Fluorene derivatives and polymers thereof
US7381350B2 · kind B2 · utility
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2References
27Claims
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Key dates
| Filing date | Jul 8, 2005 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Jul 25, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/3416
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The compound (1) or (2), a composition containing the compound and a polymer obtained by polymerizing the composition.R1 is fluorine, cyano, alkyl, and so forth; R2 is hydrogen, alkyl, and so forth; R3 and R4 are independently hydrogen, fluorine, alkyl, and so forth; A is 1,4-cyclohexylene, 1,4-phenylene, and so forth; X is a single bond, —COO—, —OCO—, and so forth; P is alkylene and so forth; m and n are independently 0, 1 or 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.