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7470780 |
Dyes that are soluble in organic solvents
The present invention relates to dyes of formula (1) that are soluble in organic solvents, wherein Cat + is an organic cation, to a process for their preparation and to their use in the production...
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6632932 |
Trisazo compound
The objective of the present invention is to provide a high-purity trisazo compound with excellent light resistance that is useful as a coloring matter for a black aqueous ink for ink jet recording...
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6451989 |
Black azo dyes
Provided are novel black azo dyes which are useful in ink compositions, especially ink jet ink compositions. The dyes and ink compositions of the present invention exhibit a good balance of optical...
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6160169 |
Preparation of amine salts of 4-nitrotoluene-2-sulfonic acid
A process for preparing amine salts of 4-nitrotoluene-2-sulfonic acid by sulfonation of nitrotoluene with oleum, subsequent dilution of the reaction mixture with water and extraction with...
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6130319 |
Methods of making cationic azo dye compounds having flocculating properties using reactive dyes
A flocculating dye reduces bleed between two inks when they are applied side by side. A first ink comprises the flocculating dye which flocculates the dispersant-pigment of the second ink.
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6084078 |
Disazo dyestuffs for dyeing cellulosic materials
The novel disazo dyestuffs of the formula (I) in which the substituents and indices have the meanings given in the description, are outstandingly suitable for dyeing cellulosic materials in...
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6031083 |
Disazo dyestuffs
The new disazo dyestuffs of the formula (I) ##STR1## wherein the substituents and the indices have the meanings given in the description, wherein more than 25 equivalent % of all the M cations in...
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5997628 |
Heat stable laked monoazo pigment compositions
Disclosed are red shade yellow compositions characterized by the formula: ##STR1## wherein X is a lower alkyl or a --COOR 1 group; wherein R 1 is a hydrogen or lower alkyl group; each Y is...
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5986075 |
Process for the production of diazonium compounds with a low content of sodium ions
The present invention relates to a process for desalting aqueous suspensions containing an organic diazonium compound and electrolytes containing Na ions, in which the aqueous suspension is passed...
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5965716 |
Dyestuff salts containing a cationic group derived from a sterically hindered amine
A salt of formula I F n .A (I) in which F is the residue of a metal free anionic dyestuff having 1 to 4 acids groups, n is 1 to 2; and A is...
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5919915 |
Azo pyrazolone pigments
An azo pyrazolone compound of the formula: ##STR1## wherein Z represents a substituent selected from Cl, Br, F, NO 2 , SO 2 R, CO 2 R, NHSO 2 R 1 and NHCOR 1 in which R and R 1 are...
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5770708 |
Preparation of phenylazonaphthalenes
A process for preparing aqueous preparations of azo dyes of the formula ##STR1## where R is hydrogen or C 1 -C 4 -alkyl and Kat♁ is the equivalent of a cation which derives from a tertiary...
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5744590 |
Monoazo pigments
An azo pyrazolone compound of the formula: ##STR1## in the form of a salt, and its use as a pigment.
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5616694 |
Azo compound
A compound of Formula (1) and salts thereof wherein the variables are as defined in the specification: Ar 1 NN-J-X-L-X-J-NNAr 2 (1) A compound of Formula (1) is suitable...
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5597387 |
Water-soluble polyazo dyestuffs
The present invention relates to water-soluble polyazo dyestuffs of the general formula I ##STR1## wherein Y, Z, m and M ♁1 to M ♁4 are as defined in claim 1, processes for dyeing leather and...
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5571899 |
Salts of metal-free anionic substituted-2-hydroxy-1-phenylazonaphthalene dyes having cations containing sterically hindered amine groups
Salts of the formula F n .A, wherein F is an anion of a metal-free anionic dye having m acid groups wherein m is 1 to 4, inclusive, A is a cation of an amine containing 1 to 6 sterically...
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RE35359 |
Amine salts of azo pigments based on pyrazolone derivatives
Compounds of formula ##STR1## wherein a and b are each independently of the other halogen, --CH 3 , --C 2 H 5 , --OC 2 H 5 or the group of formula --NHCO--C 1 -C 4 alkyl, c and d are each...
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5556885 |
N-aryl- and N-heteroarylhydrazones of substituted thioacids and the s-oxides thereof as insecticidal and acaricidal agents
There are provided N-arylthiohydrazone derivatives of formula I ##STR1## the use thereof for the control of insect and acarid pests and methods and compositions for the protection of crops from the...
