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| Number | Title | Issue Date |
| 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 |
| 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 |
| 5756693 | Disazo Compound A compound of the Formula (1) and salts thereof: ##STR1## wherein: A is optionally substituted phenyl or optionally substituted naphthyl; R1 is NR4 R5 ; R2 is H, halo, --COOH, --SO2 0H, optionally sub... | 05/26/1998 |
| 5676708 | Non-mutagenic dye A dye composition that presents lower mutagenic characteristics useful in coloring petroleum products comprising a substantial amount of the dye of the formula ##STR1##... | 10/14/1997 |
| 5663309 | Diazo dyes having a phenylene group as the middle component and a naphthalene group as the terminal diazo component Azo dyes of the formula ##STR1## in which R1 is hydrogen or substituted or unsubstituted phenylamino, R2 is hydrogen, amino or N-mono- or N,N-di-C1 -C4 alkylamino, R3 is hydrogen or hydroxyl, R4 | 09/02/1997 |
| 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 |
| 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 |
| 5278291 | Hydroxyethylthio hydroxyethylamino-phenyl-azo and -azoxy dyestuffs A process for the preparation of the sulphone of the formula ##STR1## consists in reductive cleavage of azo/azoxy dyestuffs of the formula ##STR2## where D is a radical of a diazo component from the benzene or naphthalene series. The invention a... | 01/11/1994 |
| 5145953 | Monomers of biscyclobutarenes bridged by at least one azo linkage A biscyclobutarene monomer is prepared having two cyclobutarene moieties bridged by a divalent radical having at least one azo linkage. The monomers can be polymerized to form polymers exhibiting outstanding thermooxidative stability at high temperatures ... | 09/08/1992 |
| 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 |
| 5101020 | Novel radio labeled dyes for detecting proteins in gels Novel radio labeled dyes are provided for detecting proteins on gels.... | 03/31/1992 |
| 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 |
| 4965345 | Solvent azo dyes having carboxylic acid functions Solvent dyes of the formula ##STR1## where ##STR2## R1 and R2 are each, independently of the other, hydrogen, methyl, ethyl, methoxy or ethoxy, n is 0 or 1 and k, if n is 0, is the radical of a coupling component of the pyr... | 10/23/1990 |
| 4956457 | Disazo disulfonamides compounds The new azo compounds are represented by the following general formula I ##STR1## Wherein R and R1 are hydrogen, --COCR34 --COCHR24, --SO2 CH3, --CO2 C2 H | 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 |
| 4904765 | Dye mixtures containing an oil-soluble dye and an acid-extractable dye Dye mixtures contain an oil-soluble dye and a dye of the formula ##STR1## where D is phenyl which is unsubstituted or substituted by methyl or methoxy, R is hydrogen or methyl, R1 is hydrogen or C1 -C4 -alkyl and R | 02/27/1990 |
| 4863910 | Complexes of AZO compounds and/or their salts and an antitumor agent and a method for reducing the growth of tumors A complex of an azo compound of the formula ##STR1## wherein R and R' are selected from the group consisting of hydrogen, --COCR43, --COCHR24, --CO2 C2 H5, --CH2 ... | 09/05/1989 |
| 4841030 | Azo reactive dyestuffs They are useful for dyeing and printing materials containing hydroxyl groups or amide groups.... | 06/20/1989 |
| 4841037 | Amino sulfonaphtholtrisazo compounds and recording liquids containing the same A naphthalene trisazo compound represented by the general formula (I) or (II): ##STR1## wherein A and B each represents a substituted or unsubstituted benzene or naphthalene ring; m represents zero or 1; and M represents an alkali metal atom, am... | 06/20/1989 |
| 4743523 | Photosensitive member for electrophotography A photosensitive member for electrophotography comprising a photosensitive layer containing an azo pigment selected from those represented by the following formulas (1)-(6): ##STR1## wherein R is an alkyl, aralkyl, aryl, or acyl each capable of havin... | 05/10/1988 |
| 4734218 | Dichroic azo dyestuffs and liquid crystal composition containing said dyestuffs Provided are novel dichroic azo dyestuffs, which contain skeletons represented by the following general formula: ##STR1## at one terminals of the long axes of the molecules of the azo dyestuffs, and liquid crystal compositions containing the dichroic... | 03/29/1988 |
| 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 |
| 4704452 | Azo dyes containing aralkyl-nitrophenyl diazo components Monoazo compounds of the formula ##STR1## in which one of the two substituents R1 or R2 or both substituents are C3 -C8 -alkyl or a group of the formula ##STR2## in which R3 and R4 | 11/03/1987 |
| 4698421 | Fiber-reactive disazo brown dye having vinylsulfone-type reactive group A compound, or a salt thereof, represented by the following formula, ##STR1## wherein A is a substituted or unsubstituted phenylene or naphthylene group, B is ##STR2## in which R3 is a hydrogen atom or a lower alkyl, lower alkoxy, ... | 10/06/1987 |
| 4676923 | Dichroic dyestuffs for liquid crystal and liquid crystal composition New dichroic dyestuffs for the guest-host type liquid crystal and new liquid crystal compositions containing said dyestuff having an excellent improved dichroism and being prepared by introducing at least one group selected from the group consisting of ph... | 06/30/1987 |
| 4663440 | Bisazo brown reactive dye A brown reactive dye represented by a free acid of the formula, ##STR1## wherein R is a hydrogen atom or a C1 to C4 alkyl group, X is --SO2 CH2 CH2 Cl, --SO2 CH.dbd.CH2, --SO | 05/05/1987 |
| 4645832 | Cellulose fiber-reactive disazo or trisazo dyes having a triazine ring substituted by A(B-sulfatoethyl) sulfonylanilino group Reactive azo dyes represented by the general formula (I) or (II): ##STR1## wherein M is a hydrogen atom or an alkali metal, R1 is a hydrogen atom, a chlorine atom, a lower alkyl group, a lower alkoxy group, a nitro group or a carboxyl grou... | 02/24/1987 |
| 4557761 | Recording liquid A recording liquid comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving or dispersing the coloring matter, the recording liquid being characterized by containing at least one of the dyes represented by the fo... | 12/10/1985 |
| 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 |
| 4377519 | Navy blue water-soluble sulfophenyl- or sulfonaphthyl-azo-1,4-phenylene-azo-5-(8-anilinonaphthalene-1-sulfonic acid) dyes for polyamides Water-soluble dyes of the structure ##STR1## wherein D is a benzene group or a naphthylene group, A is H, Cl, Br, lower alkyl, or lower alkoxy B is H, lower alkyl, or lower alkoxy, B1 is lower alkyl or lower alkoxy, R is H, Cl, Br, lower alkyl, or l... | 03/22/1983 |
| 4359513 | Electrophotographic light-sensitive disazo compounds having diphenylacrylonitrile group An electrophotographic light-sensitive medium is described comprising a light-sensitive layer containing a dis-azo compound represented by Formula (1) ##STR1## wherein A represents a coupler having aromatic properties.... | 11/16/1982 |
| 4344880 | Disazo dyestuffs having an acylamino group and an aromatic-oxy group on different terminal moieties Disazo dyes of the general formula I ##STR1## where R is an araliphatic or aromatic radical, X1 is ##STR2## X2 is hydrogen, phenyl or an aliphatic or araliphatic radical, R1 is hydrogen or an aliphatic, cycloalip... | 08/17/1982 |
| 4338092 | Disazo compounds having a 4,6,8-trisulfonaphthyl diazo components radical and a 2-amino or substituted amino-4-chloro-1,3,5-triazin-6-yl-amino substituent Compounds of the formula ##STR1## in which each of R1 and R3, independently, is hydrogen, methyl, methoxy or --NHCOR6, each of R2 and R4, independently, is hydrogen, methyl or methoxy, with the p... | 07/06/1982 |
| 4329282 | Fluoro-triazine-containing fibre-reactive disazo dyestuffs Fibre-reactive disazo dyestuffs of the formula ##STR1## wherein R1 to R4, R5, R6 and n have the meaning indicated in the description and their use for dyeing and printing materials containing hydroxyl groups ... | 05/11/1982 |
| 4322529 | Tertiary-alkylamine salts of azine dyestuffs New dyestuff salts of the formula ##STR1## wherein A denotes the radical of an azine dyestuff, R, R1 and R2 denote alkyl radicals with a total of 10-24 carbon atoms and n denotes the number 1-4. The dyestuff salts show excellent... | 03/30/1982 |
| 4315756 | Oil-soluble azo dye with N-substituted ଲ-naphthylamine as coupling component Monoazo and disazo dyes having an unsubstituted or substituted aniline or p-aminoazobenzene as diazo component and an N-substituted ଲ-naphthylamine of six to eighteen carbon atoms in the N-substituent as coupling component. Preferred diazo component... | 02/16/1982 |
| 4287121 | Water-soluble polyfluoro acid azo dyestuffs A compound having the formula: ##STR1## wherein X represents a --SO3 H or PO3 H2 Y represents hydrogen, chlorine, alkyl, alkoxy or nitro, Z represents hydrogen, B represents a p-phenylene or 1,4-naphthylene unsubstituted or sub... | 09/01/1981 |
| 4285864 | Disulfonic phenyl-azo-naphthyl-azo-phenyl alkoxy dyes for polyamides New compounds having the structure: ##STR1## (wherein R represents --H, alkyl, alkoxy or a halogen; R1 represents --H, alkyl, and R2 represents --H, alkyl or alkoxy) are useful as light fast orange dyes for polyamides and they a... | 08/25/1981 |
