Patents for C09B 29 - Monoazo dyes prepared by diazotising and coupling (4,940)
08/1990
08/21/1990US4950305 Water-insoluble monoazo dyes, their preparation and use, and mixtures of these monoazo dyes
08/16/1990EP0381974A2 Thiophene azo dyes with a coupling component based on m-phenylene diamine
08/07/1990US4946948 Coloring polyolefins
08/07/1990US4946629 Optical element having non-linear optical properties including a substrate having a coating of an azo compound
08/01/1990EP0379872A1 Method of dyeing synthetic fibre materials
07/1990
07/24/1990US4943526 Gamma-glutamyl-4-azoanilides, process for the preparation thereof and diagnostic agents containing them
07/18/1990EP0378510A2 Disperse dyes
07/18/1990EP0378174A2 Light-sensitive element for the diffusion transfer process
07/18/1990EP0378167A1 Disperse dye composition useful for dyeing or printing hydrophobic fiber materials
07/17/1990US4942225 Transfer to active methylene group an azo or diazo group
07/17/1990US4941997 Amphiphilic azo dyes and molecular aggregates thereof
07/12/1990WO1990007436A1 Cover for mirrors of sun visors of motor vehicles
07/10/1990US4940654 Solid particle dispersion filter dyes for photographic compositions
07/10/1990US4940492 Colorant mixtures containing isoquinoline derivatives, use thereof in printing inks, and novel isoquinoline derivatives
07/03/1990US4939118 Transfer of azo dyes having a pyridine coupling component
06/1990
06/23/1990CA2006414A1 Stilbene dyestuffs and light-polarizing films or sheets containing stilbene dyestuffs
06/20/1990EP0373525A2 Crystalline form of a dye and a process for preparing the same
06/13/1990EP0372334A2 Water soluble manoazo dyes, mixtures of the same, their preparation and their use
06/12/1990US4933156 Iodine labeled binding compounds
06/07/1990DE3940081A1 Azo dyes with 1,3,4-thia:di:azole and julolide residues - give fast red to blue shades e.g. on wool and polyamide(s)
06/06/1990EP0371327A2 Monoazo dyes, their preparation and their use
06/05/1990US4931405 Method for manufacturing a semiconductor device and suppressing the generation of bulk microdefects near the substrate surface layer
05/1990
05/29/1990US4929720 Isothiazoleazo hydroxypyridone dyes
05/29/1990CA1269656A1 Dyes containing thiophene radicals
05/23/1990EP0369940A2 Concentrated dye solutions
05/15/1990CA2002726A1 Concentrated dye solutions
05/10/1990DE3936250A1 New benzisothiazole azo dyestuff cpds. for dyeing polyamide and prepn. - with lilolidine, julolidine or tetra:hydro-pyrido:benzoxazine azoic coupler
05/08/1990US4923974 Colorfastness, brightness, build-up
04/1990
04/24/1990US4920208 Basic azo dyestuffs
04/18/1990EP0363904A2 Monoazo disperse dye compounds, their production and their use
04/17/1990US4918183 Monoazo dyes, process for their preparation, and the use thereof
04/17/1990US4917981 Photosensitive member for electrophotography
04/17/1990US4916769 Disperse mono-azo dye mixture for dyeing synthetic textiles
04/11/1990EP0362729A1 Process for producing water insoluble azo dyes on the fibre
04/11/1990EP0362725A1 Process for producing water insoluble azo dyes on the fibre according to the ice-colour technique
04/11/1990EP0362708A2 Thiazole azo dyes with a diazo compound of the isothiazole or thiodiazole series
04/11/1990EP0362637A1 Thiophene azo dyes with a coupling component of the thiazole series
04/05/1990DE3833443A1 Thiazoleazo dyes having a diazo component of the isothiazole or thiadiazole series
04/04/1990EP0361431A2 Monoazo pigment, process for its preparation and its use
03/1990
03/28/1990EP0360644A1 Oxidation dyeing composition containing at least one double and at least one single dyeing base, and dyeing process making use of such a composition
03/28/1990EP0360085A2 Offset printing and offset dyestuffs
03/27/1990US4912203 Thiophene base colorants useful for coloring thermoset resins
03/27/1990US4912001 Electrophotographic photoreceptor comprising azo compound and coupler
03/21/1990EP0359708A2 Monoazo compounds with long-chain alkyl rests
03/21/1990EP0358958A2 Water insoluble monoazo dyes, their preparation and their use, as well as mixtures of these monoazo dyes
03/14/1990EP0358604A2 Disazo compounds containing long-chain alkyl, ester or alkylamino rests
03/14/1990EP0357780A1 Optical head
