| Patents for C09B 31 - Disazo or polyazo dyes of the type a b c, a b c d, or the like, prepared by diazotising and coupling (1,445) |
|---|
| 10/07/2004 | US20040195552 useful as powders or pellets for incorporation into a variety of thermoplastic resins; diacidic anthraquinone compounds |
| 09/30/2004 | US20040187734 Inkjet recording ink set |
| 09/30/2004 | US20040187232 Disazo dyes and an azo dyes mixture; forming an image having good color hue and high colorfastness to light and ozone gas; black color; inks comprising a metal phthalocyanine dye |
| 09/14/2004 | US6790490 Dye type polarizing plate |
| 08/17/2004 | US6776930 Polymer bonded to dye |
| 08/12/2004 | WO2004050768A3 Benzimidazole-pyridone-based azo dyes |
| 08/12/2004 | US20040158050 Cinnamate derrivative for colors in inks and binding with aging resistance for colors |
| 07/29/2004 | WO2003066938A3 Process for the coloration of aluminium |
| 07/28/2004 | EP1320573A4 Black azo dyes |
| 07/15/2004 | US20040135117 Dichroic dye, composition thereof, and liquid crystal composition and liquid crystal display element containing the same |
| 07/14/2004 | EP1437388A1 Coloring composition and inkjet recording method |
| 07/14/2004 | EP1437387A1 Inkjet ink, inkjet recording method and color toner composition |
| 06/29/2004 | US6756488 Improved compound which presents high density and neutral black color having no other color tint, excellent water resistance and image storability (light resistance, dark heat storability and ozone resistance) |
| 06/17/2004 | WO2004050768A2 Benzimidazole-pyridone-based azo dyes |
| 06/17/2004 | US20040112251 Azo dyes containing a barbituric aid moiety, ink-jet printing inks and processes |
| 06/17/2004 | CA2505613A1 Benzimidazole-pyridone-based azo dyes |
| 06/08/2004 | US6746526 Having at least hydroxy-, amino- and sulphato- aryl substitution |
| 06/08/2004 | US6746525 Disazo dyes and inks containing them |
| 05/18/2004 | US6736888 Comprising heterocyclic group with sulfonamide linkage; ink jet printing; overhead projectors |
| 05/13/2004 | US20040089198 Disazo dyes, ink jet printing inks and processes |
| 05/12/2004 | EP1147152B1 Disazo dyes and inks containing them |
| 05/11/2004 | US6733540 Use of 2-(sulphonylamino)phenols as couplers in oxidation coloring |
| 04/29/2004 | US20040080596 Black ink for ink-jet recording |
| 04/15/2004 | US20040070654 Black ink for inkjet recording |
| 04/15/2004 | US20040069976 2-(4-(4-sulfophenyl- or 6,8-disulfo-2-naphthyl- azo)-2(or 5-)-methylphenyl azo)-1-hydroxy-3-sulfo-6-anilinonaphthalene; dye-based polarizing film |
| 04/14/2004 | EP1408091A1 Disazo compound, dye, ink and ink-jet recording method |
| 04/14/2004 | EP1228149B1 Disazo dyestuffs for ink jet printing |
| 04/14/2004 | CN1489620A Azodyes, preparing method thereof and use in dyeing or printing of hydrophobic fiber materials |
| 03/31/2004 | EP1403339A1 Black ink for inkjet recording |
| 03/31/2004 | EP1403338A1 Black ink for ink-jet recording |
| 03/31/2004 | EP1084201B1 Use of lithium salts of anionic dyes to enhance their light-fastness |
| 03/30/2004 | US6712893 Black inks with good storage stability; images with good optical density and colorfastness |
| 03/25/2004 | WO2004024827A1 Process for preparing azo compound |
| 03/25/2004 | US20040055097 Azo dyes, a process for their preparation and their use in the dyeing or printing of hydrophobic fibre materials |
| 03/02/2004 | US6699976 Covering region of from 500 to 580 nm and particularly excellent in initial polarization ability |
| 02/26/2004 | WO2004016699A1 Ink for inkjet recording, ink set for inkjet recording and inkjet recording method |
| 02/24/2004 | US6695899 Dyes of the invention may be used as the sole colorant in inks because of their attractive black shade |
| 02/12/2004 | WO2004013232A1 Trisazo compounds, water-base ink compositions, and colored articles |
| 01/22/2004 | US20040013375 Novel substituted-polyaryl chromophoric compounds |
| 01/14/2004 | CN1134512C Use of compositions containing bisazo compounds for detecting fissures |
| 12/17/2003 | EP1370618A1 Azo dyes containing a barbituric acid moiety, ink-jet printing inks and processes |
| 12/17/2003 | EP1370613A1 Disazo dyes, ink-jet printing inks and processes |
| 12/11/2003 | US20030226221 Ink jet recording using disazo dyes |
| 11/25/2003 | US6652637 Disazo dyes and inks containing them |
| 11/20/2003 | WO2003095563A1 Trisazo dyes for ink jet printing |
| 11/20/2003 | WO2003095562A1 Trisazo dyes for ink jet printing |
