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Class 534/797 - Two azo groups attached indirectly to each other by nonionic bonding


Subclass of Class 534 - Organic compounds -- part of the class 532-570 series
Definition: Compounds in which two azo groups are attached indirectly
No. of patents: 163
Last issue date: 02/03/2009


1          
NumberTitleIssue Date
7485706Neurodegenerative protein aggregation inhibition methods and compounds
Methods and compositions are provided for reducing aggregation of neurodegenerative proteins associated with neurotoxicity or other proteins. The compounds comprise a first domain or targeting element for binding to the target proteins linked to a second domain or r...
02/03/2009
7446184Magenta dyes and their use in ink-jet printing
A compound of Formula (1) and salts thereof: wherein: Q is an optionally substituted aryl ring; Y is CO2H, SO3H or PO3H2; ...
11/04/2008
7300506Ink formulations, print systems, and methods thereof
Ink formulations, ink jet sets, methods of stabilizing an ink formulation, printer systems, and methods thereof, are disclosed. One exemplary ink formulation, among others, includes a pigment and a borate buffer. The ink formulation has an ink stability characterist...
11/27/2007
7273520Ink set for ink jet printing
Ink set for ink jet printing comprised of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the yellow ink contains a mixture of at least one yellow dye with reddish hue of formula (I), ...
09/25/2007
7247261Nonlinear optical material with nano-sized dendrimer structure
The present invention relates to a non-linear optical material having a dendrimer structure; and, more particularly, to a non-linear optical material having organic chromophores at the ends and formed based on ester linkages and/or ether linkages. Since the non-line...
07/24/2007
7183409Basic mono- and bisazo compounds
The invention relates to basic mono- and bisazo compounds according to formula (I) wherein all substituents are defined as in Claim 1, their production, their use as dyestuffs as well as material dyed with these ...
02/27/2007
7163576Disazo dyes and ink jet inks containing them
A compound of Formula (1): wherein: A1 and A2 are each independently optionally substituted phenyl or naphthyl; each Q independently is op...
01/16/2007
7156907Multimeric dye structures
The present invention is drawn to multimeric dyes, ink-jet inks, and systems that can be used to print images having good water fastness and humid fastness, as well as good color characteristics. Specifically, a multimeric dye for ink-jet printing can comprise a fir...
01/02/2007
7150783Disazo dyes and ink jet inks containing them
A composition comprising a liquid medium and a compound of Formula (1) or a salt thereof: wherein: m is 1 or 2; n is 1 or 2; and x is 2 to 4.
12/19/2006
7144451Method of printing sheet-form substrates by the inkjet printing process
The invention relates to a method of printing sheet-form substrates by the inkjet printing process, which method comprises printing those materials with an aqueous ink comprising a) at least one dye of formula wh...
12/05/2006
7122544Anilinopyrimidine derivatives as IKK inhibitors and compositions and methods related thereto
Compounds having activity as inhibitors of IKK are disclosed, particularly IKK-2. The compounds of this invention are anilinopyrimidine derivatives having the following structure: wherein R1 and R6
10/17/2006
7078497Disazo dyes, and copper complexes thereof, for dyeing paper
The dyes of formula (1) according to claim 1 and the copper complexes of dyes of formula (2) according to claim 9 or the mixtures of mono-copper complex with the bis-copper complex are excellently suitable for dyeing paper with good light-fastness prop...
07/18/2006
7066969Dyes incorporating annionic and cationic groups
The present invention relates to novel compounds of the formulae A, D1, D2, R1 and n are as defined in the description the compounds being in an internal or external salt form, or mixtures of compounds (1) and (2), a process for thei...
06/27/2006
7019129Dark quenchers for donor-acceptor energy transfer
The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes inco...
03/28/2006
6867286Yellow dyes and ink compositions
Provided are novel yellow azo dyes which are useful in ink compositions, especially ink jet compositions. The dyes and ink compositions of the present invention exhibit a good balance of optical density, print reliability, water fastness and light fashion and exhibi...
03/15/2005
6844428Use of disazo compounds
The invention relates to the use of disazo compounds according to formula (I) wherein all substituents are as defined in claim 1 salts thereof and mixtures of these compounds for dyeing or printing or...
01/18/2005
6784287Organic dye molecules and nonlinear optical polymeric compounds containing chromophores
Organic dye molecular materials prepared by coupling existing organic chromophore molecules to benzene or carbazole derivatives and nonlinear optical polymeric compounds having polyimide repeating units coupled with the organic dye molecular material are provided. T...
08/31/2004
6758890Aqueous ink and process for producing dye
Aqueous ink for ink jet recording comprising a coloring matter and an aqueous medium, in which at least one of dyes represented by the formula (A) or a salt thereof is contained as the coloring matter wherein R1
07/06/2004
6736888Disazo dyes and inks containing them
A compound comprising a disazo chromophore and an optionally substituted heterocyclic group linked together through a —SO2—NH— group, inks comprising these compounds, ink jet printer cartridges containing these inks and their use in ink jet printing...
05/18/2004
6730780Water-based ink
An oil-soluble dye prepared by subjecting a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule to amidation: a water-based ink comprising the oil-soluble dye: and a process for prepari...
05/04/2004
6695899Disazo dyestuffs for ink jet printing
A compound of Formula (1) and salts thereof: ##STR1## wherein: A is a substituted phenyl group carrying a group of the formula --NR3 R4 and an ortho carboxy group; n is 0 or 1; L1 and L2 are each independ...
