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1. (WO2018025335) COATING FLUID FOR PRESSURE-SENSITIVE ADHESIVE, METHOD FOR FORMING PRESSURE-SENSITIVE ADHESIVE LAYER USING SAME, AND LAMINATED FILM

Pub. No.:    WO/2018/025335    International Application No.:    PCT/JP2016/072696
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Wed Aug 03 01:59:59 CEST 2016
IPC: C09J 133/08
B05D 7/24
B32B 27/00
B32B 27/30
B32B 27/40
C09J 7/02
C09J 175/04
Applicants: TOPPAN PRINTING CO., LTD.
凸版印刷株式会社
Inventors: IWATA Satoshi
岩田 賢
Title: COATING FLUID FOR PRESSURE-SENSITIVE ADHESIVE, METHOD FOR FORMING PRESSURE-SENSITIVE ADHESIVE LAYER USING SAME, AND LAMINATED FILM
Abstract:
The present invention provides a coating fluid for pressure-sensitive adhesives which comprises a hydroxylated acrylic copolymer as a main component, the coating fluid for pressure-sensitive adhesives, after an isocyanate-based hardener is added thereto, being applied as a thermally curable pressure-sensitive adhesive solution by gravure coating. The acrylic copolymer has a weight-average molecular weight of 40,000-310,000. The coating fluid for pressure-sensitive adhesives has a solid-component concentration of 44-60 mass% and a viscosity at 25ºC of 5,000-7,500 mPa·s.