| 10/23/2003 | WO2003087238A1 Coloring composition and inkjet recording method |
| 10/22/2003 | EP1354005A1 Azo dyes, a process for their preparation and their use in the dyeing or printing of hydrophobic fibre materials |
| 10/16/2003 | US20030195342 Compound, dye, ink and ink-jet recording method |
| 10/02/2003 | US20030182733 Use of certain compounds, which are given in claim 1, or mixtures thereof for the coloring and tinting of keratin fibers, in particular of human hair, oxidative or permanent coloring agents or using a mixture of different developer |
| 09/25/2003 | WO2002033005A3 Novel substituted-polyaryl chromophoric compounds |
| 09/09/2003 | US6616712 Use of compositions containing bisazo compounds for detecting fissures |
| 08/14/2003 | WO2003066938A2 Process for the coloration of aluminium |
| 08/13/2003 | EP1305445A4 Dark quenchers for donor-acceptor energy transfer |
| 07/30/2003 | CN1116366C Pyridone-methide azo dyestuffs |
| 07/10/2003 | US20030127017 Counterion use for reduction of decap and for improvement of durability of inkjet images |
| 06/25/2003 | EP1320573A1 Black azo dyes |
| 06/18/2003 | CN1424360A Modified weak acid red pigment |
| 05/29/2003 | US20030098447 Polyazo compound or salt thereof and dye-based polarization film containing the same |
| 05/07/2003 | EP1308482A1 Counterion use for reduction of decap and for improvement of durability of images |
| 05/02/2003 | EP1305445A1 Dark quenchers for donor-acceptor energy transfer |
| 04/29/2003 | US6555604 Light stabilizing azo-pigments used in high density polyethylene |
| 04/15/2003 | US6548649 Compound, dye, ink and ink-jet recording method |
| 03/12/2003 | EP1289480A1 Use of organic substances |
| 12/11/2002 | CN1095862C Water soluble trisazo compound and aqueous ink composition |
| 11/21/2002 | US20020170126 Compound, dye, ink and ink-jet recording method |
| 09/26/2002 | WO2002074865A1 Water-soluble disazo compound, water-based black ink composition, and colored object |
| 09/25/2002 | EP0979847B1 Water-soluble trisazo compounds, aqueous ink composition and colored article |
| 09/19/2002 | WO2002072715A1 Azo dyes containing a barbituric acid moiety, ink-jet printing inks and processes |
| 09/19/2002 | WO2002072708A1 Disazo dyes, ink-jet printing inks and processes |
| 09/18/2002 | EP1240645A1 Method for digitally and optically storing data |
| 09/17/2002 | US6451989 Black azo dyes |
| 09/03/2002 | CA2071434C Preparation of acetalized azo dyes |
| 08/07/2002 | EP1229083A2 DIsazo compound, dye, ink and ink-jet recording method |
| 08/07/2002 | EP1228149A1 Disazo dyestuffs for ink jet printing |
| 08/07/2002 | EP1228148A1 Disazo dyestuffs for ink jet printing |
| 08/01/2002 | WO2002059216A1 Azo dyes, a process for their preparation and their use in the dyeing or printing of hydrophobic fibre materials |
| 08/01/2002 | US20020100125 Use of 2-(sulphonylamino) phenols as couplers in oxidation colouring |
| 07/24/2002 | EP1133532B1 Use of compositions containing bisazo compounds for detecting fissures |
| 07/24/2002 | CN1360682A Polarizer comprising dye |
| 07/17/2002 | EP0971987B1 Ink composition containing at least two azo dyes |
| 06/25/2002 | US6409810 Storage stability; high optical density; waterproof and light resistance; pens; printed images |
| 06/04/2002 | US6399752 Photostability; heat resistance; waterproofing |
| 05/28/2002 | US6395885 Use of lithium salts of anionic dyes to enhance their light-fastness |
| 05/15/2002 | EP1205176A1 Use of 2-sulphonylaminophenols as coupling agents in oxidation dyeing |
| 05/14/2002 | CA2363323A1 Use of 2-sulphonylamino-phenols as coupling agents in oxidation coloration |
| 05/08/2002 | EP1203969A1 Polarizer comprising dye |
| 04/25/2002 | WO2002033005A2 Novel substituted-polyaryl chromophoric compounds |
| 04/25/2002 | US20020049309 Black azo dyes |
| 02/28/2002 | WO2002016502A1 Black azo dyes |
| 02/27/2002 | CN1337981A Disazo dyes and inks containing them |
| 12/26/2001 | CN1328593A Use of compositions containing bisazo compounds for detecting fissures |
| 12/19/2001 | CN1327014A 1,1'-di-2-naphthol serial polyazo dyes |
| 12/12/2001 | EP0888406B1 Azo compounds |
| 11/29/2001 | WO2001089461A1 Use of organic substances |
| 11/15/2001 | WO2001086001A1 Dark quenchers for donor-acceptor energy transfer |
| 11/14/2001 | EP1153085A2 Disazo dyes and inks containing them |
| 10/30/2001 | US6309807 Containing binder |
| 10/24/2001 | EP1147153A1 Disazo dyes and inks containing them |
| 10/24/2001 | EP1147152A1 Disazo dyes and inks containing them |