| Patents for C09B 48 - Quinacridones (562) |
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| 02/17/2005 | WO2005014728A1 Quinacridone pigment compositions comprising unsymmetrically substituted components |
| 02/17/2005 | CA2532170A1 Quinacridone pigment compositions comprising unsymmetrically substituted components |
| 01/20/2005 | US20050011403 Quinacridone pigment compositions comprising unsymmetrically substituted components |
| 01/12/2005 | EP1305371B1 Dispersant compositions improving the heat stability of transparent pigments |
| 01/05/2005 | CN1183131C Process for aqueous preparation of small size linear quinacridone |
| 12/28/2004 | US6835242 Thermally treating a liquid prepigment suspension in a microreactor |
| 12/15/2004 | CN1554709A Paratonere 122 producing process |
| 12/02/2004 | WO2004074382A3 Faux effects pigment compositions |
| 11/18/2004 | US20040229057 oxidizing dihydroquinacridone with an additive of an isoindole quinacridone residue |
| 11/04/2004 | US20040220322 Faux effects pigment compositions |
| 10/27/2004 | EP1470197A1 Manufacturing and conditioning of solid solution organic pigments |
| 09/02/2004 | WO2004074382A2 Faux effects pigment compositions |
| 09/02/2004 | US20040171014 Quinacridone derivatives as labelling reagents for flurescence detection of bilogical materials |
| 08/25/2004 | EP1353920B1 Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size |
| 08/18/2004 | CN1521218A Process for preparation of quinacridone series pigments |
| 08/12/2004 | WO2004067642A1 Synthesis of small particle size quinacridone of beta crystal phase |
| 08/11/2004 | EP1355991B1 Hiding 2, 9-dichloroquinacridone pigment |
| 07/29/2004 | WO2004063284A1 Oxidation process for preparing highly dispersible quinacridone pigments |
| 07/29/2004 | WO2003066938A3 Process for the coloration of aluminium |
| 07/21/2004 | CN1158357C Crimson-coloured pigment composition and utilization thereof |
| 07/15/2004 | US20040138458 Oxidation process for highly dispersible quinacridone pigments |
| 07/15/2004 | US20040138457 Oxidation of 6,13-dihydroquinacridone in presence of a polyvinylpyrrolidone catalyst |
| 07/15/2004 | US20040138436 Pigments for coloring ink jets on porous material for waterproofing and light fastness, with anthraquinone dyes. Process of coloring a porous material such as wood |
| 06/10/2004 | WO2004048479A1 Preparation of beta quinacridone pigments |
| 06/10/2004 | CA2505763A1 Preparation of beta quinacridone pigments |
| 06/02/2004 | CN1501964A The use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments |
| 04/27/2004 | US6726762 Aggregate of primary particles wherein number of particles of not greater than 0.1 mu m in particle size is at least 95% of entire number of particles and number of particles of greater than 0.1 mu m in particle size is at most 5%; image recording |
| 04/14/2004 | CN1489622A 2,9-dichloroquinacridone pigment |
| 04/08/2004 | US20040065231 Red color automobile paints |
| 04/07/2004 | CN1144845C Contineuous preparing method for quinacridineone |
| 03/24/2004 | EP1399742A2 Quinacridone labelling reagents for fluorescence detection of biological materials |
| 03/04/2004 | US20040040682 Pigment compositions and process of shading |
| 02/05/2004 | WO2004011946A1 Site-specific labelling of proteins using acridone and quinacridone lifetime dyes |
| 02/05/2004 | US20040023409 Reagents and methods that afford direct attachment of the acridine dye reporter to either the N-terminus or C-terminus of a synthetic or recombinant peptide or protein and their derivatives in a site-specific manner |
| 02/05/2004 | CA2493314A1 Site-specific labelling of proteins using acridone and quinacridone lifetime dyes |
| 01/28/2004 | EP1383837A1 Water-soluble salt of sulfonamides as colorants for the pigmenting of porous materials and for use in inkjet printing |
| 01/22/2004 | WO2004007623A1 Oxidation process for preparing quinacridone pigments |
| 01/22/2004 | CA2489989A1 Oxidation process for preparing quinacridone pigments |
| 12/17/2003 | EP1370614A1 The use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments |
| 12/17/2003 | CN1131284C Gamma-quinacridinelone pigment |
| 10/29/2003 | EP1355991A2 Hiding 2, 9-dichloroquinacridone pigment |
| 10/22/2003 | EP1353920A1 Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size |
| 10/08/2003 | CN1123606C Application of quinacridineone mixed crystal piement in color mixing agent and ink |
| 09/30/2003 | US6626990 Using aromatic- or heteraromatic-compounds having at least one hydroxyl or keto group bonded to the ring, with the oxidation of corresponding dihydroquinacridone salts |
| 09/16/2003 | US6620235 Suitable for direct food contact packaging |
| 09/04/2003 | US20030164118 Conditioning of organic pigments |
| 08/14/2003 | WO2003066938A2 Process for the coloration of aluminium |
| 08/07/2003 | WO2003064541A1 Manufacturing and conditioning of solid solution organic pigments |
| 08/07/2003 | CA2467785A1 Manufacturing and conditioning of solid solution organic pigments |
