018095770A | 2018-06-21 | |||
| JP2018053212A | 2018-04-05 | |||
| JP2018016730A | 2018-02-01 | |||
| JP2017149923A | 2017-08-31 | |||
| JP2017025126A | 2017-02-02 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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