Title:
紫外線硬化型接着剤組成物、それを用いた貼り合せ方法及び物品
Document Type and Number:
Japanese Patent JP7184853
Kind Code:
B2
Abstract:
To provide an ultraviolet curable adhesive composition which is used to bond at least two optical substrates, can suppress warpage of optical members such as display devices under low temperature environment and has high adhesive strength and to provide a cured product of the adhesive composition and an optical member having a cured product layer.SOLUTION: There is provided an ultraviolet curable adhesive composition which is used to bond at least two optical substrates and comprises a (meth)acrylate having a phosphate group [component A], a monofunctional (meth) acrylate having a hydroxyl group [component B], a monofunctional (meth) acrylate having no hydroxyl group [component C] and a photopolymerization initiator [component D], wherein the total content of the [component B] and the [component C] is 70 mass% or more based on the total amount of the ultraviolet curable adhesive composition and the shear elastic modulus at -20°C of a cured product obtained by curing the adhesive composition is 1.0×106 Pa or less.SELECTED DRAWING: Figure 1
Inventors:
Hayashi Motohashi
Application Number:
JP2020138344A
Publication Date:
December 06, 2022
Filing Date:
August 19, 2020
Export Citation:
Assignee:
NIPPON KAYAKU KABUSHIKI KAISHA
International Classes:
C09J4/02; C09J11/06
Domestic Patent References:
| JP2012162652A | ||||
| JP9183951A | ||||
| JP7233356A | ||||
| JP2021109889A |
Foreign References:
| US20180134930 |
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