| Patents for C09B 67 - Influencing the physical, e.g. the dyeing or printing, properties of dyestuffs without chemical reaction, e.g. by treating with solvents; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films (19,338) |
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| 10/02/1991 | EP0449016A1 Nacre-effect pigments coated with organic dyes |
| 10/01/1991 | US5053495 Anionic dye having high water-fastness |
| 10/01/1991 | US5053052 2-substituted para-aminophenols and their use for dyeing keratinous fibres |
| 10/01/1991 | CA2039479A1 Process for the production of pigments |
| 10/01/1991 | CA1289964C Compositions based on a 1,4-diketo-pyrrolo¬3,4-c| pyrrole and a chemically modified derivative thereof, process for their preparation and use thereof |
| 09/26/1991 | DE4108596A1 Water-soluble dye suspension concn. - by dilution, sepn. into retentate and permeate and concn. of retentate, used for photographic dyes, inks etc. |
| 09/25/1991 | EP0448347A2 Pigment composition |
| 09/25/1991 | CN1014023B Process for dyeing keratinous fibres with 5,6-dihydroxyindole combined with an iodide and dyeing composition employed |
| 09/25/1991 | CN1014022B Process for dyeing keratinous fibre with 5,6-dihydroxyindole and hydrogen penoxide |
| 09/24/1991 | US5051131 Azo dispersing agents and azo pigment compositions |
| 09/24/1991 | US5051111 Containing copolymer of vinylpyrrolidone and vinylpropionic acid; storage and temperature stable |
| 09/23/1991 | WO1991014744A1 Monoazo pigment compositions |
| 09/23/1991 | CA2078862A1 Monoazo pigment compositions |
| 09/19/1991 | WO1991013941A1 Water-insoluble azo dyes, their manufacture and use |
| 09/19/1991 | WO1991013931A2 Process for manufacturing pigment concentrates |
| 09/19/1991 | DE4008262A1 Stable aq. soln. of anionic pref. reactive dyestuff prodn. |
| 09/18/1991 | EP0446732A2 Process for the manufacture of storage stable dye solutions |
| 09/18/1991 | EP0446731A2 Process for the manufacture of azo dyes |
| 09/18/1991 | EP0446472A2 Process for the manufacture of perylene-3,4,9,10-tetracarboxylic acid diimides in a pigmentary form with a high tinctorial value |
| 09/17/1991 | US5049238 Naphthol dyes |
| 09/17/1991 | US5049161 Mixtures of dicyanobenzanthrone compounds |
| 09/15/1991 | WO1991013943A1 Improved organic pigments, process for preparing them and their use in paints |
| 09/15/1991 | CA2078124A1 Organic pigments, process for preparing them and their use in paints |
| 09/12/1991 | DE4007728A1 Perylene-3,4,9,10-tetra:carboxylic acid di:imide pigments prepn. |
| 09/12/1991 | DE4007535A1 Wasserunloesliche azofarbmittel, ihre herstellung und verwendung Water-insoluble azo colorants, their production and use |
| 09/11/1991 | EP0446168A1 Method for determining paint- and printing formulae from a colour original |
| 09/11/1991 | EP0446132A1 Keratinous fibres dyeing process with 6 or 7-monohydroxyindols at acidic pH and compositions |
| 09/11/1991 | EP0445768A2 Photoconductive material and electrophotographic photoreceptor using the same |
| 09/11/1991 | EP0445498A1 Method for making a liquid solid dispersion |
| 09/10/1991 | US5047067 Using A Bromamic Acid-Condensed Reactive Dye And Two Copper-Formazane Reactive Dyes |
| 09/10/1991 | CA1288552C Bleaching and bluing compositions and method |
| 09/04/1991 | EP0445072A2 Preparation of metallised azo pigments |
| 09/04/1991 | EP0444786A1 Preparation and use of dyes |
| 09/03/1991 | US5045524 Yellow dye mixture for thermal color proofing |
| 09/03/1991 | US5045084 Polyamides |
| 09/03/1991 | CA1288239C Process for preparing ink compositions for ink-jet printer |
| 08/28/1991 | EP0443563A1 Electrophotographic recording elements containing titanyl phthalocyanine pigments and their preparation |
| 08/27/1991 | US5043376 Liquid-dispersible, polymeric colorant compositions and aqueous dispersions |
| 08/27/1991 | US5043317 Yellow dye mixture for thermal color proofing |
| 08/27/1991 | CA1288109C Surfactant |
| 08/22/1991 | DE4031898A1 Ultrafine particles prodn. and recovery by vapour deposition - where particle carrier is moved within gas phase in chamber and ultrafine particles are evaporated by heating vaporisable material |
| 08/21/1991 | EP0442477A1 Disperse dye mixture |
| 08/20/1991 | US5041539 Preparation of aqueous concentrates of yellow azo and azoxystilbene dyes utilizing alkanolamine salts |
| 08/20/1991 | US5041477 Oligomeric aromatic dispersing agents, method of making same, and dispersions made therefrom |
| 08/20/1991 | US5041163 Flushed pigment and a method for making the same |
| 08/20/1991 | CA1287703C Process for the preparation and conditioning of organic pigments |
| 08/14/1991 | EP0441166A2 Use of specific disperse dyes in the preparation of finished, thermomigration-resisant dyeings |
| 08/14/1991 | DE4003887A1 Orange-dyed polyester fabrics with good wash fastness - are dyed with specified azo dyes followed by application of fabric finish |