| 05/13/2003 | US6562121 Thermally treating a liquid prepigment suspension in a microreactor |
| 05/08/2003 | US20030084820 Finely divided pigments and coloring compositions |
| 05/02/2003 | EP1305371A1 Dispersant compositions improving the heat stability of transparent pigments |
| 05/01/2003 | WO2002099432A3 Quinacridone labelling reagents for fluorescence detection of biological materials |
| 04/09/2003 | CN1105154C Process for preparation of quinacridone solid solutions |
| 03/12/2003 | EP1165696B1 Pigment compositions and process of shading |
| 02/05/2003 | CN1394917A Fine pigment and composition for colouring |
| 02/04/2003 | CA2076493C Modified gamma-quinacridone pigment |
| 01/14/2003 | CA2055019C Pyrazole-containing pigment derivatives |
| 01/02/2003 | EP1270680A2 Finely divided pigments and coloring compositions |
| 12/17/2002 | US6494949 Process for the preparation of beta-phase quinacridone |
| 12/17/2002 | US6494948 Heating 2,5-dianilinoterephthalic acid or 2,5-dianilino-6,13-dihydroterephthalic acid derivatives with polyphosphoric acid |
| 12/17/2002 | US6494947 Crimson-colored pigment mixtures comprising quinacridone and 1,4-diketo-2,5-dihydro-3,6-diarylpyrrolo(3,4c)pyrrole pigments in crystal phase with tinctoral strength |
| 12/12/2002 | WO2002099432A2 Quinacridone labelling reagents for fluorescence detection of biological materials |
| 11/26/2002 | US6486332 Fluorescent pigments |
| 11/26/2002 | US6485558 Process for the preparation of pigment granules |
| 11/19/2002 | US6482817 Hybrid pigments |
| 10/31/2002 | WO2002085988A1 Water-soluble salt of sulfonamides as colorants for the pigmenting of porous materials and for use in inkjet printing |
| 10/31/2002 | US20020161232 Use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments |
| 10/29/2002 | US6471765 Mannich-type substiuted dihydroquinacridone and a fine-sizezed sulfonated diketopyrrolopyrrole pigment |
| 10/15/2002 | US6465652 Quinacridone pigment |
| 10/10/2002 | WO2002053651A3 Process for the preparation of beta-phase quinacridone |
| 10/03/2002 | WO2002077104A1 The use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments |
| 10/03/2002 | WO2002064681A3 2, 9-dichloroquinacridone pigment |
| 10/03/2002 | CA2442001A1 The use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments |
| 10/02/2002 | EP1163294B1 Crimson-colored pigment composition and the utilization thereof |
| 08/28/2002 | EP0970149B1 Water-soluble quinacridones |
| 08/27/2002 | US6441174 Process for preparing bis(hydroxymethyl)perylenetetracarboximide |
| 08/22/2002 | WO2002064681A2 2, 9-dichloroquinacridone pigment |
| 08/22/2002 | CA2434568A1 2, 9-dichloroquinacridone pigment |
| 08/20/2002 | US6436182 Aqueous or organic solvent readily dispersible filtercakes; high pressure filter pressing without addition of filtration aides such as nonionic surfactants |
| 07/24/2002 | CN1088079C Mixed crystal pigments of quinacridone series |
| 07/11/2002 | WO2002053651A2 Process for the preparation of beta-phase quinacridone |
| 07/11/2002 | US20020088377 Heating 2,5-dianilino-terephthalic acid with polyphosphoric acid in the presence of 2,5-dianisidino-terephthalic acid, diluting product, treating with alkanol |
| 06/27/2002 | WO2002050074A1 Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size |
| 06/27/2002 | US20020078860 Preparation of quinacridone pigment compositions |
| 06/27/2002 | CA2433020A1 Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size |
| 06/20/2002 | US20020073896 Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size |
| 06/19/2002 | CN1354772A Crimson-coloured pigment composition and utilization thereof |
| 06/18/2002 | US6406533 6,13-dihydroqinacridone derivative is dissolved in concentrated sulfuric acid, the intermediate selected from a aromatic, cyclo-hetero aliphatic group or heteroaromatic group and para-formaldehyde is added, heating, precipitating |
| 06/11/2002 | US6402829 Heating aqueous slurry |
| 05/02/2002 | US20020052500 Reacting perylene-3,4,9,10-tetracarboximide or derivatives with formaldehyde to form bis(hydroxymethyl)perylene-3,4,9,10-tetracarboximide, which further reacts with a precursor of organic redicals |
| 04/17/2002 | CN1345357A Pigment composition and process of shading |
| 03/19/2002 | US6359122 Quinacridone, indigo, dioxazine or azo dyes |
| 03/06/2002 | CN1080292C Process for preparing quinacridone pigments |
| 02/19/2002 | US6348595 Perylene-3,4,9,10-tetracarboximide is hydroxymethylated by reaction with formaldehyde to form bis(hydroxymethyl) perylene-3,4,9,10-tetracarboximide; one pot process |
| 02/14/2002 | US20020016999 Dispersant compositions improving the heat stability of transparent pigments |
| 02/07/2002 | WO2002010288A1 Dispersant compositions improving the heat stability of transparent pigments |
| 02/07/2002 | US20020014179 Thermally treating a liquid prepigment suspension in a microreactor |
| 01/30/2002 | CN1078602C Preparation technology of dihalo substituted quinacridone organic-pigment |
| 01/10/2002 | DE10031558A1 Verfahren zur Konditionierung von organischen Pigmenten A process for conditioning organic pigments |