Patents in Class 534/735

Matches 1 - 50 out of 120

1 2 3 >

Match	Document	Document Title
1	6294289	Cyano-substituted methide and amide salts Amide and methide salts, comprising in the case of an amide salt one cyano (--CN) group, and in the case of a methide salt, two cyano groups are described in applications requiring a high degree of...
2	5550218	Azo compounds having unsubstituted or substituted 2-phenoxycarbonylethyl groups Compounds of the formula ##STR1## wherein A is C 1 -6 alkylene, D is a diazo component radical of the triazolyl, pyrazolyl, cyano(C 1 -4 alkyl)-imidazolyl, 4-chlorothiazolyl, 4-chlorotheinyl-2,...
3	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...
4	5102994	Disperse azo dyestuffs containing a thiocyonate group Water-insoluble dyestuffs of the formula I ##STR1## wherein K denotes the radical of a coupling component of the aniline series, X denotes Cl, Br, Cn or COOZ, Y denotes H, Cl, Br or CN and ...
5	5028701	Monazo compounds containing a 1-phenyl-2-pyrazoline coupling component Disperse dyestuffs of the formula ##STR1## in which A/B denotes H, alkyl, C1 or O-alkyl, R 1 , R 2 , R 3 denote H or alkyl, R 4 denotes alkyl, aryl or COO-alkyl, R 5 denotes alkyl or...
6	4978747	Colorants obtained by reacting a NH.sub.2 -containing dyestuff with a diisocyanate followed by reaction of this adduct with a diamine Colorants are obtained by reacting a dyestuff which is free from ionic groups and has≥2 NH 2 groups which are preferably arranged in such a manner that they do not participate in the resonance...
7	4912203	Thiophene base colorants useful for coloring thermoset resins Thiophene based colorants useful for coloring thermoset resins such as polyurethanes being the formula; ##STR1## wherein R 1 , R 2 and R 3 are selected from halogen, carboxylic acid, alkanoyl,...
8	4908435	Aromatic disazo compounds having strong infra-red absorption An azo compound of the formula: A--NN--B--NN--D wherein: A is (i) a phenyl group containing at least two unsaturated electron-withdrawing groups in ortho or para positions with respect...
9	4795807	Preparation of azo dyestuffs by diazotization and coupling in the presence of an ester Azo disperse dyestuffs are prepared by diazotization and coupling in an aqueous phase, the coupling being carried out in the presence of an ester of a lower aliphatic carboxylic acid.
10	4775748	Reactive colorants Novel reactive colorants being the formula: ##STR1## wherein R 1 , R 2 and R 3 are selected from halogen, carboxylic acid, alkanoyl, aryloyl, carbocyclic forming polymethylene chains, alkyl,...
11	4619993	Azo compounds having a 2,4-dinitro-5-thiocyanophenyl diazo component radical Compounds of the formula ##STR1## wherein K is a coupling component radical, are useful for dyeing textile materials comprising a synthetic or semisynthetic, hydrophobic, high molecular weight...
12	4593087	Disperse and acid azo dyes having one or two cinnamoyl substituents on a thiazole, isothiazole or thiadiazole diazonium moiety and having an aniline, tetrahydroquinoline or benzomorpholine coupler Disclosed are azo dyes containing diazonium moieties from aminothiazoles, aminoisothiazoles, or aminothiadiazoles (1,2,4- or 1,3,4-), and certain coupler moieties from aniline, tetrahydroquinoline,...
13	4482484	Compounds and hapten-immunoglobulin conjugates derived from them Compounds of formula (I) ##STR1## in which n is 1 or 2, R 1 is C 1 -4 alkyl, C 1 -4 alkoxy, nitro, amino, halo or hydroxy, m is 0, 1 or 2, R 2 is an immunogenic determinant and x is 1 or 2,...
14	4476053	Surface-active azo compounds Surface-active azo compounds corresponding to the following general formula ##STR1## in which ##STR2## R represents C 1 -C 4 -alkyl, R 1 represents the residue diminished by the isocyanate...
15	4442032	Isothiocyanato-azobenzene-sulfonic, arsonic and substituted-glutamic acid haptens Compounds of formula (I) ##STR1## in which n is 1 or 2, R 1 is C 1 -4 alkyl, C 1 -4 alkoxy, nitro, amino, halo or hydroxy, m is 0, 1 or 2, R 2 is an immunogenic determinant and x is 1 or 2,...
16	4307015	Azo compounds having a 2-acyloxy-, alkoxy-, substituted alkoxy-or hydroxy-3-alkynyloxy or substituted alkenyloxy-propyl group Compounds of the formula ##STR1## wherein D is a diazo component radical, K is the radical of a coupling component of the 1,4-phenylene or 1,4-naphthylene series, R 1 is hydrogen; alkyl; or...
