C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 47/24 (2006.01) C09B 67/22 (2006.01) C09B 69/04 (2006.01) C09D 7/12 (2006.01)
Patent
CA 2184033
The present invention provides a composition comprising copper phthalocyanine containing 0-4 chlorine atoms having a crystal size in the range of from 0.01 to 0.2 µm, and from 10 to 15% by weight of an ionic complex formed from copper phthalocyanine sulphonic acid and a quaternary amine of the formula (I) ?(R1R2R3R4)X- (I) where R1 is a C1-C6 alkyl group; R2 is a C1-C18 alkyl group; R3 is the same as R2 or is a hydroxyethyl or ethoxylated ethyl group having up to 5 ethyleneoxy units: R4 is a hydroxyethyl or ethoxylated ethyl group having up to 5 ethyleneoxy units; and X is a halogen atom.
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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