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| Number | Title | Issue Date |
| 8119778 | Reversibly thermochromic compositions A reversible thermochromic system comprising a) a compound of the formula (I) or a tautomer thereof (I) wherein R1 is C1-C18alkyl, C2-C18alkenyl, C3-C12cycloalkyl, C3-C12 | 02/21/2012 |
| 6709642 | Calixarene acetamido derivatives, preparation and use thereof for extracting strontium The invention concerns derivatives of calixarene having the formula: in which: R1 represents various hydrocarbon groups, R2 and R3 represent an alkyl, cycloalkyl or aryl gro... | 03/23/2004 |
| 6417178 | Amyloid binding nitrogen-linked compounds for the antemortem diagnosis of alzheimer's disease, in vivo imaging and prevention of amyloid deposits Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, suc... | 07/09/2002 |
| 6309807 | Disazo dye for thermal transfer recording and thermal transfer sheet and ink for thermal transfer recording, employing it A disazo dye for thermal transfer recording of the following formula (I): ##STR1## wherein each of rings A and B which are independent of each other, is a benzene ring which may have a substituent, R1 is a C1-4 substituted or unsubst... | 10/30/2001 |
| 5883235 | Calix4!arene compounds for detection of calcium Calix4!arene compounds are disclosed that can be used as active components in a calcium sensitive sensor. The compounds exhibit strong calcium ion binding selectivity over sodium and potassium ions and they are stable during sterilization.... | 03/16/1999 |
| 5827332 | Azo dyes and a method of making a hydrocarbon using an azo dye Azo dyes of the formula ##STR1## where the ring A may be benzofused, n is 0 or 1, and R1 -R8 are as defined, as pH-dependent markers for hydrocarbons, hydrocarbons containing the above-mentioned azo dyes, and a method for detecting t... | 10/27/1998 |
| 5782934 | Process of dyeing with disazo dyes containing a fluorosulphonyl group and use thereof A process for colouring a synthetic textile material or fiber blend thereof which comprises applying to the synthetic textile material a compound of Formula (1): A--N.dbd.N--D--N.dbd.N--E Formula (1) wherein: A, D and E each in... | 07/21/1998 |
| 5747345 | Calcium specific diaza-18-crown-6-ether chromoionophores Diaza-18-crown-6 compounds of the formula I: ##STR1## wherein X is a phenol, naphthol or quinolinol moiety selected from those of the formulae: ##STR2## R1, R2, R3, R4 and R5 are independent... | 05/05/1998 |
| 5737871 | Method of preparing and utilizing petroleum fuel markers Compounds known as "solid dispersed dyes" are synthesized in a two-phase system from which they disproportionate into a water-immiscible solvent phase, providing marker solutions. Marker solution is added to a petroleum fuel to introduce the compound ther... | 04/14/1998 |
| 5705620 | Sensors for detecting calcium with calix 4! arene compounds A calix4!arene compound, application of the compound as an active component in a calcium sensitive sensor, and a calcium sensitive sensor containing the compound. The sensor is not very sensitive to sodium and potassium ions.... | 01/06/1998 |
| 5567470 | Heat-sensitive transfer sheet containing blue dyestuff A blue dyestuff represented by the formula (2) ##STR1## wherein each of R1, R2 and R3 is independently a hydrogen atom, halogen atom, nitro group, hydroxy group, alkyl group which may have a substituent, alkoxy group,... | 10/22/1996 |
| 5550218 | Azo compounds having unsubstituted or substituted 2-phenoxycarbonylethyl groups Compounds of the formula ##STR1## wherein A is C1-6 alkylene, D is a diazo component radical of the triazolyl, pyrazolyl, cyano(C1-4 alkyl)-imidazolyl, 4-chlorothiazolyl, 4-chlorotheinyl-2, 3-phenyl-1,2,4-thiadiazolyl-5, is... | 08/27/1996 |
| 5420258 | Disazo dyes containing a hydroxybenzene or alkoxybenzene middle component Azo dyes of formula ##STR1## wherein R1, R2, R3, R4, R5, R6, X, Y and n are as defined in claim 1, give dyeings of good fastness properties on nitrogen-containing or hydroxyl group con... | 05/30/1995 |
| 5354512 | Dye-containing polarizing film A dye-containing polarizing film comprising a polarizing film material and a metal-containing dye represented by the following formula (I): ##STR1## wherein Me is a transition metal selected from copper, nickel, zinc and iron; Z is hydrogen, lower al... | 10/11/1994 |
