Phthalocyanine ink-jet dyes
AssigneeAvecia Limited
InventorKathryn Carr
Life of this patent
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Abstract
Phthalocyanine compounds of Formula (1) have utility as colorants in inks for ink-jet printing, where Formula (1) represents: which includes all IJP-effective forms of such compounds; and in which: M represents a metal or H; A represents C1 4alkylene; Pc represents a phthalocyanine nucleus of Formula (2): D represents NR4R5 or SC1-4alkyleneSO3H; R1, R2 and R3each independently represents H or C1-4-alkyl; R4 represents H,; or C1-4-alkyl optionally substituted by hydroxy; R5 represents C1-4alkyl optionally substituted by hydroxy and/or morpholino; or R4 and R5 together with the N atom to which they are attached form a morpholino ring; and x+y+z represents an average of from 3 to 4.
Claims10
A compound of Formula (1):
- which includes all IJP-effective forms of such compounds;
- and in which:
- M represents a metal or H;
- A represents C1-4alkylene;
- Pc represents a phthalocyanine nucleus of Formula (2):
- D represents SC1-4alkyleneSO3H;
- R1, R2 and R3each independently represents H or C1-4-alkyl;
- and
- x+y+z represents an average of from 3 to 4;
- provided that z and y are not zero.
Dependencies are inferred from the claim text.