Ink jet inks containing colored silica particles

Details Ink jet inks containing colored silica particles Ink jet inks containing colored silica particles

1988-08-17

1989-10-31

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

10628711, 10628714, 106490, C09D 1102

Patent

active

048774510

ABSTRACT:
An ink jet ink composition which comprises water, a solvent, and a plurality of colored particles comprising hydrophilic porous silica particles, to the surfaces of which dyes are covalently bonded through silane coupling agents. The particles are prepared by a process which copmrises reacting hydrophilic porous silica particles with a silane coupling agent in the absence of water to form particles having covalently attached thereto coupling agents, followed by reacting a dye with the coupling agent attached to the silica particles.

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patent: 4705567 (1987-11-01), Hair et al.
Journal of Chromatography, 299(1984), pp. 175 to 183, Ledger et al., "Preparation and Analysis of Reactive Blue 2 Bonded to Silica Via Variable Spacer Groups".

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