Title:
COATING FLUID FOR PRESSURE-SENSITIVE ADHESIVE, METHOD FOR FORMING PRESSURE-SENSITIVE ADHESIVE LAYER USING SAME, AND LAMINATED FILM
Document Type and Number:
WIPO Patent Application WO/2018/025335
Kind Code:
A1
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.
Inventors:
IWATA SATOSHI (JP)
Application Number:
PCT/JP2016/072696
Publication Date:
February 08, 2018
Filing Date:
August 02, 2016
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
C09J133/08; B05D7/24; B32B27/00; B32B27/30; B32B27/40; C09J175/04
Domestic Patent References:
| WO2015060210A1 | 2015-04-30 | |||
| WO2015098314A1 | 2015-07-02 |
Foreign References:
| JP2016047924A | 2016-04-07 | |||
| JP2015110685A | 2015-06-18 | |||
| JP2014108968A | 2014-06-12 | |||
| JP2016141771A | 2016-08-08 | |||
| JP2010062541A | 2010-03-18 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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