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| Number | Title | Issue Date |
| 8110714 | Polyacene compound and organic semiconductor thin film The present invention provides an organic semiconductor material which exhibits a high mobility, and excellent solubility in solvents and oxidation resistance. The present invention also provides an organic semiconductor thin film exhibiting a high mobility, and an ... | 02/07/2012 |
| 8084654 | Manufacturing process for iodinated aromatic compounds Disclosed is a method for preparing an iodinated aromatic compound. More specifically, disclosed is a method of preparing an iodinated aromatic compound by iodinating an aromatic compound in the presence of oxygen over a zeolite catalyst, in which the aromatic compo... | 12/27/2011 |
| 7973203 | Method for substituting indenofluorenes The invention relates to a process for the preparation of trans-indenofluorene compounds of the formula (Ia) or cis-indenofluorene compounds of the formula (Ib) in a reaction with at least one compo... | 07/05/2011 |
| 7635792 | 2,5-linked polyfluorenes for optoelectronic devices Polyfluorene polymers and copolymers having substantial amounts (10-100%) of fluorenes coupled at the 2 and 5 positions of fluorene are useful as active layers in OLED devices where triplet energies >2.10 eV are required. ... | 12/22/2009 |
| 7399505 | Fluorinated phenanthrenes and their use in liquid-crystal mixtures Compounds of the formula (I) are described in which M1 is, for example, —CO—O— or a single bond A1 is, for example, 1,4-phenylene, ... | 07/15/2008 |
| 7361133 | Methods of detection utilizing modified bacteriophage Viruses expressing ligands on their surfaces are used as a detection means for the related polypeptide which binds the ligand. Multiple copies of the ligand can be expressed on the viral surface. These viruses may be used to detect polypeptides, cells, receptors and... | 04/22/2008 |
| 7358406 | Electroluminescent fluorinated pyrenes, and devices made with such compounds This invention relates to electroluminescent fluorinated pyrene compounds. It also relates to electronic devices in which the active layer includes an electroluminescent fluorinated pyrene compound. ... | 04/15/2008 |
| 7318950 | Chiral compounds II The invention relates to chiral compounds of formula (I) R1—X1-(A1-Z1)m-G-(Z2-A2)n-X2—R2, wherein R1, R2, X1, X2 | 01/15/2008 |
| 7297378 | Fluorinated fused aromatics and their use in liquid-crystal mixtures Compounds of the formula (I) in which R1, R2, p, q, G and X are each as defined in the description, use of compounds of the formula (I) in liquid-crystal mixtures, | 11/20/2007 |
| 7297379 | Polyfluorinated fused aromatics and their use in liquid-crystal mixtures A compound of the formula (I) is described where R1 and R2 are defined in the specification and p=q=r=0 or 1 with p+q+r≠0. The compound of formula (I) has high dielectric anisotropy, th... | 11/20/2007 |
| 7291366 | Cyclopenta[b]naphthalene derivatives The present invention relates to cyclopenta[b]naphthalene derivatives of the general formula (I) in which Z, A, n, R, L5 and L8 as (II) and (III) are as defined in Claim 1, to the use thereof in liquid-crystalline or mesogenic media, to liquid-... | 11/06/2007 |
| 7282246 | Fluorinated xanthenes and use thereof in liquid-crystal mixtures Concerning the compound of the formula (I) R1, R3 are each independently, for example, H R2, R4 are each independently, for ex... | 10/16/2007 |
| 7270856 | Cyclobutane derivatives The invention relates to novel cyclobutane derivatives of the formula (I), in which R1, R2, A, Z, m, n and o have the meaning indicated in claim 1, to the use thereof as components of liquid-crystalline media, and to liquid-crystal and e... | 09/18/2007 |
| 7255900 | Fluorinated heterocycles and their use in liquid-crystal mixtures In the compound of the formula (I), where: R1, R2 are each independently, for example, H or a straight-chain or branched alkyl radical p, q are each independently 0... | 08/14/2007 |
| 7232592 | Nematic liquid crystal composition containing indane compound The present invention provides a nematic liquid crystal composition using a 4,6-difluoroindane-based compound that has a low lower limit temperature (T→N) of the liquid crystal phase, high upper limit temperature (TN-I) of the liquid crystal ... | 06/19/2007 |
| 7214835 | 1,7,8-Trifluoronaphthalene-2-naphthol, and method for producing liquid crystal compound using same The present invention provides 1,7,8-trifluoro-2-naphthol and a derivative thereof as intermediates for efficiently producing a trifluoronaphthalene liquid crystal material. A method for efficiently producing a trifluoronaphthalene liquid crystal material using such... | 05/08/2007 |
| RE39532 | Metallocenes containing ligands of 2-substituted indenyl derivatives, process for their preparation, and their use as catalysts The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alky... | 03/27/2007 |
| 7182885 | Fluorinated indenes and 1,7-dihydroindacenes of negative dielectric anisotropy Fluorinated indenes and 1,7-dihydroindacenes of the general formulae (I) and (II) of negative dielectric anisotropy (Δε | 02/27/2007 |
| 7157124 | Polymerizable compounds and their polymers A compound represented by formula (1) or (2) and a polymer obtained by polymerizing the compound are provided: wherein Ra is one of the groups represented by Formulas (3-1) to (3-5); Rb is h... | 01/02/2007 |
| 7145047 | Naphthalene derivative and liquid crystal composition comprising the same Disclosed in a novel liquid-crystalline compound which is a naphthalene derivative useful as an electro-optical liquid crystal display material, a liquid crystal composition containing such naphthalene derivatives and a liquid crystal display device comprising the s... | 12/05/2006 |
