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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 (5-1, Taito 1-chome, Taito-k, Tokyo 16, 〒1100016, JP)
Application Number:
JP2016/072696
Publication Date:
February 08, 2018
Filing Date:
August 02, 2016
Export Citation:
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Assignee:
TOPPAN PRINTING CO., LTD. (5-1 Taito 1-chome, Taito-ku Tokyo, 16, 〒1100016, JP)
International Classes:
C09J133/08; B05D7/24; B32B27/00; B32B27/30; B32B27/40; C09J175/04
Domestic Patent References:
WO2015060210A12015-04-30
WO2015098314A12015-07-02
Foreign References:
JP2016047924A2016-04-07
JP2015110685A2015-06-18
JP2014108968A2014-06-12
JP2016141771A2016-08-08
JP2010062541A2010-03-18
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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