03/13/1990US4908437 Thien-2-one compounds with an alkylidene or imino group in the 5-position of the ring
03/13/1990US4908042 Dyeing or printing high molecular weight polyester
03/13/1990US4908041 Navy and black dye mixtures: thiophene azo disperse dye and red, yellow or orange disperse dye
03/06/1990US4906740 Monoazo dyes containing as the azo component A phenylsulfonylphenyl radical
03/06/1990US4906735 Process for the manufacture of a monoazo acetoacetylaminobenzimidazolone
03/06/1990US4906250 Process for the preparation of water-insoluble azo dyes on the fiber: impregnating with coupling component and treating with diazonium salt of 4-chloro-2,5-dialkoxy aniline
02/1990
02/28/1990EP0356393A2 Process for the preparation of metallisable monoazo dyes
02/27/1990US4904777 Colorfastness
02/27/1990US4904765 Dye mixtures containing an oil-soluble dye and an acid-extractable dye
02/27/1990US4904712 5-Higher alkyl substituted-2H-benzotriazoles in stabilized compositions
02/20/1990US4902787 Method for producing lightfast disperse dyestuffs containing a build-in photostabilizer [molecule] compound
02/06/1990US4898850 Pyridone dyestuff for thermal transfer recording and printing sheets and methods employing same
01/1990
01/16/1990US4894447 Textiles, polyamides, paper
01/10/1990EP0350254A2 Reducible compounds which provide leuco dyes, and analytical compositions, elements and methods containing same
01/10/1990EP0350253A2 Reducible compounds which provide aniline dyes, and analytical compositions, elements and methods using same
01/09/1990US4892859 Thermal transfer printing
01/03/1990EP0349486A2 Azo dyes, their preparation and their use
01/03/1990EP0348826A2 Isobenzothiazolone chromogenic thiol indicators and their derivatives
12/1989
12/27/1989EP0347680A2 Azo dyes
12/26/1989US4889535 4-Substituted benzothiazol-2-ylazo-N-c8-14-alkykl-N-(2'-cyanoethyl)anilines optionally having a 3-C1-4-alkyl group
12/20/1989EP0346729A2 Azo dye transfer process with a pyridine coupling component
12/20/1989EP0346691A2 Process for dyeing thermoplastic materials in the mass
12/19/1989US4888432 Dehydrogenaiton, cyclization of thioamide
12/13/1989EP0345763A2 Recording solution
12/12/1989US4886517 Good water solubility
12/12/1989CA1263860A1 Organic compounds
12/06/1989EP0344592A2 Process for azo dye transfer
12/06/1989EP0344487A2 Azo dyes of the 5-aminoisothiazole series
12/05/1989US4885272 Photostability; hues; thermography
11/1989
11/21/1989US4881977 Water-soluble yellow monoazo dyestuffs
11/21/1989US4881943 Disperse dyes: nitro-thiophene azo dyes for bright blue shades on polyester
11/16/1989DE3914430A1 Azo dyes, preparation thereof and use thereof
11/08/1989EP0341214A2 Basic 6-hydroxypyrid-2-one compounds
11/08/1989EP0341206A1 Fiber reactive formazane dyes
11/08/1989EP0340723A2 Thiadiazolyl-azo-pyrazole yellow dye-donor element for thermal dye transfer
11/08/1989CN1036974A Preparing method for n.n-cyano-ethyal cyano-benzyl cyanol dyestuff
11/07/1989US4879373 Azo dyes
11/02/1989WO1989010384A1 Lightfast disperse dyestuffs
10/1989
10/31/1989US4877412 Sulfo group-containing monoazo compounds having an unsubstituted or substituted 4-(benzothiazol-2'-yl)phenyl or 4-(6'-benzothiazol-2"yl)-benzothiazol-2'-yl)phenyldiazo component radical and a 6-hydroxypyrid-2-one coupling component radical
10/24/1989US4875903 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
10/18/1989EP0337948A1 Disperse dyes
10/17/1989US4874847 Process for the diazotisation of primary aromatic amines which are sparingly soluble in water
10/17/1989US4874392 Monoazo dyes having a substituted 1,4-phenylene coupling component radical having one C8-14 alkyl group or moiety
10/04/1989EP0335834A2 Heteroaromatic azo dyes
10/04/1989EP0335234A2 Azo isoathiazole dyes
10/03/1989US4871655 Monoazo dye
09/1989
09/19/1989CA1259608A1 Process for producing azo pigment
09/14/1989DE3906066A1 Azo dyes, preparation thereof and use thereof
09/14/1989DE3906060A1 Azo dyes, preparation thereof and use thereof
09/13/1989EP0332334A2 Disperse dyes
09/12/1989US4866113 Compounds useful as pigments containing one or more 2,2,6,6-tetraalkylpiperidine groups
09/12/1989US4865935 Photosensitive member comprising an azo pigment
09/06/1989EP0331170A2 Heat-sensitive transfer material
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