Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2008-01-01
2008-01-01
Shah, Manish S. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C106S031130, C106S031490, C106S031780
Reexamination Certificate
active
10507594
ABSTRACT:
A process for preparing a mixture of copper phthalocyanine dyes of Formula (1): CuPc(SO3M)x(SO2NH2)y, wherein: CuPc is copper phthalocyanine; M is a cation; x and y each independently have a value of from 0.5 to 3.5; and (x+y)=2 to 5; which process includes: chlorosulphonating a copper phthalocyanine compound using a chlorosulphonating agent; and condensing the product of step (i) with ammonia to give a mixture of copper phthalocyanine dyes of Formula (1); optionally exchanging the cation M in the mixture of copper phthalocyanine dyes of Formula (1) resulting from step (ii) for an alternative cation M; wherein the chlorosulphonating agent includes a mixture of chlorosulphonic acid and a chlorinating agent selected from phosphorous oxychloride and phosphorous trichloride. Also the dyes obtainable from this process; compositions and inks including these dyes; materials printed with these dyes, compositions or inks; ink-jet printer cartridges containing inks made from the dyes; and ink-jet printers including these cartridges.
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Johnson Jill Louise
Patel Prakash
Robertson Colin Dick
Fujifilm Imaging Colorants Limited
Martin Laura E.
Shah Manish S.
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