| 摘要 |
Compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula (2): R<SUP>1</SUP> is optionally substituted alkyl other than methyl: R<SUP>2</SUP> is H, optionally substituted alkyl or optionally substituted aryl; R<SUP>3</SUP> is H, optionally substituted alkyl or optionally substituted aryl; R<SUP>4</SUP> is a group comprising a heterocycle and an ionisable group; L is a direct bond or a divalent linking group; x is 0.1 to 3.8; y is 0.1 to 3.8; and z is 0.1 to 3.8. Also compositions, inks, printed material and in-jet processes and cartridges. |
