Class 534/810 - Containing -C(=X)-, wherein X, is chalcogen or nitrogen (e.g., carbonyl, etc.)

Subclass of Class 534 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain a -- group, wherein X is nitrogen
No. of patents: 40
Last issue date: 02/05/2008

Number	Title	Issue Date
7326288	Trisazo compound, ink composition, and colored object [PROBLEMS] To provide: a black compound which is for use in ink-jet recording or writing utensils, is excellent in ozone resistance, light resistance, moisture resistance, and color rendering, and gives a recording fluid having satisfactory storage stability; and an...	02/05/2008
7173114	Lightfast colorant and lightfast ink composition including the same A lightfast colorant and a lightfast ink composition including the lightfast colorant utilize a lightfast colorant that is derived by covalently binding a cinnamate derivative and a conventional colorant. The lightfast colorant improves storage stability as well as ...	02/06/2007
7078497	Disazo 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
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 and the like. Thus, the present invention provides a tris...	10/14/2003
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 density, print reliability, water fastness and light fast...	09/17/2002
6409810	Water-soluble trisazo compounds, aqueous ink composition and colored article A black recording having high solubility, being stable even after being stored for long, and capable of forming a printed image with a high optical density and excellent water and light resistances. The recording fluid contains a trisazo compound of gener...	06/25/2002
6288217	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 density, print reliability, water fastness and light fast...	09/11/2001
6140477	Near-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
5616174	Ink composition and ink jet recording method using the same An ink composition is provided which enables high-quality recording on plain paper and can record an image having excellent water resistance. The ink composition comprises a dye represented by the following formula (I): ##STR1## wherein M represents ...	04/01/1997
5549853	Linked azo dyes Azo dyes of the formula W(--X--Y--Chr)n, where n is 2 to 6, y is C1 -C6 -alkylene, Chr is the radical of a mono- or polyazo dye, X is a radical of the formula CO--O or O--CO and W is an n-valent radical which is derived from an unsubstit...	08/27/1996
5488101	Trisazo compounds, method for dyeing fiber materials, paper or leather using the same and inks containing the same Herein is provided a trisazo compound represented by formula (I) in the free acid form: ##STR1## wherein Q1 is an unsubstituted or substituted phenylene or naphthylene group, Q2 is an unsubstituted or substituted phenyl or ...	01/30/1996
5486601	Trisazo dye, and aqueous ink composition containing the same Disclosed is a trisazo dye represented by the formula: ##STR1## wherein R1 and R2 independently represent a substituted amino group which is substituted with hydrogen, a hydroxyl group, a carboxyl group, an amino group, an alkyl...	01/23/1996
5213614	Ink, ink jet recording process and recording apparatus using the same An ink comprising: water, a water soluble organic solvent, and a colorant represented by the following general formula (I): ##STR1## wherein Q1 is a substituted phenyl group; Q2 is a substituted or unsubstituted p-phenylene or a substituted or unsubs...	05/25/1993
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
5198022	Waterfast dye and aqueous ink A alkali-soluble dye for a waterfast ink having structural formula as follows: ##STR1## and an ink containing the dye dissolved in water. Printing from the ink is insoluble below pH 6.0; is an intense black at low concentration; and remains blac...	03/30/1993
5178671	Ink, and ink-jet recording method and apparatus employing the ink Provided is an ink comprising a recording agent and a liquid medium for dissolution or dispersion thereof, the recording agent being a compound represented by the general formula ##STR1## where R1 is a radical selected from the group of lo...	01/12/1993
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 black colorants for toners and thermal wax transfer sheets ...	12/15/1992
5167703	Ink, ink-jet recording process and instrument making use of the ink Provided is an ink comprising at least water, a water-soluble organic solvent, and a dye, the dye comprising a compound represented by the general formula (I): ##STR1## wherein R1, R2, and R3 are respectively hydrogen...	12/01/1992
5127946	Ink, and ink-jet recording method and apparatus employing the ink Provided is an ink containing a recording agent and a liquid medium for dissolution or dispersion thereof, said ink comprising, as the recording agent, a compound represented by the general formula (A) ##STR1## where n is 0 or 1; R1, R	07/07/1992
4875903	Monoazo compounds containing a 2-sulfophenyl diazo component radical and a 1-hydroxy-naphthalene-sulfonic or disulfonic acid coupling component radical and two substituted 1,3,5-triazine rings Compounds of the formula ##STR1## wherein each R1 is independently hydrogen, C1-4 alkyl or C1-4 alkyl monosubstituted by hydroxy, halo, cyano or C1-4 alkoxy, each of X1 and X3 is indep...	10/24/1989
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
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
4734489	Trisazo compounds useful in producing water-resistant ink compositions An azo compound of the formula: ##STR1## wherein R is of the formula: ##STR2## R1 is hydrogen, methyl or --SO3 M; R2 is hydrogen or --SO3 M; R2 is hydrogen or --SO3 M; R3	03/29/1988