02/24/2004
6482255Disazodyes for ink jet printing
Compounds of the Formula (1) and salts thereof: ##STR1## wherein B1, B2, Q, R1, R2, A, Z1 and Z2 are defined in the description. Also claimed are compositions containing two or more compoun...
11/19/2002
6451988Naphthol derivatives
Novel naphthol derivatives, and various azo compounds and metal complexes prepared by using the derivatives are provided. The instant invention provides naphthol derivatives represented by general formula (1); ##STR1## wherein at least one of Y1
09/17/2002
6395885Use of lithium salts of anionic dyes to enhance their light-fastness
The use of lithium as a cation for an anionic dye to enhance the light-fastness of the dye. Also claimed are the lithium salts of certain anionic dyes as defined in the description; mixed lithium/sodium salts of an anionic dye wherein the molar ratio of l...
05/28/2002
6365719Bridged disazo compounds
Compounds of formula (I) ##STR1## with the meanings of D, R1, R2, X and Y as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks....
04/02/2002
6290763AZO dyes and compositions comprising such dyes
Azo dyes of Formula (1) have utility as dyes for ink-jet printing, where Formula (1) represents: ##STR1## which comprises any suitable form of the compound: such as salt; stereoisomer, zwitterion, polymorph, complex, isotopic form, combinations there...
09/18/2001
6277185Dye compounds, compositions containing them and their use
Azo dyes of Formula (1) have utility as dyes for ink-jet printing where Formula (1) represents: ##STR1## which comprises any suitable form of the compound: such as salt; stereoisomer, zwitterion, polymorph, complex, isotopic form, combinations thereo...
08/21/2001
6140477Near-infrared ray absorbing polyazo compound
A polyazo compound capable of effectively absorbing near-infrared rays, which can be produced from readily available raw materials is provided, which comprises at least one --OH group or at least one group derived from --OH group at p-position of the azo ...
10/31/2000
6130320Acid disazo dyes as well as sulphonamides as their intermediate product
Disazo dyes of formula (I) where one of the two symbols X1 and X2 means hydroxy and the other amino and R1, R2, R3, R4, R5, R6, R7 and R8 are as defin...
10/10/2000
6127531Monoazo reactive dyes
A dyestuff according to formula (I) ##STR1## or a salt thereof wherein the substituents have the definitions as defined in claim 1. The dyestuffs are useful for dyeing or printing nitrogen-containing or hydroxy-group-containing organic substrates and...
10/03/2000
6068687Azo dyes and their preparation and use
Azo dyes of formula (4) ##STR1## wherein A, R4, M and m are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and especially for the preparation of inks for ink jet printing....
05/30/2000
6008331Disazo compounds containing a piperazinylethysulfonyl group
A compound of the formula (1) ##STR1## or a salt thereof wherein J is a group of the formula (1a) ##STR2## and A, Y, T, T1, R, R1, R4, R5 and R6 are as defined in the specification are usefu...
12/28/1999
6005085Condensed azo compounds and process for preparing the same
The present invention provides novel condensed azo compounds using bisamide compounds of 2-hydroxynaphthalene-3,6-dicarboxylic acid, amide, or ester as the couplers, which have excellent properties such as excellent water resistance, chemical resistance, ...
12/21/1999
5969114Azo compound
A compound of Formula (1) or a salt thereof: wherein: J is --OR4 or --NR4 R5 ; R4 is H or optionally substituted alkyl, aryl or acyl; and R4 and R5 taken together with the N atom to which they are at...
10/19/1999
5965715Bisazo compounds and process for the preparation thereof
The invention provides novel bisazo compounds which is obtained by coupling two molecules of a 2-hydroxynaphthalene-3,6-dicarboxylic acid derivative and a compound having two diazo groups in its molecule, as well as a process for producing the same. The p...
10/12/1999
5925746Azo dyes, processes for their preparation and the use thereof
Azo dyes of the formula (1) ##STR1## wherein R1, R2, R3 and R4 independently of one another are each hydrogen or substituted or unsubstituted C1 -C4 alkyl, R5, R6, R
07/20/1999
5882392Bisazo inkjet dyes
A dye of Formula (1) and salts thereof: ##STR1## in which R is H, --NHC1-4 -alkylN(C1-4 -alkyl)2 or ##STR2## R1 and R2 each independently is H, optionally substituted C1-4 -alkyl ...
03/16/1999
5882391Bisazo inkjet dyes
A bisazo dye of Formula (1) and salts thereof: ##STR1## in which R is H or ##STR2## R1 and R2 each independently is H, optionally substituted C1-4 -alkyl or optionally substituted aryl; R3 and R5
03/16/1999
5869627Stabilised dye composition
A composition of a water-soluble bis-azo dye of the Formula (1) and an oxidising agent. ##STR1## wherein A is optionally substituted phenyl or optionally substituted naphthyl; B is optionally substituted phenylene or optionally substituted napht...
02/09/1999
5859216Anionic acid dyes, processes for their preperation and their use
Anionic acid dyes of the formula ##STR1## in which R1 and R2 independently of one another are hydrogen or substituted or unsubstituted C1 -C4 alkyl, X1 is C1 -C8 alkyl, substitut...
01/12/1999
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