| Patents for C09B 57 - Other synthetic dyes of known constitution (5,224) | 
|---|
| 12/02/1980 | US4237293 Colorfast shades of yellow to red for plastics and lacquers | 
| 12/02/1980 | US4237292 Metal complexes of azomethines | 
| 12/02/1980 | US4237286 Coloring plastics and lacquers in yellow to red shades | 
| 11/26/1980 | EP0019588A1 Method of pigmenting lacquers of a high molecular organic material by means of a pigment of the isoindoline series | 
| 11/26/1980 | EP0019182A1 Benzofuran derivatives and their use as optical brighteners | 
| 11/25/1980 | US4236007 Naphtholactam dyestuffs | 
| 11/25/1980 | US4236003 V-Triazolyl-[4,5-d]-pyrimidH. | 
| 11/25/1980 | CA1090338A1 1,4-bis-¬azol-2'-yl|-naphthalenes | 
| 11/18/1980 | US4234677 Antihalation agents, mordants, and filters | 
| 11/18/1980 | US4234488 Benz-[c,d]-indolyl compounds | 
| 11/18/1980 | CA1089856A1 V-triazolyl-¬4,5-d|-pyrimidines | 
| 11/12/1980 | EP0018589A2 Process for the preparation of insoluble metal complex dyes | 
| 11/11/1980 | US4233440 Optical brighteners | 
| 11/04/1980 | US4231957 Phosphonium compounds, a process for their preparation and a process for the preparation of asymmetrically substituted stilbene fluorescent brightening agents | 
| 11/04/1980 | US4231931 Yellow to red hues | 
| 11/04/1980 | US4231741 Benzoxazolyl-stilbenes and aryltriazoles; synergistic | 
| 10/28/1980 | CA1088659A1 Azaquinolone dye lasers | 
| 10/28/1980 | CA1088259A1 Brightener mixtures and their use | 
| 10/21/1980 | US4229577 Improved reactivity, minimal fog, high fastness to light | 
| 10/21/1980 | CA1088066A1 Nitrated couplers used as direct, oxydation and mixed dyes | 
| 10/15/1980 | EP0017621A1 Derivatives of naphtholactam, process for their preparation and their use as dyestuffs | 
| 10/15/1980 | EP0017214A1 Isoindoline dyestuffs and their utilisation | 
| 10/15/1980 | EP0017132A1 Dyestuffs, their preparation and utilisation | 
| 10/15/1980 | EP0017012A2 Dyes and process for the generation of tints based on optionally substituted 2-amino-5-iminopyrrolenines | 
| 10/15/1980 | EP0017009A2 Dyes and tints based on optionally substituted 2-amino-5-iminopyrrolenines | 
| 10/15/1980 | EP0017003A1 Isoindoline dyestuffs and their use as pigments | 
| 10/14/1980 | US4228259 Water-soluble cationic polymer dye compounds and process for producing the same | 
| 10/07/1980 | US4226595 Oxidation hair-coloring preparation based upon N,N-bis-(β-hydroxyethyl)-m-phenylenediamines | 
| 10/01/1980 | EP0016418A1 Water-insoluble imino coumarin dyestuffs, process for their preparation and their use | 
| 09/23/1980 | CA1086318A1 Naphtholactam dyestuffs | 
| 09/17/1980 | EP0015570A1 Isoindolin pigments and their use | 
| 09/17/1980 | EP0015511A2 Use of oligo- or polymeric compounds in dyeing lignin-free paper material | 
| 09/17/1980 | EP0015361A1 Cumarinic pigments, process for their preparation and their use | 
| 09/16/1980 | US4223152 Process for purifying crude isoindolinone series pigments | 
| 09/16/1980 | US4222788 Mixed pigment and process of preparing the same | 
| 09/16/1980 | US4222739 Certain bis(phenyl)-benzodifurans | 
| 09/16/1980 | CA1085839A1 Naphtholactam dyestuffs | 
| 09/09/1980 | US4221911 Naphtholactam dyestuffs | 
| 09/09/1980 | US4221562 Quaternary ammonium substituted, with glutaraldehyde or glyoxal, for printing cellulose | 
| 09/09/1980 | CA1085395A1 Isoindoline pigments and processes for their preparation and use | 
| 09/02/1980 | US4220780 Cationic dyestuffs | 
| 09/02/1980 | US4220777 Naphthalimide derivatives | 
| 09/02/1980 | US4220760 Optical brighteners | 
| 09/02/1980 | US4220356 Recording materials containing chromenoindoles | 
| 08/26/1980 | CA1084526A1 Metaaminophenols and tinctorial compositions having same | 
| 08/26/1980 | CA1084511A1 Process for the manufacture of 2,5-bis-(benzoxazolyl)- thiophene compounds | 
| 08/26/1980 | CA1084509A1 Stilbene compounds and process for preparing same | 
| 08/26/1980 | CA1084501A1 Benzimidazo- 1,2-a -quinolines and process for their preparation | 
| 08/20/1980 | EP0014411A1 Process for the preparation of benzimidazolylbenzofurans | 
| 08/20/1980 | EP0014344A1 Coumarin compounds, process for their preparation and their use as whiteners and laser dyes | 
| 08/20/1980 | EP0014307A1 1.4-Distyrylbenzene derivatives, their preparation and their use as optical brighteners and laser dyes | 
| 08/19/1980 | CA1084061A1 Divinyl stilbenes as optical brighteners | 
| 08/12/1980 | US4217449 Process for the preparation of bis-triazolylstilbenes | 
| 08/12/1980 | CA1083578A1 Benzofuran derivatives, process for their manufacture and their use as optical brighteners | 
