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US 7,244,298 B2Granted
Magenta metal chelate dyes and their use ink-jet printers
AssigneeFujifilm Imaging Colorants Limited
InventorsClive Edwin Foster, Clive Moscrop, Gavin Wright, Rachel Anne James
Life of this patent
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Abstract
A metal chelate compound of Formula (1) or a salt thereof: [A-N═N—B]M Formula (1) wherein: A is an optionally substituted pyridyl ring; and B is of the Formula (2): wherein: X and W are substituents other than H; M is a metal chelated to A-N═N—B; and n is 0 to 4, also claimed are compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and an ink jet printer cartridge containing the ink.
Claims17
A metal chelate compound of Formula (1) or a salt thereof:
- [A-N═N—B]M Formula (1)
- wherein:
- A is an optionally substituted pyridyl ring;
- and
- B is of the Formula (2):
- wherein:
- X and W are substituents other than H;
- M is a metal chelated to A-N═N—B;
- and
- n is 0 to 4.
7 more elements
An ink comprising:
- (a) a metal chelate compound of Formula (1) or a salt thereof:
- [A-N═N—B]M Formula(1)
- wherein:
- A is an optionally substituted pyridyl ring;
- and
- B is of the formula (2):
- wherein:
- X and W are substituents other than H;
- M is a metal chelated A-N═N—B;
- and
- n is 0 to 4;
- and
- (b) a liquid medium.
10 more elements
Dependencies are inferred from the claim text.