Dyketopyrrolopyrrole polymers for use in organic semiconductor devices
US-9221943-B2 · Dec 29, 2015 · US
Polymers, their preparation and uses
US9419233B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9419233-B2 |
| Application number | US-201313889308-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2013 |
| Priority date | Nov 10, 2003 |
| Publication date | Aug 16, 2016 |
| Grant date | Aug 16, 2016 |
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- Title
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Abstract
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A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R 1 is the same or different and represents a substituent.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition comprising: a polymer comprising an optionally substituted first repeat unit of formula (VII): wherein each R 2 is the same or different and represents a substituent; the R 2 groups may be linked to form a ring; bond (a) is bound to the 3-position of the repeat unit of formula (VII); and bond (b) is bound to the 6-position of the repeat unit of formula (VII); and, a phosphorescent dopant. 2. A composition according to claim 1 , wherein at least one R 2 is a solubilizing group. 3. A composition according to claim 1 , wherein each R 2 is the same or different and is selected from the group consisting of optionally substituted C 1-20 alkyl, optionally substituted C 1-20 alkoxy, optionally substituted aryl, and optionally substituted heteroaryl. 4. A composition according to claim 3 , wherein each R 2 is a C 4 -C 10 alkyl. 5. A composition according to claim 1 wherein the polymer comprises an optionally substituted aryl or heteroaryl second repeat unit. 6. An optionally substituted monomer of formula (VIII): wherein each R 2 is the same or different and represents a substituent; each X independently represents a polymerizable group; bond (a) is bound to the 3-position of the repeat unit of formula (VII); and bond (b) is bound to the 6-position of the repeat unit of formula (VII). 7. A monomer according to claim 6 , wherein each R 2 is the same or different and is selected from the group consisting of optionally substituted C 1-20 alkyl, optionally substituted C 1-20 alkoxy, optionally substituted aryl, and optionally substituted heteroaryl. 8. A monomer according to claim 6 , wherein each R 2 is a C 4 -C 10 alkyl. 9. An electroluminescent device comprising an anode, a cathode and an electroluminescent layer located between the anode and cathode wherein the electroluminescent layer comprises a polymeric host material comprising an optionally substituted first repeat unit of formula (VII) and a phosphorescent dopant: wherein each R 2 is the same or different and represents a substituent; the R 2 groups may be linked to form a ring; bond (a) is bound to the 3-position of the repeat unit of formula (VII); and bond (b) is bound to the 6-position of the repeat unit of formula (VII).
Assignees
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Classifications
derived from five-membered heterocyclic compounds · CPC title
Chemistry & Metallurgy · mapped topic
- H01L51/0094Primary
Electricity · mapped topic
Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule · CPC title
Compounds containing elements of Groups 4 or 14 of the Periodic Table · CPC title
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Frequently asked questions
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- What does patent US9419233B2 cover?
- A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R 1 is the same or different and represents a substituent.
- Who is the assignee on this patent?
- Cambridge Display Tech Ltd, Cambridge Entpr Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01L51/0094. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).