| 08/06/1980 | EP0014177A1 Bis-styrylbenzenesulfonic acid compound, process for its preparation and its use for optical bleaching of organic fibrous materials | 
| 08/06/1980 | EP0013981A1 Colourless preparations of optical brighteners of the bis-triazinylamino-stilbene-disulfonic acid compound series | 
| 08/06/1980 | EP0013751A2 Use of quaternised compounds in dyeing paper | 
| 08/05/1980 | US4216111 Stable dispersions of fluorescent whitening agents of the bis-triazinylaminostilbene group in free acid form and method of preparing same | 
| 08/05/1980 | CA1082973A1 Carrier with coating of resin and copper tetra-4- (octadecylsulfonamido) phthalocyanine and use thereof in colour electrophotographic development | 
| 07/29/1980 | US4215010 Substituted 1,3,3-trimethylspiro(indoline-2,3'-(3h)-napth(2,1-b)(1,4)oxazine) | 
| 07/29/1980 | CA1082832A1 Perinone compounds, process for preparing them and their use as dyes | 
| 07/15/1980 | US4212763 Bis-triazinylaminostilbene compounds and their use as fluorescent brightening agents | 
| 07/08/1980 | US4211872 Substituted furopyridinones and furopyrazinones | 
| 07/01/1980 | US4210757 Novel naphthoylene-perinones disperse dyestuffs | 
| 07/01/1980 | US4210591 Pressure sensitive or heat sensitive recording materials | 
| 07/01/1980 | CA1080718A1 2-stilbenyl-1,2,3-triazoles which contain carboxyl groups | 
| 07/01/1980 | CA1080624A1 Oxidation hair-coloring preparation based upon n,n-bis-(b-hydroxyethyl)-m-phenylenediamines | 
| 06/25/1980 | EP0012291A1 Process for the preparation of benzimidazolyl benzofuranes | 
| 06/17/1980 | US4208513 Benzoxazolyl-phenylstilbenes, processes for producing them, and their use as optical brighteners | 
| 06/17/1980 | US4208183 Process for improving the storage stability of indole dyestuffs | 
| 06/11/1980 | EP0011824A1 Benzofuranyl-benzimidazoles, process for their preparation and their use in the optical bleaching of organic materials | 
| 06/03/1980 | US4206072 Benzoxazolyl-phenyl-stilbenes | 
| 05/28/1980 | EP0011078A1 Process for the manufacture of the pure sodium hydroxide addition compounds of cis-naphthoylene-bis-benzimidazoles | 
| 05/20/1980 | US4204073 Trimethyl oxo or hydroxy-substituted cyclopentenes; intermediates for violerythrin and actinioerythrol | 
| 05/20/1980 | US4203722 Transfer printing process with naphtholactam dyes | 
| 05/20/1980 | CA1077955A1 Sensitizers for photoconductive compositions | 
| 05/14/1980 | EP0010740A1 Spirodipyranes and their use as colour formers in copying processes | 
| 05/14/1980 | EP0010652A1 4-Chlorooxazoles, method for their preparation and their use in photoconductive coatings in electrophotography and as optical brighteners | 
| 05/14/1980 | EP0010607A1 Triazolylstyryl compounds and their use as whiteners for organic materials | 
| 05/13/1980 | US4202981 Substituted -6,7,8,9-tetrahydro-pyrido- and 2H-pyrano [2,3-b][1,8]naphthyridines, stable efficient laser dyes | 
| 05/13/1980 | CA1077489A1 Benzofuran derivatives, process for their preparation and their use as optical brighteners | 
| 05/06/1980 | US4201713 Naphthostyril dyestuffs | 
| 04/29/1980 | US4200753 Water-soluble fluorescing and lasing dyes | 
| 04/29/1980 | US4200752 Fluorescent dyes | 
| 04/16/1980 | EP0010063A2 Process for the preparation of furanyl-benzazoles | 
| 04/16/1980 | EP0009679A1 Fluorescent dyestuffs of the stilbene series, process for their preparation and their use in the whitening of organic materials and as laser dyestuffs | 
| 04/08/1980 | US4197401 Stilbenes, process for the manufacture thereof and the use thereof as optical brighteners | 
| 04/08/1980 | CA1074957A1 Process for the dyeing and printing of synthetic polyamides | 
| 04/02/1980 | EP0009095A1 1.3.4-Oxadiazole-2-one derivatives, processes for their preparation and their use as optical brighteners | 
| 04/01/1980 | US4196146 Making nitrodiarylamines from formyl derivatives of aromatic amines and nitrohaloarenes by admixing with certain aqueous salt solutions | 
| 04/01/1980 | CA1074806A1 Diazaphenalene derivatives | 
| 04/01/1980 | CA1074786A1 Metal complexes of bishydrazides | 
| 04/01/1980 | CA1074553A1 Azacoumarin dye lasers | 
| 03/25/1980 | CA1074328A1 Substituted 1,4-bis-styrylbenzene and 4,4'bis-styrylbiphenyl and their use as optical brightners | 
| 03/19/1980 | EP0008669A1 Colour-fast preparations of detergent brighteners and process for their production | 
| 03/11/1980 | CA1073462A1 Cationic alpha-cyano-p-dimethyl aminocinnamoyl dyes | 
| 03/04/1980 | US4191566 Electrophotographic imaging process using anthraquinoid black pigments or metal complexes | 
| 02/26/1980 | US4190726 Polycyclic dyestuffs | 
| 02/19/1980 | US4189589 Phenyl-benzimidazolyl-furanes | 
| 02/19/1980 | CA1072238A1 Process for the dyeing of thermoplastics in the melt |