| Patents for C09B 48 - Quinacridones (562) |
|---|
| 03/27/2008 | US20080073625 a polyamic acid whose light transmittance decreases by 2% or less in the visible region and a coloring agent and a solvent; high contrast, color purity and improved transmittance for blue color; display |
| 03/13/2008 | US20080060554 Process for the Preparation of Organic Materials |
| 02/26/2008 | US7335771 6-{2,9-Dinitro-12-(5-carboxypentyl)-7,14-dioxo-7,14-dihydro-12H-quino[2,3-b]acridin-5-yl}hexanoic acid, diethyl ester to label and identify preferential biopolymer in solution |
| 02/19/2008 | CA2312167C Process for the continuous preparation of quinacridones |
| 01/02/2008 | CN100358949C Oxidation process for preparing quinacridone pigments |
| 12/25/2007 | US7311953 optical filters comprising polyamic acids, coloring agent and solvents, having high contrast, color purity and improved transmittance for blue colors |
| 12/20/2007 | US20070289500 Organic pigment fine-particle, and method of producing the same |
| 12/12/2007 | CN100354378C Hydrophilic coloring agent for recording image, aqueous coloring composition for recording image, method and system for recording image |
| 12/06/2007 | WO2007139724A1 2,5-di(methoxyanilino)terephthalic acid polymorphs and quinacridones realized therefrom |
| 11/27/2007 | US7300511 Lithographic and gravure printing inks |
| 11/27/2007 | CA2223334C Process for surface-treated organic pigments |
| 10/23/2007 | CA2287812C Process for conditioning organic pigments |
| 10/11/2007 | WO2007060254A3 Quinacridone derivatives as dispersion synergists |
| 09/27/2007 | US20070224345 Polyelectrolyte-encapsulated pigments |
| 09/25/2007 | CA2271400C Heterocyclic-substituted quinacridone pigments |
| 09/05/2007 | EP1565530B1 Preparation of beta quinacridone pigments |
| 08/14/2007 | CA2224619C Organic pigment composition |
| 08/08/2007 | CN101014667A Intermediate chemical substance in pigment crystal production stage, process for producing pigment crystal from the same, and crystalline pigment |
| 06/14/2007 | US20070131144 Water-based pigment preparations |
| 06/06/2007 | EP1792950A1 Intermediate chemical substance in pigment crystal production stage, process for producing pigment crystal from the same, and crystalline pigment |
| 05/31/2007 | US20070119345 Process for the preparation of organic materials |
| 05/03/2007 | US20070100024 Modified colorants and inkjet ink compositions comprising modified colorants |
| 05/01/2007 | US7211139 Process for preparing nanoscale quinacridone |
| 04/26/2007 | WO2006118978A3 Process for preparing nanoscale quinacridone |
| 04/11/2007 | EP1370614B1 The use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments |
| 04/11/2007 | CN1310043C Colored composition for color filter and display using color filters formed of the colored composition |
| 03/27/2007 | CA2244618C Mixed crystal pigments of the quinacridone series |
| 03/08/2007 | US20070051275 Method of colouring carrier materials |
| 02/27/2007 | CA2163400C Process for the preparation of organic pigments |
| 02/15/2007 | US20070034117 2,9-Dichloro-quinacridone as alpha-quinacridone crystal phase inhibitor |
| 02/07/2007 | CN1298788C Pigment compositions and process of shading |
| 01/23/2007 | US7166158 Quinacridone pigment compositions comprising unsymmetrically substituted components |
| 01/23/2007 | CA2246109C Microwave syntheses of quinacridones, 6,13-dihydroquinacridones, and 6,13-quinacridonequinones |
| 01/09/2007 | US7161007 Oxidation of dihydroquinacridone salt with peroxide in the presence of catalyst and anthraquinonedisulfonic acid as catalyst |
| 01/09/2007 | US7160380 Organic pigment fine-particle, and method of producing the same |
| 01/09/2007 | CA2219294C Incorporation of quinacridone additives during quinacridone preparation |
| 12/14/2006 | US20060281924 Fluorinated dyes or colorants and their uses |
| 12/12/2006 | US7147703 Pigment finishing by microwave heating |
| 11/29/2006 | EP1725619A1 Process for the preparation of organic pigments |
| 11/23/2006 | US20060260510 Organic pigment fine-particle, and method of producing the same |
| 11/14/2006 | US7135062 forms images good in print quality such as chroma, gloss, density, light fastness and abrasion fastness, and the inks have long-term storability and press stability |
| 11/14/2006 | CA2223372C Surface-treated organic pigments |
| 11/09/2006 | WO2006118978A2 Process for preparing nanoscale quinacridone |
| 11/09/2006 | US20060249052 Process for preparing nanoscale quinacridone |
| 10/25/2006 | EP1713864A1 Preparation of quinacridonequinones and substituted derivatives of same |
| 10/17/2006 | US7122081 Reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant, optionally a defoamer, optionally an additive, and greater than about 10 wt. % water, and isolating the organic pigment |
| 09/07/2006 | US20060196388 Continuous process for preparing pigment flush |
| 09/05/2006 | US7101428 stability of gamma-quinacridone pigment during milling by addition of 2,9-dichloroquinacridone |
| 08/24/2006 | US20060185558 Color filter, image display device and information communication equipment; pigment dispersing ability, transparency, fluidity and storage stability |
