- Colorant compounds
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Compounds of the formula wherein M is either (1) a metal ion having a positive charge of +y wherein y is an integer which is at least 2, said metal ion being capable of forming a compound with at least two chromogen moieties, or (2) a metal-containing moiety capable of forming a compound with at least two chromogen moieties, z is an integer representing the number of chromogen moieties associated with the metal and is at least 2, R1, R2, R3, R4, R5, R6, R7, a, b, c, d, Y, and z are as defined herein, Q? is a COO? group or a SO3— group, A is an organic anion, and CA is either a hydrogen atom or a cation associated with all but one of the Q? groups.
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Page/Page column 62-63
(2008/06/13)
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- Rhodamine dye derivatives and their use for phase change inks
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Compounds of the formula wherein M is either (1) a metal ion having a positive charge of +y wherein y is an integer which is at least 2, said metal ion being capable of forming a compound with at least two chromogen moieties, or (2) a metal-containing moiety capable of forming a compound with at least two chromogen moieties, z is an integer representing the number of chromogen moieties associated with the metal and is at least 2, and R1,R2,R3,R4,R5,R6,R7,a,b,c,d,Y,Q-,A, and CA are as defined herein.
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- Methods for making colorant compounds
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Disclosed is a process for preparing a colorant of the formula 1wherein Y is a hydrogen atom or a bromine atom, n is an integer of 0, 1, 2, 3, or 4, R1 is an alkylene group or an arylalkylene group, R2 is an alkyl group, an aryl grou
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- Triphenylmethane colorant compounds
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Compounds of the formulae and wherein R1, R2, R3, R4, R5, R6, R7, a, b, c, d, Y, Q, Q-, A, and CA are as defined herein.
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