# US 2021/0340441 A1 · Organic electronic material and organic electronic element

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- Number: US 2021/0340441 A1
- Document ID: US20210340441A1
- Status: Published application
- Kind: A1
- Application number: 17/279,596
- Filed: 2018-09-28
- Published: 2021-11-04
- Earliest claimed: 2018-09-28
- Assignees: Showa Denko Materials Co., Ltd.
- Applicants: Showa Denko Materials Co., Ltd.
- Inventors: Kazuyuki KAMO; Iori FUKUSHIMA; Tomotsugu SUGIOKA; Kenichi ISHITSUKA
- Web page: https://patentgrep.com/patent/US20210340441A1

## CPC

- C08G 61/12: Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08L 65/00: Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C08L7/00 - C08L57/00, C08L61/00 take precedence); Compositions of derivatives of such polymers
- C09K 11/06: containing organic luminescent materials
- H05B 33/14: characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source}
- H10K 71/12: using liquid deposition, e.g. spin coating
- H10K 85/111: {comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene}
- C08G 2261/12: Copolymers
- C08G 2261/135: Cross-linked structures
- C08G 2261/1412: Saturated aliphatic units
- C08G 2261/146: Side-chains containing halogens
- C08G 2261/148: Side-chains having aromatic units
- C08G 2261/1642: comprising reactive double bonds or triple bonds
- C08G 2261/1644: comprising other functional groups, e.g. OH groups, NH groups, COOH groups or boronic acid
- C08G 2261/3162: Arylamines
- C08G 2261/411: Suzuki reactions
- C08G 2261/512: Hole transport
- C08G 2261/64: Solubility
- C08G 2261/92: TFT applications
- C09K 2211/1433: bridged by heteroatoms, e.g. N, P, Si or B
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/15: Hole transporting layers
- H10K 50/16: Electron transporting layers
- H10K 50/17: Carrier injection layers
- H10K 2101/10: Triplet emission
- Y02E 10/549: Organic PV cells
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

An organic electronic material that includes a charge transporting polymer which has a branched structure and has a structural unit having a structure represented by Formula (1).

## Claims

### Claim 1

An organic electronic material comprising:
a charge transporting polymer which has a branched structure and has a structural unit having a structure represented by Formula (1):
in the formula, Ar's each independently represent an aromatic ring group, Ra's each independently represent a hydrogen atom, a substituent, or a binding site with another structure, Rb's each independently represent a substituent, and n's each independently represent an integer of 0 or more, where at least one of Ra's is a binding site with another structure.

### Claim 2 (depends on 1)

The organic electronic material according to claim 1, wherein the structure represented by Formula (1) includes at least one selected from the group consisting of a structure represented by Formula (1B-1) and a structure represented by Formula (1 L-1):
in the formulas, * represents a binding site with another structure, Rc's each independently represent a hydrogen atom or a substituent, Rb's each independently represent a substituent, and n's each independently represent an integer of 0 to 4.

### Claim 3 (depends on 1)

The organic electronic material according to claim 1, wherein the charge transporting polymer further has a structural unit having at least one structure selected from the group consisting of an aromatic amine structure, a carbazole structure, a thiophene structure, a fluorene structure, a benzene structure, a pyrrole structure, an aniline structure, and a phenoxazine structure.

### Claim 4 (depends on 1)

The organic electronic material according to claim 1, wherein the charge transporting polymer has at least one polymerizable functional group.

### Claim 5 (depends on 4)

The organic electronic material according to claim 4, further comprising a polymerization initiator.

### Claim 6 (depends on 1)

The organic electronic material according to claim 1, wherein the charge transporting polymer is a hole transporting polymer.

### Claim 7 (depends on 1)

A liquid composition comprising:
the organic electronic material according to claim 1; and
a solvent.

### Claim 8 (depends on 1)

An organic layer which is formed using the organic electronic material according to claim 1.

### Claim 9 (depends on 8)

An organic electronic element comprising the organic layer according to claim 8.

### Claim 10 (depends on 8)

An organic electroluminescent element comprising the organic layer according to claim 8.

### Claim 11 (depends on 8)

An organic electroluminescent element comprising the organic layer according to claim 8 as a hole injection layer or a hole transport layer.

### Claim 12 (depends on 10)

A display element comprising the organic electroluminescent element according to claim 10.

### Claim 13 (depends on 10)

A lighting device comprising the organic electroluminescent element according to claim 10.

### Claim 14 (depends on 13)

A display device comprising:
the lighting device according to claim 13; and
a liquid crystal element as a display means.

### Claim 15 (depends on 1)

A method for manufacturing an organic electronic element, the method comprising forming an organic layer using the organic electronic material according to claim 1.