| 08/13/1991 | US5039586 With titanyl phthalocyanine as charge generating compound; sensitivity, chargeability, stability |
| 08/13/1991 | US5038415 Bath stability; level dyeing |
| 08/07/1991 | CN1053624A Tri-idiochromatic fluorescent pigment and its preparation |
| 08/06/1991 | US5037962 Storage stability; suitable for printing or dyeing polyesters, cellulose ester fibers, wool and staple |
| 08/06/1991 | US5037799 Dispersion in a polymeric binder on a support |
| 08/06/1991 | US5037564 Low acid value lanolin fatty acid and/or salt for dispersing a finely divided solid powder |
| 07/31/1991 | EP0439233A1 Use of a plastic dispersion as coating for inorganic and organic particles |
| 07/31/1991 | EP0439057A1 Monoazo dyes, their preparation and use |
| 07/31/1991 | EP0439054A1 Monoazo dyes, their preparation and use |
| 07/31/1991 | EP0439038A1 Monoazo dyes, their preparation and use |
| 07/30/1991 | US5035747 Mixed crystal pigments of the anthanthrone series, and preparation and use thereof |
| 07/25/1991 | DE4001708A1 New mono:azo dyestuff cpds., prepn. used in dyeing hydrophobic fibre - which are di:cyano benzene azo acyl allyl cyano-alkyl phenylene di:amine cpds. |
| 07/23/1991 | US5034508 Dispersant for nonaqueous systems |
| 07/23/1991 | US5034277 Film comprising at least one unimolecular layer |
| 07/23/1991 | US5034063 Dispersant-containing disazo pigment composition |
| 07/23/1991 | US5034016 Dye compositions for dyeing denim cotton yarn in a range of colors and dyeing process and dyed articles using same |
| 07/17/1991 | EP0437184A1 Process of trichromie dyeing or printing of cellulose containing textile fibre materials |
| 07/17/1991 | EP0436867A1 Colour-fast beta modification of a monoazo dye, process for its preparation and its use |
| 07/16/1991 | US5032142 Trichromatic azo dye mixtures and their use for dyeing cellulose and leather |
| 07/09/1991 | WO1991010693A1 Copolymerized methine colorant-polyester color concentrates |
| 07/09/1991 | US5030734 Solid solutions of azomethine pigments |
| 07/09/1991 | US5030669 Pigment dispersions |
| 07/09/1991 | US5030283 Pastelike pigment formulations and preparation and use thereof |
| 07/09/1991 | US5030247 Mixtures of disazo compounds containing two phenyl diazo component radicals having one or two (C1-4 alkoxy)carbonyl groups and a bis-acetoacetamido-arylene coupling radical |
| 07/09/1991 | US5030245 Anionic polycarboxylated surfactants as dye-leveling agents used in combination with a stainblocker for fibers |
| 07/09/1991 | US5030244 Preparation of granules of dyes, optical whiteners or photoactivators from an aqueous suspension of naphthalene sulfonic acid-formaldehyde condensate dispersant |
| 07/09/1991 | CA1285710C Copper phthalocyanine pigments |
| 07/03/1991 | EP0435149A2 Method of producing 3-dibutylamino-6-methyl-7-anilinofluoran |
| 07/03/1991 | EP0434769A1 Cover for mirrors of sun visors of motor vehicles |
| 07/02/1991 | US5028467 Dithiolate metal complex compound, production method of the same, and optical information recording medium comprising the same |
| 07/02/1991 | US5028337 Coated membranes |
| 06/27/1991 | WO1991009063A1 Low molecular weight copolymer amides |
| 06/27/1991 | DE4039590A1 Modified dis-azo pigment has improved nuance, stability, dispersibility |
| 06/26/1991 | EP0433810A2 Process for the manufacture of storage stable solutions of dye |
| 06/26/1991 | EP0433693A1 Water-insoluble monoazo dyes and mixture thereof |
| 06/26/1991 | CN1052494A Phthalocyanine fibre-reactive dyes |
| 06/25/1991 | US5026429 Metal oxide coated platelet-like organic pigments |
| 06/20/1991 | DE4039866A1 Bifunctional fibre-reactive dye cpds. |
| 06/19/1991 | EP0433229A1 Process for dyeing leather |
| 06/19/1991 | EP0433172A2 Electrophotographic photosensitive member |
| 06/19/1991 | CN1052345A Rope-dyeing dyes and dye compositions, dyeing methods using same, as well as dyed materials |
| 06/18/1991 | US5024698 Monoazo pigment compositions |
| 06/12/1991 | EP0431906A2 Cotton rope-dyeing methods |
| 06/11/1991 | US5023324 Lightfastness, water fastness |
| 06/11/1991 | US5023274 Fibre-reactive formazan dyes containing β-halogenethyl or vinylsulfonyl-alkanoylamino fiber-reactive groups |
| 06/05/1991 | EP0430880A2 Process for the preparation of concentrated 1:2 metal complex dye preparations |
| 06/05/1991 | EP0430879A2 Mixtures of dyes and their use |
| 06/05/1991 | EP0430878A2 Mixtures of dyes and their use |
| 06/05/1991 | EP0430877A2 Mixtures of dyes and their use |
| 06/05/1991 | EP0430875A2 Water-based coating materials containing specific modified organic pigments |
| 06/05/1991 | EP0430871A1 Aqueous dyestuff-preparations |
| 06/04/1991 | US5021090 Inks modified by primary amines also containing a diazo dye; increased strength, gloss transparency, coatings. |