| 5334435 | Ink-jet recording liquids A recording liquid for ink-jet recording comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving the coloring matter therein. The liquid medium is ethanol and the coloring matter is a dye represented by the foll... | 08/02/1994 |
| 5332806 | Disazo dyes which contain 2-hydroxynaphthyl moiety Azo dyes of the formula ##STR1## where A and B are each independently of the other substituted or unsubstituted phenyl or naphthyl and X is --N(R1)--SO2 --, --O--SO2 -- or --SO2 --N(R1)--, where ... | 07/26/1994 |
| 5312906 | Optical information recording media and bisazo compounds for use therein Bisazo compounds of formula (I), an intermediate for producing the bisazo compound of formula (I), and trisazo compounds of formula (II) for use in optical information recording media, and methods of producing these compounds are disclosed: ##STR1## ... | 05/17/1994 |
| 5247071 | Preparation of acetalized azo dyes Acetalized azo dyes are prepared by diazotizing an amine, coupling with a hydroxyalkyl-containing coupling component and subsequently reacting with a vinyl ether in a process which comprises carrying out the coupling reaction in a two-phase reaction mixtu... | 09/21/1993 |
| 5243033 | Fiber-reactive disazo and tetrakisazo halotriazinyl dyes Reactive dyes of the formula ##STR1## in which R1, R2 and R3, independently of one another, are C1 -C4 alkyl, C1 -C4 alkoxy, halogen, ureido, C1 -C4 ac... | 09/07/1993 |
| 5204454 | Prepolymeric polyols containing mesogenic units Prepolymer polyols containing mesogenic moieties useful as reactants for the preparation of resinous materials are disclosed. Synthesized by condensing a polyether polyol with bifunctional mesogenic diacids, or diesters, the compounds of the invention are... | 04/20/1993 |
| 5104572 | Azo compound and liquid crystal composition containing the same A novel azo compound, which has a high dichroic ratio as well as a high solubility in liquid crystals, and a liquid crystal composition containing the same as disclosed. The liquid crystal composition enables an excellent and clear color display.... | 04/14/1992 |
| 5075429 | Monoazo-disperse dye compounds their production and their use A monoazo compound of the formula, ##STR1## wherein D is a heterocyclic or carbocyclic compound residue such as benzothiazolyl and phenyl, X is hydrogen, alkyl, alkoxy, halogeno, acylamino or the like, Y is hydrogen, halogeno, alkyl, alkoxy and the ... | 12/24/1991 |
| 5037967 | N-phenoxyalkylene anilines as coupling components Disperse dyes containing a monoazo coupling component of the formula ##STR1## in which X is hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy, acylamino, halogen or a group of the formula --NH--CO--NHQ in which Q is hy... | 08/06/1991 |
| 5006128 | Substituted 2,4-di[4'-(disulfonaphth-2"-ylazo)phenylamino]-6-amino-1,3,5-triazines Compounds of the formula ##STR1## and salts thereof, wherein R1 is hydrogen or methyl, R2 is hydrogen, methyl or acetamido, R3 is hydrogen, methyl or methoxy, R4 is hydrogen, C1-4 alkyl or hydroxy(C2-... | 04/09/1991 |
| 4956255 | Photosensitive member The present invention relates to a photosensitive member containing a specific azo compound represented by the following general formula [I]; ##STR1## wherein A is a bivalent group of a condensed poly-cyclic ring which may have a substituent, a pyrid... | 09/11/1990 |
| 4952678 | Trisazo dyes Trisazo dyes of the formula ##STR1## where R1, R2, R3 and R4 are identical or different and each, independently of the others, is hydrogen, methyl, ethyl, methoxy or chlorine, R5 is C2... | 08/28/1990 |
| 4910299 | Disperse azo dyes containing N-phenoxyalkyleneanilines as coupling components Disperse dyes suitable for dyeing textile material composed of polyester dyes of the formula ##STR1## in which D is the radical of a substituted or unsubstituted, homocyclic or heterocyclic diazo component belonging to the series comprising thienyl, ... | 03/20/1990 |
| 4876333 | ଲ-crystalline modification of diasazo acid dyestuff A crystalline modification, designated "ଲ", of the dye of the structure ##STR1## The ଲ-crystalline modification of the dye is easier to isolate from water and gives filter cakes of higher solids and color content. The ଲ-form is... | 10/24/1989 |