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5554735 |
Azo oxime ethers and their use as fungicides
Azo oxime ethers of formula (I), in which X is CH or N, R 1 is hydrogen, C 1 -C 3 alkyl, trifluoromethyl or cylclopopy and R 2 is aryl or heteroaryl, have an activity against phytopathogenic...
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5523387 |
Mass dyeing of synthetic polymers with dyes in salt form
This invention relates to dyes in salt form which are useful for mass dyeing of synthetic polymers. In particular, this invention relates to ammonium or immonium salt-containing dyes that display...
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5519121 |
Triazinyl-amino bridge-containing disazo dyestuffs
Novel dyestuffs of the formula (I) ##STR1## in which DK denotes a radical of the formula ##STR2## where m is 1 or 2 and DK' denotes a radical of the formula ##STR3## where n is 1 or 2 R 1 ...
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5510467 |
Salts of metal-free anionic phenylazopyrazolone dyes having cations containing sterically hindered amine groups
Salts of the formula F n A, wherein F is an anion of a metal-free anionic dye having m acid groups wherein m is 1 to 4, inclusive, A is a cation of an amine containing 1 to 4 sterically...
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5486601 |
Trisazo dye, and aqueous ink composition containing the same
Disclosed is a trisazo dye represented by the formula: ##STR1## wherein R 1 and R 2 independently represent a substituted amino group which is substituted with hydrogen, a hydroxyl group, a...
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5473053 |
Magenta poly-azo compounds
A compound of Formula (1) and salts thereof: Ar 1 NN--J--X--L--X--J--NNAr 2 (1) wherein: ##STR1## Ar 1 and Ar 2 are each independently aryl containing at least two carboxy groups; and ...
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5453495 |
Disazo compounds containing an optionally substituted piperazinyl group
A compound of Formula (1) and salts thereof: ##STR1## wherein: L is optionally substituted piperazinyl; D is optionally substituted phenylene or naphthylene; E is optionally substituted...
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5446134 |
Bis(perfluorosulfonyl)methane salts, and a process for preparing same
Bis(perfluorosulphonyl)methanes, process for preparing same and uses thereof. The compounds of the invention are based on the formula (1/nM)+[(R F SO 2 ) 2 CY] - in which Y denotes an...
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5378269 |
Recording liquids for ink-jet recording
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...
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5366543 |
Alcohol-soluble dye and ink composition containing the same
The present invention provides a disazo salt-forming dye having excellent solubility with organic solvents, especially alcohols and glycols. The present invention thus provides a disazo...
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5340929 |
Trisazo dye and dye composition containing the same
The present invention provides a trisazo dye represented by the formula: ##STR1## wherein B is a substituted or non-substituted phenyl group, A is a phenyl group substituted with at least one...
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5330542 |
Dye-incorporated composition
A dye-incorporated composition which comprises a cyanine type dye and an azo metal chelate compound comprising an azo type compound of the following formula (I): ##STR1## (wherein A is a residue...
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5262527 |
Disazo dyes suitable for use in ink jet printing
Anionic azo compounds which, in the free acid form, have the Formula (1): ##STR1## Ar 1 and Ar 2 are each independently aryl or substituted aryl providing at least one of Ar 1 and Ar 2 has at...
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5258505 |
Trisazo compounds, and dye compositions containing same
Disclosed herein is an azo compound represented by the formula ##STR1## wherein R 1 , R 2 and R 3 each are a group or atom selected from the group consisting of a hydrogen atom, alkyl groups...
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5254674 |
Diaminoazothiophene compound and a method for preparing the same
A diaminoazothiophene compound represented by the formula (I): ##STR1## salts thereof or metal complexes thereof and a method for preparing the same.
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5241058 |
Azo dye salts useful as masking couplers and preparation thereof
Azo dye salts corresponding to formula I are suitable as masking couplers. ##STR1## In Formula I, A denotes an optionally substituted aryl group; CC denotes a group optionally carrying a ballast...
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5229503 |
Lysine-n-amino reactive and cysteine-mercapto reactive azo dyes
The invention relates to azo compounds, especially to compounds of formula ##STR1## wherein R 1 is lower alkyl, R 2 is lower alkyl, R 3 is hydrogen, carboxy or sulfo, R 4 is carboxy or sulfo, G...