17	4301068	Azo dyes from a 2-aminothiophene having 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydrocyalkyl) carbamoyl groups on its ring This invention relates to azo dyes in which the diazotized 2-aminothiophene bears 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring. These dyes have excellent...
18	4301069	Azo dyes from five membered ring heterocyclic amines and aniline, tetrahydroquinoline and benzomorpholine couplers containing thiosulfate alkyl groups Disclosed are mono azo dyes derived from diazotized 5-membered heterocyclic amines and certain aniline, 1,2,3,4-tetrahydroquinoline, and benzomorpholine couplers containing thiosulfate alkyl...
19	4301070	Azo dyes from a 5-aminopyrazole bearing 1 to 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl) carbamoyl groups on its ring This invention relates to azo dyes in which the diazotized amino component bears 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring. These dyes have excellent...
20	4301071	Azo dyes from aniline having 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring This invention relates to azo dyes in which the diazotized amino component bears 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring. These dyes have excellent...
21	4282144	Azo dyes derived from 5-membered heterocyclic amines and aromatic amine couplers containing sulfo groups, or salts thereof Disclosed are mono azo dyes derived from diazotized 5-membered heterocyclic amines and certain aniline, 1,2,3,4-tetrahydroquinoline, and benzomorpholine couplers containing sulfoalkyl groups. These...
22	4271071	Heterocyclic monoazo compounds from alkyl-3-(phenylamino)butyrates Monoazo compounds having a heterocyclic diazo component and an alkyl-3-(phenylamino)butyrate are useful as dyes for synthetic fibers such as cellulose acetate, cellulose triacetate, Nylon and...
23	4264495	2-Thienyl azo dyestuff compounds Azo compounds having the formula ##STR1## in which R 1 is cyano, aryl, an acyl radical or a carbamoyl radical, R 2 is hydrogen, alkyl, alkoxy, aralkyl or aryl, R 3 is alkyl, halogen,...
24	4255326	Nitrogen and/or sulfur containing heterocyclic azo dyes with aniline, tetrahydroquinoline and benzomorpholine couplers having sulfate group Disclosed are azo dyes prepared by diazotizing heterocyclic amines such as 2-aminobenzothiazole, 3-amino-2,1-benzisothiazole, 5-amino-1,2,4-thiadiazole, 5-aminoisothiazole, 5-aminopyrazole,...
25	4218372	Azo compounds having a β-alkynyloxy carbonylalkyl group on the coupling component radical Compounds of the formula, ##STR1## in which D is a diazo component radical of the benzene, pyrazole, thiophene, thiazole, isothiazole or thiadiazole series, K is 1,4-phenylene, substituted...
26	4208324	Disperse diaminopyridine-3-azo dyestuffs Azo dyes which are free from acid water-solubilizing groups and correspond to the formula ##STR1## wherein two radicals Z represent groups of the formula --NR'R" and one of the radicals Z represent...
27	4189428	Thiazolylazo and benzothiazolylazo compounds from cyclohexylaminoacylanilides Substituted thiazolylazo and benzothiazolylazo compounds having a cyclohexylaminoacylanilide coupling component are useful as dyes for polyester textile materials on which the compounds exhibit...
28	4145342	Nitro-diphenylamino-azo-phenyl dyestuffs containing a polyalkyeneoxy group Disperse dyestuffs of the formula ##STR1## wherein Q 1 and Q 2 are hydrogen or the group V-(A-O) n Z, but do not at the same time represent hydrogen, A -- denotes an alkylene group, V --...
29	4140684	Azo dyes having a 6-hydroxy-pyridone-2 coupling component radical having a substituent in the 1-position Dyes of the formula ##STR1## wherein R 1 is a carbocyclic or heterocyclic diazo component radical, R 2 is cyano or acyl, R 3 is alkyl, carbocyclic aryl or heterocyclyl, or a substituted...
30	4115381	Azo dyestuffs having a carboxyl group and an iminosulfonamido, iminosulfonylalkyl or iminosulfonylaryl group in the coupling component Dyestuffs of the formula ##STR1## wherein D is a diazo component of the benzene series, R 1 is an alkyl radical, R 2 is alkylene and R is alkyl, aryl or di-substituted amino, dye...
