IP Library Granted Patent US 12,187,916
Granted Patent B2
US 12,187,916 · App. 17/282,700 · Granted Jan 7, 2025

Curable composition, film, laminated body, and display apparatus

Inventors: Yoshihiro Harada (Osaka, JP); Yoshifumi Komatsu (Osaka, JP)
Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
C09D5/22B32B27/20C09D4/00C09D7/45C09D135/02C09K11/02C09K11/664C09K11/665B32B2307/422B32B2457/206G02F1/133617H01G9/2059H01L33/502
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Quick Facts
Patent No.
US 12,187,916
App. No.
17/282,700
Granted
Jan 7, 2025
Kind
B2
Abstract

An object of the present invention is to provide a curable composition comprising a fluorescent particle containing a perovskite compound and a photopolymerizable compound, with a good dispersibility of the above semiconductor particle to the above photopolymerizable compound; a film formed by curing the curable composition; and a laminated body and a display apparatus comprising the film. Provided are a curable composition comprising a fluorescent particle (A) containing a perovskite compound, a photopolymerizable compound (B), and a dispersing agent (C), wherein the dispersing agent (C) includes at least one kind of compound selected from the group consisting of phosphoric acid compounds, carboxylic acid compounds, sulfonic acid compounds, primary to tertiary amine compounds, quaternary ammonium compounds, and thiol compounds; a film formed by curing the curable composition; and a laminated body and a display apparatus comprising the film.

Claims (19)

1. A curable composition comprising a fluorescent particle (A) containing a perovskite compound, a photopolymerizable compound (B), and a dispersing agent (C),

wherein the dispersing agent (C) is present in the curing composition in an amount of 0.1 to 20 parts by mass relative to 1 part by mass of the fluorescent particle, and the dispersing agent (C) includes at least one kind of compound selected from the group consisting of phosphoric acid compounds, carboxylic acid compounds, and tertiary amine compounds,

the compound selected from the group consisting of phosphoric acid compounds, carboxylic acid compounds, and tertiary amine compounds contains at least one bond selected from the group consisting of an ether bond and an ester bond in a molecular chain,

the tertiary amine compounds do not contain a quaternary ammonium group, and

the curable composition possesses a QY maintenance rate (%) of 80% or more.

2. The curable composition according to claim 1 , further comprising a quantum dot.

3. The curable composition according to claim 1 , wherein:

the dispersing agent (C) is present in the curing composition in an amount of 0.1 to 1 parts by mass relative to 1 part by mass of the fluorescent particle.

4. A film formed by curing the curable composition according to claim 1 .

5. A laminated body comprising the film according to claim 4 and a layer other than the film.

6. A display apparatus comprising the laminated body according to claim 5 .

7. A curable composition comprising a fluorescent particle (A) containing a perovskite compound, a photopolymerizable compound (B), and a dispersing agent (C),

wherein the dispersing agent (C) is present in the curing composition in an amount of 0.1 to 20 parts by mass relative to 1 part by mass of the fluorescent particle, and the dispersing agent (C) includes at least one kind of compound selected from the group consisting of phosphoric acid compounds, carboxylic acid compounds, and tertiary amine compounds,

the compound selected from the group consisting of phosphoric acid compounds, carboxylic acid compounds, and tertiary amine compounds contains at least one bond selected from the group consisting of an ether bond and an ester bond in a molecular chain,

the tertiary amine compounds do not contain a quaternary ammonium group, and

the curable composition possesses a QY maintenance rate (%) of 80% or more, and

wherein the photopolymerizable compound (B) includes a (meth)acrylic compound having three or more (meth)acryloyloxy groups in the molecule.

8. The curable composition according to claim 7 , wherein:

the dispersing agent (C) is present in the curing composition in an amount of 0.1 to 1 parts by mass relative to 1 part by mass of the fluorescent particle.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2021
From: HARADA, YOSHIHIRO; KOMATSU, YOSHIFUMI
To: SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 055821/0653 →
Priority Claims (1)
JP 2018-205893 · Oct 31, 2018 · national
Continuity (1)
Related Publication 20210380820A1 · Dec 9, 2021
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