- PIGMENT COMPOSITION, AND POLYMERIZED TONER
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A pigment composition for polymerized toner synthesized from a diazo component yielded by diazotizing a 2-methoxy-4-nitroaniline and/or 4-methoxy-2-nitroaniline, and a coupler component comprising 60 to 98.5% by mole of acetoacetoorthoanisidide, 0.5 to 20
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Page/Page column 8
(2009/07/03)
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- Production process and system for insoluble azo pigments
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An insoluble azo pigment is produced by ejecting a diazo solution and a grounding solution continuously into an ejector such that within the ejector, the diazo solution and grounding solution are mixed with each other and are subjected to a coupling reaction. A production system for the insoluble azo pigment includes the following units (1) to (4): (1) a first feed tank (2) for a first fluid selected from the diazo solution or grounding solution, a first flow path (a) for feeding the first fluid to nozzles of an ejector (1), and a pump (d) for feeding the first fluid through the first flow path; (2) the ejector (1) provided with the nozzles, a suction chamber, a diffuser, and a temperature control device (g); (3) a second feed tank (3) for a second fluid, a second flow path (b) for guiding the second fluid into the suction chamber, and a flow control device (e) for controlling a flow rate of the second fluid through the second flowpath (b); and (4) a heat treatment tank (5) for subjecting to heat treatment a suspension of the insoluble azo pigment formed by a reaction between the first fluid and the second fluid, and a third flow path (a′) for guiding the suspension from the diffuser to the heat treatment tank.
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Page/Page column 11-12
(2008/06/13)
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- AROMATIC-ALIPHATIC AZO DERIVATIVES PARTICULARLY AS MARKERS FOR PETROLEUM PRODUCTS, METHOD FOR SYNTHESIZING THEM, USE THEREOF AND DERIVED COMPOSITIONS
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Products having the general formula A, particularly useful as non-coloring markers in a process for tagging mineral oils, petroleum derivatives in general and solvents. A method is also described for synthesizing the products by resorting to a classical diazocoupling reaction between a derivative of an aromatic amine and a coupling agent, preferably a functionalized ester. The invention also relates to the use of these tagging and dyeing molecules and mixtures which comprise them. In particular, the mixtures comprise the markers according to the invention and the markers and/or dyes classically used in the petroleum sector.
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Page/Page column 17
(2008/06/13)
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- PREPARATION PROCESS OF AZO PIGMENT DISPERSION
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A process for preparing an azo pigment dispersion, comprising the step of causing a solution containing a diazonium compound to react with a solution containing a coupling agent to prepare an azo pigment dispersion in which an azo pigment is dispersed, wh
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Page/Page column 14
(2008/06/13)
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- Process for the preparation of pigment compositions
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Preparation of stabilized pigment compositions, comprising mixing a water-miscible quaternary ammonium compound of formula III wherein R1, R2, R3 and R4 independently of each other stand for C1-C22aklyl, C2-C22alkenyl, benzyl, pyridyl, quinolyl, isoquinolyl or polyoxyalkylenyl, and X? is an anion, a water-immiscible organic solvent and a pigment.
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