31	4105653	Heteryl-azo-phenyl disperse dyestuffs containing a Z-substituted benzolyloxyalkyl radical, wherein Z is 2-cyanovinyl 2-cyanoethyl or 2-chloro-2-cyanoethyl A dyestuff of the formula: ##STR1## in which A is thiazolyl, isothiazolyl, benzothiazolyl, benzisothiazolyl, thiadiazolyl, thienyl, or imidazolyl which is unsubstituted or substituted by one to...
32	4088642	Compounds having both peroxy and aliphatic azo groups I. Compounds having independent peroxidic (X) and aliphatic azo groups of the formula [(R-NN-R') m -X] n Example: di-t-butylperoxy ester of cis-4,4'-azobis-(4-cyanovaleric acid). Ii. a method...
33	4052379	Dyes from trifluoromethyl-2-aminobenzothiazole diazo components Azo dyes having the general formula: ##STR1## wherein R 1 represents a substituent selected from the group consisting of hydrogen, methyl, ethyl, methoxy, ethoxy, halogen, nitro, acetyl,...
34	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...
35	4041024	Sulfo containing monoazo dyestuffs containing a benzthiazole diazo moiety and an N-benzylamino anilino coupling component Azo dyestuffs of formula ##STR1## wherein R 1 denotes hydrogen, C 1 --C 4 alkyl, Cl, Br, --OCH 3 , --OC 2 H 5 , --NO 2 , --CN, --SCN, --SO 2 CH 3 , --SO 2 C 2 H 5 , --SO 3 H, --SO 2 NX 2 ...
36	4039524	Keto-amido containing phenylazo benzothiazole dyestuffs A benzothiazole azo dyestuff containing a benzene coupling component which, para to the azo bridge, is substituted by a secondary or tertiary amine group containing one or two N-bonded --C 2 H 4 ...
37	4028344	α-ISOCYANATO AND α-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...
38	4011208	3-Cyano or acyl-4-aryl-5-arylazo-6-hydroxypyridone-2 dyes Compounds of the formula ##STR1## wherein R 1 is a benzene or naphthalene diazo component, R 2 is cyano or acyl, and R 3 is phenyl, naphthyl or heterocyclyl, or a substituted derivative...
39	4009158	Mixtures of azo compounds having a 2-nitro-4-phenylsulfamoyldiphenyl amine nucleus Compounds of the formula ##STR1## AND MIXTURES THEREOF, WHEREIN E is phenyl, substituted phenyl, naphthyl, methylsulfonylnaphthyl, thiazolyl, substituted thiazolyl, benzothiazolyl, substituted...
40	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 R 3 and R 4 are hydrogen, lower aliphatic, cycloaliphatic, or an alkylene biradical....
41	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(R 1 )(R 2 )(Z) or ##STR1## e.g., 1-t-butylazo-1-chlorocyclohexane, their use as vinyl...
42	4001207	Tertiary-aliphatic amidazo compounds Amidazo compounds, (R") 3 C--N=N--C(=O)--N(R 3 )(R 4 ), 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.
43	3998803	5-Arylazo-6-hydroxy-pyridone-2 dyes containing an amino or substituted amino group Dyes of the formula ##STR1## wherein R 1 is hydrogen or cyano, R 2 is alkyl, aryl or heterocyclyl, or a substituted derivative there f, R 20 is hydrocarbyl, heterocyclyl or amino, or a...
44	3987027	Phenyl azophenyl dyestuff Dyestuff of the formula: ##SPC1## In which m is equal to 0 or 1, n is equal to 1, 2 or 3, A represents the residue of an aromatic or heterocyclic diazotizable amine devoid of solubilizing acid...
45	3987026	Transiently water-soluble non-heterocyclic azo and disazo disperse dyestuffs Transiently water-soluble dyestuffs of the formula ##EQU1## WHEREIN F is a radical of a non-heterocyclic azo disperse dyestuff containing no groups which dissociate in water, n is 1 or 2, X is an...
46	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...
47	3971771	Monoazo compounds Disperse azo dyestuffs of the formula ##EQU1## where D is the residue of a diazo component of the benzene series, A is the residue of a coupling component of the aminobenzene series, R 1 is...
48	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: r -- n = n -- r 12 -- n = n -- r' (i) where R = R' = (R") 3 C--, e.g.,...
49	3956268	Substituted phenyl-azo-phenylene-azo-phenyl dyes This invention provides novel disperse dyes of formula I, ##SPC1## in which R 1 signifies hydrogen, cyano, alkyl or alkoxy, R 2 signifies unsubstituted alkylcarbonyloxy; alkylcarbonyloxy...
50	3943120	Succinimido azo dyestuffs The invention relates to water-insoluble azo dyestuffs of the formula ##SPC1## In which A represents the residue of a diazo component of the azobenzene series, R 1 a hydrogen atom or an alkyl...

Matches 1 - 50 out of 120

1 2 3 >