Title:
粘着シート、フレキシブル画像表示装置部材、光学部材及び画像表示装置
Document Type and Number:
Japanese Patent JP6981519
Kind Code:
B2
Abstract:
Provided is a flexible image display device member having a configuration in which two flexible members are adhered together via a novel adhesive layer that can firmly adhere to highly polar member sheets, and has excellent bendability, wherein the adhesive layer has a maximum value of a loss tangent (tan δ) obtained by dynamic viscoelasticity measurement in a shear mode at a frequency of 1 Hz being at −20° C. or lower, and in the Hansen solubility parameters (δd, δp, and δh) on the adhesive layer surface as measured by a contact angle method, the polar term δp is 2.0 MPa0.5 or more and the hydrogen bond term δh is 5.0 MPa0.5 or more.
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Inventors:
Taiki Taiki
Seiya Minemoto
Seiya Minemoto
Application Number:
JP2020189729A
Publication Date:
December 15, 2021
Filing Date:
November 13, 2020
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
B32B7/12; C09J7/22; C09J7/38; C09J11/06; C09J175/04
Domestic Patent References:
| JP2016121306A | ||||
| JP2008133408A | ||||
| JP2015140358A | ||||
| JP2009242633A | ||||
| JP2018062595A | ||||
| JP2013035920A | ||||
| JP2019173005A |
Attorney, Agent or Firm:
Takeuchi/Ichizawa International Patent Office