Title:
ADHESIVE SHEET, LAMINATED SHEET, AND IMAGE DISPLAY DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/189404
Kind Code:
A1
Abstract:
Provided are an adhesive sheet and a laminated sheet obtained by layering a member sheet and the adhesive sheet, in which stress applied to the member sheet is reduced, and neither cracking nor delamination is generated even when a folding operation is performed in low-temperature and high-temperature environments. Also, provided is an adhesive sheet having good restorability when the adhesive sheet is opened from a folded state. Proposed is an adhesive sheet meeting requirements (1) and (2). (1) The storage shear elastic modulus (G'(80°C)) obtained by dynamic viscoelasticity measurement in a shear mode at a frequency of 1 Hz at 80°C is not less than 1 kPa but less than 20 kPa, and the loss tangent (tanδ (80°C)) at 80°C is less than 0.50. (2) The storage shear elastic modulus (G'(-20°C)) obtained by dynamic viscoelasticity measurement in a shear mode at a frequency of 1 Hz at -20°C is not less than 1 kPa but less than 1000 kPa.
More Like This:
Inventors:
TABATA DAIKI (JP)
Application Number:
PCT/JP2019/013268
Publication Date:
October 03, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C09J7/38; B32B27/00; C09J7/22; C09J7/30; C09J123/20; C09J133/00; C09J201/00; G09F9/00
Domestic Patent References:
| WO2016196458A2 | 2016-12-08 | |||
| WO2015152334A1 | 2015-10-08 | |||
| WO2018174085A1 | 2018-09-27 |
Foreign References:
| JP2014231574A | 2014-12-11 | |||
| JP2017095655A | 2017-06-01 | |||
| JP2017226785A | 2017-12-28 | |||
| JP2017119801A | 2017-07-06 | |||
| JP2018168305A | 2018-11-01 |
Attorney, Agent or Firm:
TAKEUCHI, ICHIZAWA & ASSOCIATES (JP)
Download PDF: