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| Number | Title | Issue Date |
| 6713613 | Reactive dye compounds A reactive dye compound comprising: (a) at least one chromophore moiety (b) at least one nitrogen-containing heterocycle (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at... | 03/30/2004 |
| 6172171 | Macroazo compounds Macroazo compounds, which comprise a repeating unit composed of a moiety of the formula (a), a (b) and a moiety of the formula (c) ##STR1## wherein X, E, Z and T are independently a lower alkylene group, R1, R2, R3 and R | 01/09/2001 |
| 6001980 | Polyester toner composition for electrophotographic imaging systems This invention provides a free-flowing polyester dye powder which has superior stability and transparency for application in electro-photographic imaging systems. In another embodiment this invention provides novel chromophoric diester monomers which are ... | 12/14/1999 |
| 5744559 | Macro-azo initiator A macro-azo initiator obtained by reacting a compound (A) having an azo group in the molecule and having a reactive functional group at each end of the molecule with a compound (B) having an azo group in the molecule and having at each end of the molecule... | 04/28/1998 |
| 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 |
| 5160495 | 2-cyano-4,6-dimitro-phenyl monoazo dyestuffs Monoazo dyestuffs useful for dyeing and printing hydrophobic fibers have the formula ##STR1## in which R1 denotes alkyl having 1 to 3 carbon atoms, R2 and R3 independently of one another denote alkyl having 2 to 5 car... | 11/03/1992 |
| 5136029 | Hydrolyzable silyl group-containing azo compound A hydrolyzable silyl group-containing azo compound is represented by the following general formula (I): ##STR1## wherein A represents a group originating from an azo compound having one or more active hydrogen groups; R1 represents a monov... | 08/04/1992 |
| 5037968 | Adducts of an anion of an oxa acid and a keto compound, process for the preparation of said adducts, and process for the determination of the concentration of the anions of oxa acids using said keto compounds Keto compounds in which to the carbon atom in the neighboring position to the keto compounds there is bonded at least one strongly electron attracting substituent and/or in which there is conjugating with the carbon-oxygen-double bond of the keto group a ... | 08/06/1991 |
| 4997920 | Monoazo compounds containing long-chain alkyl radicals Compounds of the formulae I and II ##STR1## in which A is a radical of the formulae III, IV or V ##STR2## R1 and R4 are --H or --Cl, R2 and R5 are --H, halogen, --NO2, --CN, C1 -C... | 03/05/1991 |
| 4978746 | Reactive naphthyl aza pyridone dyestuffs A dyestuff of the formula ##STR1## wherein A=H, unsubstituted C1 -C4, C1 -C4 -alkyl substituted by OH, SO3 H or COOH or phenyl or COOR', R'=H or C1 -C4 -alkyl, X=--CH.dbd.CH... | 12/18/1990 |
| 4946948 | Mono and disazo compounds based on b-hydroxy-naphthoic acid derivatives or acetoacetarylide derivatives containing long-chain alkyl ester or alkylamide radicals Compounds of formula I: ##STR1## wherein R is a radical of the formula --OR3 or --NHR3, A is a radical of formula II or III: ##STR2## B is a radical of the formula ##STR3## n is the number 1 or 2, R1 is... | 08/07/1990 |
| 4902785 | Phenolic photosensitizers containing quinone diazide and acidic halide substituents The invention relates to mixed ester photosensitive compounds and photosensitizer compositions comprised thereof. The photosensitive compounds and photosensitizer compositions are prepared by condensing phenolic compounds with a 1,2-naphthoquinonediazide-... | 02/20/1990 |
| 4892936 | Process for the preparation or -azo esters A process is disclosed for the preparation of -substituted carbonyl compounds, wherein -substituted ketone is prepared by the following reaction: ##STR1## -azo ester is prepared by the following reaction: ##STR2## and &... | 01/09/1990 |
| 4889846 | 3-(2,5-disubstituted phenylazo)-4-substituted phenylalkan-1-oic acids and esters thereof and method of treating inflammatory disorders therewith The invention concerns azo compounds of formula ##STR1## or a salt thereof, in which formula R1, R2, R3, R4, R5, and R6 are each independently hydrogen or lower alkyl, R7 an... | 12/26/1989 |
| 4739042 | Halftone gravure printing inks containing pyridone azo dyestuffs Halftone gravure printing inks containing pyridone azo dyestuffs wherein the dyestuffs are obtained by reacting a pyridone dyestuff of the formula ##STR1## with a dicarboxylic or polycarboxylic acid or a pyridone azo dyestuff of the formula ##ST... | 04/19/1988 |
| 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 |
| 4425271 | 2,6-Dichlorophenyl-substituted phenyl-nitroa-zones and their use as herbicides Compounds having the structural formula ##STR1## wherein R is alkyl, cycloalkyl, haloalkyl, alkenyl, alkylthio, alkoxy, --NH-alkyl, ##STR2## phenyl or monohalophenyl; and X is hydrogen; alkyl; monohalo; dihalo or nitro and intermediate comp... | 01/10/1984 |
| 4412951 | Reagents for measuring lipase activity A reagent for measuring a lipase activity comprised of a higher fatty acid ester having the general formula ##STR1## wherein R1 is a straight chain alkyl group; R2 is hydrogen or a halogen atom; R3 and R4 a... | 11/01/1983 |
| 4381261 | Structurally colored cross-linkable compounds, their preparation and their utilization in coating compositions Structurally colored cross-linkable compounds usable in coating compositions of the formula: ##STR1## wherein A is a single bond, an oxygen atom or an ##STR2## group, R1 being an alkyl group containing 1 to 6 carbon atoms, ³... | 04/26/1983 |
| 4329283 | Hydroxypyridone azo dyestuffs Disperse dyestuffs of the formula ##STR1## in which R, R1 and R2 denotes alkyl, E denotes A or B, A denotes alkyl, alkenyl, cycloalkyl or aralkyl, B denotes aryl, m denotes the numbers 2-4, Y and Z denotes R, Cl, Br or O--E and X denotes ... | 05/11/1982 |
| 4290945 | ,-azo-bis-isobutyric acid ,ω-bis alkyl ester derivatives and method for preparing same Novel compounds according to the present invention, i.e. derivatives of ,ω-bis-alkyl esters of isobutyric acid having the formula: ##STR1## A method for preparing the above-specified novel compounds consists in reacting ,'-azo-b... | 09/22/1981 |
| 4233206 | Process for the production of colored polyolefin molded articles and colorants used therein A process for the production of a colored polyolefin molded articles comprising adding to a polyolefin either a compound of the formula D--CH2 O.OC--R])n as a colorant wherein D is the residue of a common organic pigment, R is an alk... | 11/11/1980 |
| 4218370 | Azo monomer useful in polymerization systems An unsymmetrical azo monomer contains t-alkyl, t-cycloalkyl, or t-aralkyl moiety and one polymerizable double bond. This compound is useful in polymerization and crosslinking systems.... | 08/19/1980 |
| 4212802 | 1:2 Chromium complexes of disazo compounds Complexes of the formula ##STR1## in which each of X1 and X2, independently, is --COO-- or --O--, each of B1 and B2, independently, is the radical of a coupling component of the benzene series containing up to t... | 07/15/1980 |
| 4185013 | Anionic azo dyes having a 3-dibenzofuranyl diazo component radical optionally having a 2- or 8-sulfo group Disclosed are azo dyes containing, a diazo component radical of the formula ##STR1## wherein each of Z and Z1 is independently hydrogen or sulfo, with the proviso that at least one of Z and Z1 is hydrogen, for example monoazo an... | 01/22/1980 |
| 4179436 | Monoazodyestuffs containing diphenamine and phenoxy components Disperse dyestuffs of the formula ##STR1## wherein Z is an alkyl, aralkyl, cycloalkyl, or aryl radical and R1 represents H, NO2, CN, CF3, halogen, alkyl SO2 X1, SO2 NX2 X3 | 12/18/1979 |
| 4134888 | Cholesteryl carbonates and carbamates of azo dyes Novel liquid crystal dyes of the formula ##STR1## wherein (CHOL--) is a cholesteryl radical, X can be 0 or NH, R1 can be H, --OH, methyl, fluoro or chloro; R2 can be --NO2, --CN, N-(alkyl)2, --OCOOR, --OCOR... | 01/16/1979 |
| 4118385 | Disazo compounds Azourethane and urea compounds corresponding to the formula ##STR1## WHEREIN R is an aliphatic hydrocarbyl radical, B is oxygen or -NH- and Ar is an arylene radical, are highly efficacious grease thickening agents.... | 10/03/1978 |