4600674	Trisazo electrophotographic photoconductive material Disclosed is an electrophotographic photoconductive material excellent in sensitivity and durability which comprises an electroconductive substrate and, provided thereon, a photosensitive layer containing a trisazo pigment represented by the general formu...	07/15/1986
4594410	Azo compounds containing both sulfo groups and basic or cationic groups which compounds are in metal-free or 1:1 metal complex form Azo dyes of the formula ##STR1## and external salts thereof, wherein F is the residue of a monoazo or disazo compound in 1:1 metal complex form or of a trisazo, disazoazoxy or tetrakisazo compound in metal-free or 1:1 metal complex form, each X is in...	06/10/1986
4591634	Trisazo/azoxy dyestuff mixtures Trisazo/azoxy dyestuff mixtures which in the form of free acid correspond to the formula ##STR1## in which R denotes H or optionally substituted alkyl, X and Y denote H, alkyl, alkoxy, halogen, hydroxyl, alkylsulphonyl, optionally mono- or di-alkyl-s...	05/27/1986
4485042	Dyestuff containing at least three azo bridges Leathers can be advantageously dyed with water-soluble polyazo dyestuffs having, in the form of the free acid, the formula ##STR1## wherein A is a member of the benzene, naphthalene or heterocyclic series; B has the formula ##STR2## n is the num...	11/27/1984
4479906	Trisazo dye Trisazo dyes containing sulfo groups and having the formula: ##STR1## which for the most part give black colorations on paper and particularly on leather and are therefore especially useful as leather dyes....	10/30/1984
4443371	Trisazo black dyes New trisazo dyes, having the structure ##STR1## in which M represents H, Na, K, Li, or N(R3)H wherein R represents --H, --CH3, --C2 H5, --C3 H7, --CH2 CH2 OH, --C...	04/17/1984
4308163	Novel yellow azo dyes and dichroic liquid crystal composition made therewith Novel yellow azo dye compositions and a liquid crystal composition containing the yellow azo dye composition are disclosed. The yellow azo dye composition, having terminal ester groups has the general formula: ##STR1## wherein R and R' are acyl group...	12/29/1981
4308161	Novel yellow azo dyes and dichroic liquid crystal compositions made therewith Novel yellow azo dye compositions and a liquid crystal composition containing the yellow azo dye composition are disclosed. The yellow azo dye composition, having terminal ester groups, has the general formula: ##STR1## wherein R and R' are acyl grou...	12/29/1981
4308162	Novel yellow azo dyes and dichroic liquid crystal compositions made therewith Novel yellow azo dye compositions and novel liquid crystal compositions containing the yellow azo dye composition. The yellow azo dye composition, having terminal ester groups, has the general formula: ##STR1## wherein R and R' are alkyl or substitut...	12/29/1981
4308164	Novel yellow azo dyes and dichroic liquid crystal composition made therewith Novel yellow azo dye compositions and a liquid crystal composition containing the yellow azo dye composition are disclosed. The yellow azo dye composition, having terminal ester groups has the general formula: ##STR1## wherein R and R' are acyl group...	12/29/1981
4279814	Salicyl phenyl naphthyl trisazo di and trisulfonic developed direct black dyes New trisazo compounds that are useful as developed direct black dyes for cellulosic textiles and as self-shade dyes for paper and leather having the structure: ##STR1## wherein R' is at least one of the following groups: ##STR2## and M is H...	07/21/1981
4248776	Symmetrical trisazo dye obtained by coupling tetrazotized 4-4'-diaminozobenzene with 2-carboxymethylamin0-8-naphthol-6-sulphonic acid The present invention concerns a new acid trisazo dye suited for the dyeing of natural and synthetic polyamidic fibres and particularly for the dyeing of leather. The dye has the following structural formula: ##STR1## and dyes in a full black shade. ...	02/03/1981
4097476	Trisazo dyes having a 2,7-(1-amino-3,6-or 4,6-disulfo-8-hydroxynaphthylene) radical Disclosed are compounds of the formula, ##STR1## in which X is hydrogen, chlorine, C1-4 alkyl or alkoxy, --SO3 M or --CO2 M, one of the Y's is hydrogen, the other --SO3 M, A is a mono- or di-sulphonaphthyl radic...	06/27/1978
4075286	Preparation of block polymers using polyazo sequential free radical initiators A process for preparing a block polymer by first forming a polymer having azo functions by reacting vinyl polymer and a polyazo compound under conditions so that one of the azo functions rupture leaving the other azo function in tact; then, vinyl monomer ...	02/21/1978
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
3949015	Internally plasticized poly(vinyl chloride) Macroazonitrile molecules formed of flexible poly(ethylene oxide) segments connected by azo linkages are heated in the presence of vinyl chloride to initiate the addition polymerization of the monomer onto the ends of the poly(ethylene oxide) segments. An...	04/06/1976
3930793	Process for the dyeing of synthetic fiber materials from organic solvents A process for the continuous dyeing of textile material containing or consisting of synthetic fibers from organic solvents, which comprises impregnating the said textile materials with an organic dyebath containing at least one dyestuff of the formula in ...	01/06/1976

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Class 534/810 - Containing -C(=X)-, wherein X, is chalcogen or nitrogen (e.g., carbonyl, etc.)