Class 534/816 - Exactly 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 exactly two azo groups are attached indirectly
No. of patents: 33
Last issue date: 10/29/2002

Number	Title	Issue Date
6472514	Electron transport compounds The present invention provides a new charge transport agent for use in a photosensitive layer in a positive-electrification-type electrophotographic photoconductor that can be used with high speed copying machines. The electrophotographic photoconductor o...	10/29/2002
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
6254671	Very green-shade yellow metallized disazo pigment In one embodiment, the present invention relates to a green shade yellow pigment composition comprising a compound having the formula: ##STR1## wherein R1 and R2 are independently hydrogen, halogen, an alkyl group having 1 to about 4...	07/03/2001
6013775	Polyazo dyes containing a plurality of hydroxy sulfonyl groups Polyazo dyes of the formula I ##STR1## where one of the two radicals X1 and X2 is hydroxyl and the other is amino, p and q are each independently of the other 0 or 1, D1 and D2 are each independently of the othe...	01/11/2000
5964899	Azo dyes, their production and use Azo dyes containing sulphur dye entities as a constitutional component are dyes of valuable properties, in particular for the dyeing of leather....	10/12/1999
5821373	Solid sloutions of 1,4-diketopyrrolopyrroles Solid solutions consisting of 3,6-bis(biphenyl-4-yl)- 2,5-dihydropyrrolo3,4-c!pyrrole-1,4-dione and either a) a second 1,4-diketopyrrolopyrrole or b) a quinacridone, which are further defined herein, are outstandingly suited to pigmenting high molecular...	10/13/1998
5782934	Process of dyeing with disazo dyes containing a fluorosulphonyl group and use thereof A process for colouring a synthetic textile material or fiber blend thereof which comprises applying to the synthetic textile material a compound of Formula (1): A--N.dbd.N--D--N.dbd.N--E Formula (1) wherein: A, D and E each in...	07/21/1998
5747345	Calcium specific diaza-18-crown-6-ether chromoionophores Diaza-18-crown-6 compounds of the formula I: ##STR1## wherein X is a phenol, naphthol or quinolinol moiety selected from those of the formulae: ##STR2## R1, R2, R3, R4 and R5 are independent...	05/05/1998
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
5190585	Production of pigment compositions The present invention provides processes for the production of a pigment composition comprising: Ia) contacting a pigment, before or during its synthesis, with a water-immiscible carrier medium, and then completing the pigment synthesis to produce a pigme...	03/02/1993
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
4910299	Disperse azo dyes containing N-phenoxyalkyleneanilines as coupling components Disperse dyes suitable for dyeing textile material composed of polyester dyes of the formula ##STR1## in which D is the radical of a substituted or unsubstituted, homocyclic or heterocyclic diazo component belonging to the series comprising thienyl, ...	03/20/1990
4861344	Reactive water-soluble azo dyes containing carboxy- or carbamoyl-pydridinium groups for dyeing textiles Water-soluble azo compounds having useful fiber-reactive dye properties conforming to the general formula ##STR1## in which: A is phenylene which may be substituted or unsubstituted, or is a radical of the formula ##STR2## in which W is a ...	08/29/1989
4724001	Disazoic dye and recording liquid containing the same A naphthalenedisazoic dye represented by general formula (I); ##STR1## wherein Q represents ##STR2## or a naphthalene group substituted by --SO3 M; R represents a methyl group, a methoxy group, an ethoxy group; X represents a hydrogen...	02/09/1988
4647310	Aqueous ink composition for ink jet-recording An aqueous ink composition for ink-jet recording comprising an aqueous solution of a water-soluble dye of formula (I) and a humectant dissolved in water: ##STR1## wherein Ar represents an unsubstituted or substituted phenyl group, or an unsubsti...	03/03/1987
4592756	Dye solution composition A dye solution composition containing a black dye obtained by the action of at least one acid or its salt: on one or a mixture of dyes of the formula (I): ##STR1## wherein R is phenylene or naphthylene residue; X and X' are each H, sulfonic acid grou...	06/03/1986