| 4749784 | Alkanol substituted disazo orange dye for nylon The specification describes a new group of alkanol substituted disazo compounds that are useful in dyeing polyamide textile fibers in orange hues. The new compounds are compatible with several acid blue dyes and several acid red dyes that are commercially... | 06/07/1988 |
| 4725674 | Water soluble monoazo and disazo compounds containing (diphenylamino)-amino-chlorotriazinylamino group substituted by a nitro group and a fibre-reaction group of the vinylsulfone series, suitable as dyestuffs Water-soluble monoazo and disazo compounds which have fiber-reactive dyestuff properties and containing as diazo component an optionally substituted phenyl radical or naphthyl radical or an optionally substituted phenylazophenyl, phenylazonaphthyl, naphth... | 02/16/1988 |
| 4721779 | Trisazo dyes containing naphthalene or quinoline units and their use in liquid crystal materials Trisazo compounds of the formula ##STR1## where Z is ##STR2## X and Y independently of one another are each C1 -C24 -alkoxy, benzyloxy, phenylethoxy, mono-C1 -C24 -alkylamino, monobenzylamino, mon... | 01/26/1988 |
| 4703113 | Water-soluble triazine black dyes free from cellulose reactive groups and suitable for use in inks A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R1 is --(Ca H2a O)m (Cb H2b O)n H, R2 is H or --(Ca H2a | 10/27/1987 |
| 4668774 | 2-ethylhexylamine salts of anionic monoazo dyes Novel dye salts of anionic dyes of the general formula I ##STR1## where F is a radical of an anionic dye, n is 1, 2, 3 or 4, and B1 and B2 independently of one another are each unsubstituted or substituted branched alkyl or alky... | 05/26/1987 |
| 4652269 | Process for the continuous trichromatic dyeing of synthetic polyamide materials: including a blue anthraquinone reactive dye Process for the continuous trichromatic dyeing of synthetic polyamide materials which comprises using at least one blue-dyeing fibre-reactive sulfo-containing anthraquinone dye together with at least one red-dyeing sulfo-containing azo dye and at least on... | 03/24/1987 |
| 4618674 | Red-1-(cyanophenylazo- or cyano, halophenylazo)-2-amino-8-hydroxynaphthalene-6 sulfonic acid dyestuffs Red monoazo dyestuffs from diazotized 1-aminobenzonitrile or 1-amino-4-, 5- or 6-halo-benzonitrile and 2-amino-8-hydroxynaphthalene-6-sulfonic acid. These dyes are particularly distinguished by their good migration and leveling properties and excellent fa... | 10/21/1986 |
| 4582771 | Disazo compound, method for preparing the same, and electrophotographic element containing the same for use in electrophotography This invention relates to a disazo compound, a method for producing said disazo compound and an electrophotographic element containing said disazo compound, said disazo compound has the general formula (I), ##STR1## wherein Y represents a substituted... | 04/15/1986 |
| 4579561 | Process for trichromatic dyeing polyamide fibers A trichromatic dye system for the dyeing of synthetic polyamide fibers, the system including an acid red dye component, an acid blue dye component, and an acid yellow dye component, each of the dye components being compatible from a performance standpoint... | 04/01/1986 |
| 4567171 | Stable, concentrated, liquid dispersions of anionic dyestuffs A composition and a process for the production of stable, water dispersions of anionic dyestuffs, for example acid or direct dyestuffs, useful for the dyeing of organic fibers including paper. Highly concentrated, liquid dispersions of at least 15-40% by ... | 01/28/1986 |
| 4562249 | Bis(4-((chloro substituted phenyl)azo)anilino methylenes There are described novel yellow to red azo compounds of the formula I ##STR1## wherein each D independently of the other is the radical of an aromatic or heterocyclic diazo component, each Z independently of the other is hydrogen or a C1 ... | 12/31/1985 |
| 4540651 | Electrophotographic photosensitive member There is disclosed an electrophotographic photosensitive member comprising a photosensitive layer comprising a combination of a carrier generating layer and a carrier transporting layer provided on an electroconductive support, the carrier generating laye... | 09/10/1985 |
