IP Library Granted Patent US 11,737,345
Granted Patent B2
US 11,737,345 · App. 17/068,931 · Granted Aug 22, 2023

Organic electronic material, ink composition containing same, and organic thin film, organic electronic element, organic electroluminescent element, lighting device, and display device formed therewith

Inventors: Shigeaki Funyuu (Tsukuba, JP); Kenichi Ishitsuka (Ibaraki, JP); Yousuke Hoshi (Ibaraki, JP)
Assignee: RESONAC CORPORATION
H10K85/111C08G61/12C08G61/124C08G73/0266C09D11/52C09D165/00C09K11/06H10K71/12H10K85/113H10K85/115H10K85/151C08G2261/131C08G2261/132C08G2261/135C08G2261/1424C08G2261/1434C08G2261/1644C08G2261/312C08G2261/3142C08G2261/3162C08G2261/3241C08G2261/354C08G2261/364C08G2261/411C08G2261/512C08G2261/76C09K2211/1425C09K2211/1433C09K2211/1466H10K50/11H10K50/15H10K50/17H10K50/82H10K77/111H10K85/1135H10K2102/311
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Quick Facts
Patent No.
US 11,737,345
App. No.
17/068,931
Granted
Aug 22, 2023
Kind
B2
Abstract

Provided are: an organic electronic material which can be easily multilayered and that can be used in substrates, such as resin, that cannot be processed at high temperatures; an ink composition containing the same; an organic thin film formed using said organic electronic material or said ink composition; and an organic electronic element and an organic EL element that are formed using said organic thin film and that have a superior luminous efficacy and emission lifespan than conventional elements. Specifically, provided are: an organic electronic material that is characterized by containing an oligomer or a polymer having a structure that branches into three or more directions and has at least one polymerizable substituent; an ink composition containing said organic electronic material; and an organic thin film prepared using the aforementioned organic electronic material. Further, provided are an organic electronic element and an organic electroluminescent element containing said organic thin film.

Claims (34)

1. An organic electronic material comprising a polymer or oligomer containing a polymerizable substituent, wherein the polymerizable substituent comprises at least one selected from the group consisting of an oxetane group, a vinyl group, an epoxy group, an acrylate group and a methacrylate group, and wherein a polydispersity of the polymer or oligomer is 3.5 or greater.

2. The organic electronic material according to claim 1 , wherein the polymer or oligomer has a structure branching in three or more directions.

3. The organic electronic material according to claim 1 , wherein the polydispersity of the polymer or oligomer is not more than 20.0.

4. The organic electronic material according to claim 1 , wherein the number average molecular weight of the polymer or oligomer is 3,000 or more.

5. An ink composition comprising the organic electronic material according to claim 1 .

6. An organic thin film produced using the organic electronic material according to claim 1 .

7. An organic electronic element comprising the organic thin film according to claim 6 .

8. An organic electroluminescent element comprising the organic thin film according to claim 6 .

9. A display element comprising the organic electroluminescent element according to claim 8 .

10. A lighting device comprising the organic electroluminescent element according to claim 8 .

11. A display device comprising the lighting device according to claim 10 , and a liquid crystal element as a display unit.

12. An organic thin film produced using the ink composition according to claim 5 .

13. An organic electronic element comprising the organic thin film according to claim 12 .

14. An organic electroluminescent element comprising the organic thin film according to claim 12 .

15. A display element comprising the organic electroluminescent element according to claim 14 .

16. A lighting device comprising the organic electroluminescent element according to claim 14 .

17. A display device comprising the lighting device according to claim 16 , and a liquid crystal element as a display unit.

18. An organic electronic material comprising a polymer or oligomer, wherein the polymer or oligomer comprises at least one of:

(i) a compound formed by a reaction including the following monomer 1, monomer 2, and monomer A as reactants:

(ii) a compound formed by a reaction including the following monomer 1, monomer 3, monomer 4, and monomer B as reactants:

(iii) a compound formed by a reaction including the following monomer 1, monomer 3, and monomer B as reactants:

(iv) a compound formed by a reaction including the following monomer 5, monomer 3, and monomer B as reactants:

(v) a compound formed by a reaction including the following monomer 6, monomer 3, and monomer B as reactants:

(vi) a compound formed by a reaction including the following monomer 7, monomer 3, and monomer B as reactants:

(vii) a compound formed by a reaction including the following monomer 8, monomer 3, and monomer B as reactants:

(viii) a compound formed by a reaction including the following monomer 1, monomer 9, and monomer B as reactants:

(ix) a compound formed by a reaction including the following monomer 1, monomer 9, monomer 10, and monomer B as reactants:

(x) a compound formed by a reaction including the following monomer 7, monomer 11, and monomer B as reactants:

(xi) a compound formed by a reaction including the following monomer 12, monomer 13, and monomer B as reactants:

(xii) a compound formed by a reaction including the following monomer 6, monomer 9, monomer 14, and monomer B as reactants:

and

(xiii) a compound formed by a reaction including the following monomer 6, monomer 15, and monomer B as reactants:

19. The organic electronic material according to claim 1 , wherein the number average molecular weight of the polymer or oligomer is from 7,800 to 1,000,000.

20. The organic electronic material according to claim 1 , wherein the polymer or oligomer comprises a structure containing one or more selected from an aromatic amine moiety, a carbazole moiety, and a thiophene moiety.

Assignments (4)
CHANGE OF ADDRESS Recorded Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
CHANGE OF NAME Recorded Mar 3, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 062946/0125 →
CHANGE OF NAME Recorded Mar 2, 2023
From: HITACHI CHEMICAL COMPANY, LTD.
To: SHOWA DENKO MATERIALS CO., LTD.
Reel/Frame 062917/0865 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2023
From: FUNYUU, SHIGEAKI; ISHITSUKA, KENICHI; HOSHI, YOUSUKE
To: HITACHI CHEMICAL COMPANY, LTD.
Reel/Frame 062847/0513 →
Priority Claims (1)
JP 2009-131931 · Jun 1, 2009 · national
Continuity (4)
Continuation 15873994 · Jan 18, 2018
Division 14724132 · May 28, 2015
Division 13375757
Related Publication 20210028366A1 · Jan 28, 2021