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5210188 |
Dyestuffs for perfluoropolyoxyalkylenes and compositions based on perfluoropolyoxyalkylenes containing such dyestuffs
1. Dyestuffs for cyclic or straight polyfluoropolyoxyalkylenes, of general formula: Q[B--(A) s ] t (III) or [(Q) s --B] 2 A ...
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5175260 |
Disazo dyes with hydroxysulfonylnaphthalene coupling components
Disazo dyes suitable for preparing inks have the formula ##STR1## where m is 1 or 2, n is 0 or 1, Z 1 is hydrogen or substituted or unsubstituted C 1 -C 4 -alkyl, Z 2 is hydrogen,...
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5171848 |
Salts of black trisazo dyes with alkyl amines having good solubility in organic liquids
Black compounds of Formula (1) having enhanced solubility in polar organic liquids which are useful as ink colorants in conventional and hot melt ink-jet printing and automatic identification, as...
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5118737 |
Water-soluble dye
A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R 1 is --(C a H 2a O) m (C b H 2b O) n H, R 2 is H or --(C a H 2a O) m (C b H 2b O) n H,...
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5091517 |
Azo dyes containing a 4-aminopyrazolisothiazole diazo compound
The invention relates to novel azo dyes of the formula ##STR1## wherein R 1 is an alkyl radical containing 1 to 12 carbon atoms, which is unsubstituted or substituted by hydroxy, alkoxy, cyano or...
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5071968 |
Azo dyes containing a 7-sulfoalkanoylamino-1,2,3,4-tetrahydroquinoline coupling component
Azo dyes of the formula ##STR1## where D is a diazo component, R 1 , R 2 , R 3 and R 4 are each independently of the others hydrogen or substituted or unsubstituted C 1 -C 8 alkyl, and n is...
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5055566 |
Amine salts of disazo black dyes having good solubility in polar organic solvents
A compound of the Formula (1): ##STR1## wherein R is H, SO 3 A, C 1 -4 -alkyl, C 1 -4 -alkoxy, NO 2 , OH or halogen; W, X, Y and Z are independently H or SO 3 A; and A is NQ 4 wherein at...
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5053495 |
Anionic dye having high water-fastness
A dye which, in the free acid form, has the formula ##STR1## wherein W is COOH X is selected from H, COOH, SO 3 H, halo, hydroxy, nitro, cyano, C 1 -6 -alkyl, C 1 -6 -alkoxy and C 1 -6...
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5049238 |
Method of dyeing paper utilizing trisazo dyes
A method of dyeing paper utilizing dyes suitable for dyeing paper in blue shades having the formula ##STR1## wherein R is hydrogen, --OH, --OR 1 , --NH 2 , NHR 1 , --NHCOR 1 , --NHSO 2 R 1 ,...
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5047516 |
Azo compound suitable for use in non-linear optics
An azo compound of the formula: ##STR1## wherein R is an non-hydrophilic aliphatic or cycloaliphatic group containing from 8 to 40 carbon atoms; m is 0 or 1; R 1 is NO 2 , CN or COOR 2 ; ...
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5043257 |
Azo dyes for photographic silver dye bleach material
Azo dyes of the formula ##STR1## where X is alkyl or alkoxy each of 1 to 4 carbon atoms or halogen, X' is hydrogen, alkyl or alkoxy each of 1 to 4 carbon atoms or halogen, Y and Y' are...
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5041539 |
Preparation of aqueous concentrates of yellow azo and azoxystilbene dyes utilizing alkanolamine salts
The invention relates to a process for the preparation of concentrated storage-stable aqueous solutions of yellow azo- and azoxystilbene dyes which are obtained by self-condensation of...
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5026830 |
Process for the preparation of azo dyes by carrying out coupling in the presence of an alkali metal chloride and ammonium chloride
Process for the preparation of azo dyes of the formula ##STR1## in which K is the radical of a coupling component of the benzene or naphthalene series or of the heterocyclic series in which the...
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5013826 |
Azo dyes containing 5-cyclohexylcarbonyl-thiophene diazo components and 1,2,3,4-tetrahydroquinoline coupling components
The azo dyes of the formula ##STR1## in which R 1 is hydrogen or substituted or unsubstituted C 1 -C 10 alkyl, R 2 is a group of the formula, --CN, --CON(R 8 )R 9 , --COR 10 , --COOR 11 , --SO...
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5013455 |
Process for enhancing the filterability of organic pigments
A process for enhancing the filterability of organic pigments, which comprises adding to an aqueous pigment suspension 0.5 to 15% by weight, based on the pigment, of an unbranched aliphatic...
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