4441919	Herbicidal compositions Liquid, herbicidal compositions containing Linuron as active substance in the form of emulsifiable concentrates or of aqueous suspension concentrates contain as crystallization inhibiting substance 0.05 to 2% by weight of fat-soluble disazo dyes which pre...	04/10/1984
4376729	Novel monoazo and disazo colorants This invention relates to novel (N-substituted sulfonamido) monoazo and disazo compounds, to acid-addition salts of said azo compounds which are useful as direct dyes particularly in the dyeing of cellulose, to novel (N-substituted sulfonamido) substitute...	03/15/1983
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
4219476	Tertiary aliphatic amidazo compound An unsymmetrical azo compound having the formula ##STR1## is provided wherein R" is an alkyl or aralkyl and R3 and R4 are hydrogen or aliphatic. The compound is useful as a vinyl polymerization initiator, a polyester resin curin...	08/26/1980
4113720	Disperse azo dye with diaminopyrimidine coupling component Disperse azo dyes having a diaminopyrimidine as coupling component. The dyes give brilliant colorations on textile material of synthetic fibers which have excellent fastness properties, including fastness to light and fastness to dry-heat pleating and set...	09/12/1978
4078890	Process for the dyeing and printing of polyester material The invention relates to a process for the dyeing and printing of polyester material in a weakly acid, neutral or alkaline solution of at least one altered dispersion dyestuff water-soluble at an intermediate stage and containing a carbacyl group which is...	03/14/1978
4075199	Tertiary aliphatic alpha-peroxyazo compounds Tertiary-aliphatic alpha-peroxyazo compounds represented by the structure ##STR1## processes for preparing these compounds by reacting ##STR2## with salts or salt solutions of...	02/21/1978
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
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
4028344	଱-ISOCYANATO AND ଱-ISOTHIOCYANATO AZOS AND THEIR DERIVATIVES Azoalkanes of the formula ##STR1## WHERE Z is isocyanate or isothiocyanate or derivatives thereof, such as 1-t-butylazo-1-isothiocyanatocyclohexane, which are useful as foaming agents for polyester resins and as free radical initiators for vinyl ...	06/07/1977
4008273	Tertiary alkyl semicarbazides and their method of preparation Unsymmetrical hydrazo compounds; ##STR1## where (R")3 C-- is a tert-alkyl or tert-aralkyl radical and R3 and R4 are hydrogen, lower aliphatic, cycloaliphatic, or an alkylene biradical. Example: ##STR2## Thes...	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
4001207	Tertiary-aliphatic amidazo compounds Amidazo compounds, (R")3 C--N=N--C(=O)--N(R3)(R4), where (R")3 C-- is t-alkyl or t-aralkyl, such as t-butylazoformamide, which are useful as polyester resin curing agents and the like....	01/04/1977
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
3971739	Tri or tetradentate metal azo pigment complexes A tri- or tetradentate metal complex having the formula ##SPC1## Wherein A is an aryl or heterocyclic residue, B is an aliphatic, aryl or heterocyclic residue, R is an alkyl, cycloalkyl, aryl, aralkyl, or heterocyclic residue or R is the atoms required to...	07/27/1976
3957750	Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary-aralkyl azo) compounds Novel symmetrical bis(unsymmetrical t-alkyl and t-aralkyl azo) compounds of the general formula I: where R = R' = (R")3 C--, e.g., 1,2-ethylene bis(4-t-butylazo-4-cyanovalerate); and the use of I for sequential generation of free radicals, e.g....	05/18/1976
3937761	Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary- aralkyl azo) compounds Novel symmetrical bis(unsymmetrical t-alkyl and t-aralykl azo) compounds of the general formula I: wherein R = R' = (R")3 C--, e.g., 1,2-ethylene bis(4-t-butylazo-4-cyanovalerate); and the use of I for sequential generation of free radicals, e....	02/10/1976

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Class 534/816 - Exactly two azo groups attached indirectly to each other by nonionic bonding