Materials for organic electroluminescent devices
US-9515266-B2 · Dec 6, 2016 · US
Fullerene derivative, and method of preparing the same
US9196843B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9196843-B2 |
| Application number | US-201313906920-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2013 |
| Priority date | Jul 17, 2012 |
| Publication date | Nov 24, 2015 |
| Grant date | Nov 24, 2015 |
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Abstract
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A fullerene derivative having 60 or more carbon atoms includes at least one structure having the following formula (I): wherein R 1 , R 2 and R 3 independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group and a substituted or unsubstituted monofunctional heterocyclic group; and at least one of R 1 , R 2 and R 3 comprises the following formula (II): wherein R 4 represents a substituted or unsubstituted alkyl group having 4 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 4 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 4 to 30 carbon atoms or a substituted or unsubstituted aralkyl group having 4 to 30 carbon atoms.
First claim
Opening claim text (preview).
What is claimed is: 1. A fullerene derivative having 60 or more carbon atoms and at least one structure having the following formula (I): wherein R 1 , and R 3 independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstitu…
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Classifications
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
- C07D209/96Primary
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
- H01L51/0067Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9196843B2 cover?
- A fullerene derivative having 60 or more carbon atoms includes at least one structure having the following formula (I): wherein R 1 , R 2 and R 3 independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group and a substituted or unsubstituted…
- Who is the assignee on this patent?
- Yanagawa Yoshiki, Ricoh Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07D209/96. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 24 2015 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).