Heteroaromatic isothiocyanates
US-2024124779-A1 · Apr 18, 2024 · US
Liquid crystal compound containing cyclopentyl and difluorometheneoxy linking group, preparation method and application thereof
US9303208B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9303208-B2 |
| Application number | US-201314388676-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 18, 2013 |
| Priority date | Mar 27, 2012 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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- Title
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- Abstract
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Abstract
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This invention relates to liquid crystal compounds of formula I containing cyclopentyl group and difluoromethyleneoxy linking group. Liquid crystal compounds of formula I have a large dielectric anisotropy, high clearing points, and a fast response speed, thereby having great significance to formulate a liquid crystal mixture.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound of formula II: Formula II wherein A is selected from at least one of 1,4-cyclohexylidene, 1,4-phenylene, and fluoro-substituted 1,4-phenylene, and B is selected from at least one of 1,4-phenylene, and fluoro-substituted 1,4-phenylene; p is 0 or 1; o is 1 or 2, and —(F) represents F or H. 2. The compound according to claim 1 , wherein the compound of formula II is selected from at least one of formulas II1 to III13: 3. A liquid crystal mixture, liquid crystal display device material, or electro-optical display device material comprising the compound of claim 1 .
Assignees
Inventors
Classifications
- C09K19/3003Primary
Compounds containing at least two rings in which the different rings are directly linked (covalent bond) · CPC title
containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings · CPC title
Cy-Ph · CPC title
- C07C43/225Primary
containing halogen · CPC title
the ring being saturated · CPC title
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Frequently asked questions
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- What does patent US9303208B2 cover?
- This invention relates to liquid crystal compounds of formula I containing cyclopentyl group and difluoromethyleneoxy linking group. Liquid crystal compounds of formula I have a large dielectric anisotropy, high clearing points, and a fast response speed, thereby having great significance to formulate a liquid crystal mixture.
- Who is the assignee on this patent?
- Shijiazhuang Chengzhi Yonghua Display Materials Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K19/3003. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 05 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).