| 7125589 | Liquid crystal compound having hydrogen as a terminal group, composition comprising the compound, and liquid crystal display element comprising the composition A compound represented by the following formula (1), a composition comprising the composition and an element comprising the composition: Ra is alkyl having 1 to 15 carbons and so forth; A1, A2 | 10/24/2006 |
| 7122228 | Compound having negative Δε The invention relates to indanes having negative Δε of the formula Ia or Ib in which R, A, Z, X, Y, V, W, n and m are as defined in claim 1. The compounds are particularly suitable for producing VA-TFT ... | 10/17/2006 |
| 7105467 | Nickel catalyzed cross-coupling reactions between organomagnesium compounds and anisole derivatives The present invention provides nickel catalysts and solvents which are useful in a cross-coupling reaction between an organomagnesium compound and an aromatic ether compound, such as an anisole derivative. ... | 09/12/2006 |
| 7102023 | Protecting groups useful in the synthesis of polysaccharides, natural products, and combinatorial libraries One aspect of the present invention relates to optionally substituted halogenated benzyl halides and the like. These compounds are useful as halogenated benzyl ether-based protecting groups for a variety of functional groups. Another aspect of the present invention ... | 09/05/2006 |
| 7087272 | Fluorinated fluorene derivatives The invention relates to fluorinated fluorene derivatives of negative DC anisotropy, of the formula I R1—(—A1—Z1—)k1—(—A2—Z2—)k2—W—(—Z3—A3 | 08/08/2006 |
| 7070838 | Liquid crystalline compound, liquid crystal composition and their polymers The present invention provides a compound represented by formula (1) defined in the specification and a liquid crystal composition comprising the compound. The invention further provides a polymer obtained by polymerization of compound or composition above, and furt... | 07/04/2006 |
| 7067179 | Fused ring compound A novel compound represented by the general formula (I), and a nematic liquid crystal composition incorporating the same. A compound represented by the general formula (I) can be produced industrially extremely e... | 06/27/2006 |
| 7026021 | Fluorinated heterocycles and their use in liquid-crystal mixtures Compounds of the general formula (I) where: R1, R2 are each independently a) H b) -M1-A1-R5 | 04/11/2006 |
| 7014890 | Fluorinated naphthalenes, liquid-crystal mixtures comprising them, and liquid-crystal displays Compounds of the formula (I) in which the parameters are as defined herein, are suitable for use in liquid-crystal media and liquid-crystal displays which contain these media. ... | 03/21/2006 |
| 6974877 | Process for preparing pentacene derivatives A process for preparing substituted pentacene compounds comprises the step of cyclizing substituted bis(benzyl)phthalic acids using an acid composition comprising trifluoromethanesulfonic acid, the substituted bis(benzyl)phthalic acids being represented by the follo... | 12/13/2005 |
| 6963017 | Preparation of preparing substituted indanones A process for the preparation of indanones of the formula II from indanones of the formula I or of indanones of the formula IIa from indanones of the formula Ia comprises reacting an indanone of the formula I or Ia wit... | 11/08/2005 |
| 6943257 | Process for preparation of aromatic halides from aromatic amines The present invention provides a process for preparing an aromatic bromide or aromatic iodide from an aromatic amine derivative using nitrite anion and halodimethylsulfonium halide generated in situ from hydrobromic acid/DMSO or hydriodic acid/DMSO. The process for ... | 09/13/2005 |
| 6933063 | Spirobifluorene compounds, electroluminescence polymer and electroluminescence element having the same Provided are spirobifluorene compounds which can provide excellent processibility with improved solubility in organic solvents, an electroluminescence (EL) polymer obtained therefrom and an EL element having the same. The EL polymer comprising repeating units of the... | 08/23/2005 |
| 6887533 | Fluorinated oxaanthracenes and their use in liquid-crystal mixtures Compounds of the formula (I) where: X1 is H or F G1-G2 is —CH2—CH— or CH═C— R1, R | 05/03/2005 |
| 6875895 | Bis (diphenylvinyl) arene compound Provided is a bis(diphenylvinyl)arene compound having a reactive functional group on phenyl group, represented by below formula (1), wherein, Ar is an arylene group and has one or more substituents; R1-R | 04/05/2005 |
| 6864396 | Substituted pentacene semiconductors Substituted pentacene compounds comprise at least one substituent selected from the group consisting of electron-donating substituents, halogen substituents, and combinations thereof; the substituent(s) each being bonded to a carbon atom of a terminal ring of pentac... | 03/08/2005 |
| 6812311 | Highly stable packaging substrates A method of producing a highly stable packaging substrate in which are provided a first precursor having a first backbone and a first ethynyl group, and a second precursor having a second backbone and a second ethynyl group. Furthermore provided is a crosslinker hav... | 11/02/2004 |
| 6759103 | Fluorinated cyclopenta[b]naphthalenes and their use in liquid-crystal mixtures The invention relates to compounds of the formula (I) and also liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays: in which R1 is H, F, CF3, OCF... | 07/06/2004 |
| 6746728 | Compound having tetrahydronaphthalene skeleton and liquid crystal composition containing same A tetrahydronaphthalene derivative represented by the general formula (I) and a liquid crystal composition containing the same. A compound represented by the general formula (I) shows superior liquid crystallinity and co... | 06/08/2004 |
| 6737125 | Fluorinated cyclopenta[a]naphthalenes and their use in liquid-crystal mixtures Compounds of the formula (I), liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays: in which R1 is H, F, CF3, OCF3, OCF2H, OCFH | 05/18/2004 |