| 4110444 | Thiocarbamates The disclosure is directed to mono- and dithiocarbamates (hereinafter thiocarbamates) corresponding to the formula RNHCXSR'COOR" wherein R is paraphenylazophenyl or metafluorophenyl, X is oxygen when R is paraphenylazophenyl and X is sulfur when R is meta... | 08/29/1978 |
| 4094868 | Azo di-ester polyols for graft copolymerization Compounds containing an azo-linkage connecting two similar polyol esters constituents are described. These azo di-ester polyols are prepared by the direct esterification of azo diacids with polyols, in the presence of a strong mineral acid catalyst. The a... | 06/13/1978 |
| 4088642 | Compounds having both peroxy and aliphatic azo groups I. Compounds having independent peroxidic (X) and aliphatic azo groups of the formula [(R-N.dbd.N-R')m -X]n Example: di-t-butylperoxy ester of cis-4,4'-azobis-(4-cyanovaleric acid). Ii. a method of making a block polymer where vinyl monomer is... | 05/09/1978 |
| 4081438 | Anionic azo dyes having a 3-dibenzofuranyl diazo component radical optionally having A2-or 8-sulfo group Disclosed are azo dyes containing a diazo component radical of the formula ##STR1## wherein each of Z and Z1 is independently hydrogen or sulfo, With the proviso that at least one of Z and Z1 is hydrogen, For example monoazo and disazo dy... | 03/28/1978 |
| 4059574 | Symmetric azo-bis-mercapto compounds Symmetric azo-bis-mercapto compounds of the formula ##STR1## wherein R1 and R2 are methyl or ethyl, R3 and R4 are the same or different alkylene having 1 to 4 carbon atoms, and n is 0 or 1, and a method for... | 11/22/1977 |
| 4045429 | 4-(4-Hydroxy- or acetoxy-3-carbomethoxyphenylazo)-benzenesulphonyl chloride A method for the preparation of 2-[4-(4-hydroxy-3-carboxyphenylazo)-benzenesulfonamido]-pyridine by reacting 4-diazobenzenesulfonic acid with an ester of salicyclic acid having the formula ##STR1## in the presence of an alkali metal hydroxide to... | 08/30/1977 |
| 4045427 | Azo-peroxide free radical initiators containing ultraviolet light stabilizing groups Compounds which contain azo or peroxide linkages as well as the radical of an ultraviolet light stabilizing group are described. These compounds function as polymerization initiators which cause an ultraviolet light stabilization group to be chemically bo... | 08/30/1977 |
| 4045426 | Bisazo free radical initiators containing ultraviolet light stabilizing groups Compounds which contain azo or peroxide linkages as well as the radical of an ultraviolet light stabilizing group are described. These compounds function as polymerization initiators which cause an ultraviolet light stabilization group to be chemically bo... | 08/30/1977 |
| 4008212 | Monoazo dye mixtures derived from 7-amino-4-nitrobenzotriazole and bis-hydroxyalkylamino acylanilides reacted with acid halides and amides A monoazo dye mixture which is the reaction product of the diazo base of 7-amino-4-nitrobenzotriazole and a coupling component of the formula ##STR1## wherein R1 is H or lower alkoxy; R2 is an alkyl radical having 1-4 carbon ato... | 02/15/1977 |
| 4007165 | Unsymmetrical tertiary-aliphatic azoalkanes Unsymmetrical azo compounds (R")3 C--N=N--R' where (R")3 C-- is tert.-aliphatic and R' is --C(R1)(R2)(Z) or ##STR1## e.g., 1-t-butylazo-1-chlorocyclohexane, their use as vinyl polymerization initiators and ... | 02/08/1977 |
| 3987024 | Bis- and trisazo sequential free radical initiators used in preparing block and graft copolymers Polyazo compounds containing at least one alkyl or aryl thia or oxa group alpha to at least one of the azo groups in the connecting chain between the azo groups, such as 4-t-butylazo-4-methyl-3-thiapentyl 4-t-butylazo-4-cyanovalerate, which are useful for... | 10/19/1976 |
| 3961885 | Process for the dyeing of synthetic fibrous materials from organic solvents using azo dyes A process for the continuous dyeing of textile materials consisting of or containing synthetic fibrous materials of the group consisting of high molecular polyamides, polyolefines, polyacrylonitriles, polyurethanes, polyvinylchlorides, polyvinylacetates, ... | 06/08/1976 |