| 08/16/2006 | EP1689746A2 A process for aqueous milling of quinacridone pigments |
| 07/05/2006 | CN1262609C Fine pigment and composition for coloring |
| 06/07/2006 | EP1664202A2 Fluorinated dyes or colorants and their uses |
| 05/23/2006 | CA2199599C Incorporation of aromatic polycyclic compounds in quinacridone processes |
| 05/23/2006 | CA2199597C Incorporation of pigment derivatives in quinacridone processes |
| 05/09/2006 | US7041166 Manufacturing and conditioning of solid solution organic pigments |
| 05/02/2006 | CA2201414C A process for preparing quinacridone pigments |
| 04/19/2006 | EP1646691A1 Quinacridone pigment compositions comprising unsymmetrically substituted components |
| 04/11/2006 | CA2203619C Crystal growth modifiers for perylene pigments |
| 04/04/2006 | CA2146603C Process for the preparation of quinacridone pigments |
| 03/23/2006 | US20060060111 Aftertreating organic pigments by heating unground or ground organic crude pigment in water and/or organic solvent by means of microwave irradiation, under pressure if desired, so that the mass temperature of the mixture reaches 30 to 250 degrees C. |
| 03/16/2006 | WO2006028285A1 Intermediate chemical substance in pigment crystal production stage, process for producing pigment crystal from the same, and crystalline pigment |
| 03/16/2006 | WO2005017046A3 Fluorinated dyes or colorants and their uses |
| 03/09/2006 | US20060051811 Site-specific labelling of proteins using acridone and quinacridone lifetime dyes |
| 03/08/2006 | CN1244643C 2,9-dichloroquinacridone pigment |
| 03/07/2006 | US7008475 sulfopropyl ethers of alkoxylated naphthols, alkanols or alkylphenols as dispersants; high lightfastness, good photographic quality, outdoor use; readily dispersable, storage stable ink jet inks |
| 01/17/2006 | US6987186 Synthesis of small particle size quinacridone of beta crystal phase |
| 01/04/2006 | CN1717455A Preparation of beta quinacridone pigments |
| 12/06/2005 | US6972333 Preparation of quinacridonequinones and substituted derivatives of same |
| 11/23/2005 | EP1521809B1 Oxidation process for preparing quinacridone pigments |
| 11/16/2005 | EP1594925A2 Faux effects pigment compositions |
| 10/26/2005 | EP1587879A1 Synthesis of small particle size quinacridone of beta crystal phase |
| 10/12/2005 | EP1583803A1 Oxidation process for preparing highly dispersible quinacridone pigments |
| 09/15/2005 | WO2005085364A1 Process for the preparation of organic pigments |
| 09/14/2005 | CN1668708A Oxidation process for preparing quinacridone pigments |
| 08/25/2005 | US20050187313 Process for aqueous milling of quinacridone pigments |
| 08/25/2005 | US20050183635 stability of gamma-quinacridone pigment during milling by addition of 2,9-dichloroquinacridone |
| 08/24/2005 | EP1565530A1 Preparation of beta quinacridone pigments |
| 08/11/2005 | US20050176959 Oxidation of dihydroquinacridone salt with peroxide in the presence of catalyst and anthraquinonedisulfonic acid as catalyst |
| 08/04/2005 | WO2005071017A1 Preparation of quinacridonequinones and substituted derivatives of same |
| 08/04/2005 | WO2005049735A3 A process for aqueous milling of quinacridone pigments |
| 08/04/2005 | CA2553531A1 Preparation of quinacridonequinones and substituted derivatives of same |
| 07/21/2005 | US20050155162 Process for the coloration of aluminium |
| 07/14/2005 | US20050154207 Quinacridonequinones having increased purity are prepared by oxidizing quinacridones or substituted derivatives of same with a non-metal oxidant in a liquid medium, optionally, at elevated temperatures |
| 06/08/2005 | CN1625585A Manufacturing and conditioning of solid solution organic pigments |
| 06/02/2005 | WO2005049735A2 A process for aqueous milling of quinacridone pigments |
| 05/26/2005 | US20050109240 Organic pigment fine-particle, and method of producing the same |
| 04/27/2005 | EP1525479A1 Site-specific labelling of proteins using acridone and quinacridone lifetime dyes |
| 04/21/2005 | US20050081755 Manufacturing and conditioning of solid solution organic pigments |
| 04/13/2005 | EP1521809A1 Oxidation process for preparing quinacridone pigments |
| 03/23/2005 | EP1516896A1 Organic pigment fine-particle, and method of producing the same |
| 03/22/2005 | US6869472 2,9-dichloroquinacridone pigment |
| 03/16/2005 | CN1594443A Pigment compositions and process of shading |
| 03/15/2005 | US6867301 Quinacridone dyes |
| 03/09/2005 | CN1591052A Colored composition for color filter and display using color filters formed of the colored composition |
| 03/09/2005 | CN1192064C Pigment composition and process of mixing hue |
| 03/09/2005 | CN1192009C Soluble chromophore containing solubilizing group easy to be removed |
| 03/08/2005 | US6864371 Oxidation of 6,13-dihydroquinacridone in presence of a polyvinylpyrrolidone catalyst |
| 03/03/2005 | US20050048224 optical filters comprising polyamic acids, coloring agent and solvents, having high contrast, color purity and improved transmittance for blue colors |
| 02/24/2005 | WO2005017046A2 Fluorinated dyes or colorants and their uses |
| 02/24/2005 | US20050039274 Fluorinated dyes or colorants and their uses |