Title:
フォルダブルディスプレイ用粘着剤組成物、及びフォルダブルディスプレイ用光学部材
Document Type and Number:
Japanese Patent JP7338829
Kind Code:
B2
Abstract:
Provided are an adhesive composition for a foldable display, and an optical member for a foldable display. The adhesive composition for a foldable display comprises: a (meth)acrylic copolymer (A) which contains a hydroxyl group-containing monomer unit (a1), a carboxyl group-containing monomer unit (a2), and an alkyl (meth)acrylate monomer unit (a3), wherein a content of the unit (a1) is 1.5 to 20 mass%, and a weight average molecular weight of the (meth)acrylic copolymer (A) is 1,000,000 or more; a (meth)acrylic copolymer (B) which contains a hydroxyl group-containing monomer unit (b1), wherein a content of the unit (b1) is 3 to 40 mass%, and a weight average molecular weight of the (meth)acrylic copolymer (B) is 2,500 to 10,000; and an isocyanate crosslinking agent. A content of the copolymer (B) is 3 to 50 parts by weight with respect to 100 parts by weight of the copolymer (A). According to the present invention, the adhesive composition for a foldable display is used to form an adhesive layer which is excellent in bending resistance at room temperature.
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Inventors:
Tenshin Kanzaki
Yoshifumi Yasuda
Hajime Kano
Akira Kamoi
Yoshifumi Yasuda
Hajime Kano
Akira Kamoi
Application Number:
JP2019222470A
Publication Date:
September 05, 2023
Filing Date:
December 09, 2019
Export Citation:
Assignee:
Nippon Carbide Industry Co., Ltd.
International Classes:
C09J133/14; C09J7/38; C09J11/06
Domestic Patent References:
| JP2017179096A | ||||
| JP2018123224A |
Foreign References:
| WO2019026753A1 | ||||
| WO2012128294A1 |
Attorney, Agent or Firm:
Kazunobu Kato
Hiroshi Fukuda
Hiroshi Fukuda
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