IP Library › Granted Patent US 8,217,181
Granted Patent B2
US 8,217,181 · App. 12/793,899 · Granted Jul 10, 2012

Dihalogen indolocarbazole monomers and poly (indolocarbazoles)

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Quick Facts
Patent No.
US 8,217,181
App. No.
12/793,899
Granted
Jul 10, 2012
Kind
B2
Abstract

Monomers and polymers based on dihalogen indolocarbazole and poly(indolocarbazoles), and methods of making such and using the same are described, as well as organic electronic devices incorporating the same.

Claims (8)

1. A monomer having Formula I or II:

wherein:

R 1 is 2′ ethylhexyl, or 2-[2-(2-methoxyethoxy)ethoxy]ethyl.

2. The monomer of claim 1 , wherein R 1 is 2′ethylhexyl.

3. The monomer of claim 1 wherein R 1 is 2-[2-(2-methoxyethoxy)ethoxy]ethyl.

4. A material comprising a monomer of claim 1 .

5. A compound of the formula

where R1 is H.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: LG CHEM, LTD.
Reel/Frame 050150/0482 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2019
From: WANG, HAILIANG
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 048410/0861 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2019
From: WANG, HAILIANG
To: DUPONT DISPLAYS, INC.
Reel/Frame 048411/0567 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2019
From: DUPONT DISPLAYS, INC.
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 048411/0780 →