Zeneca Limited

Avecia Limited

Fujifilm Imaging Colorants, Inc.

Imperial Chemical Industries Limited

Mark Robert James

Peter Gregory

John Christopher Padget

David Alan Pears

Gordon A Thomson

Paul Wight

Peter W Austin

Barry Huston Meyrick

Alan Hopper

Brian D Bothwell

Andrew N Collins

Denise Cavanagh

Clive H Barlow

Nigel Hall

Philip John Double

Aidan Joseph Lavery

Janette Watkinson

David Cottrell

Mark Walker

A process for etching a metal or alloy surface which comprises applying an etch-resist ink by ink jet printing to selected areas of the metal or alloy, solidifying the etch-resist ink without the use of actinic light and/or particle beam radiation and then removing the exposed metal or alloy by a chemical etching process wherein the etch-resist ink comprises the components:

Ink jet printing process for etching metal and alloy surfaces

A process for making an electronic device comprising a dielectric substrate laminated with an electrically conductive metal or alloy which comprises applying a non-aqueous etch-resistant ink by ink jet printing to selected areas of the metal or alloy, exposing the etch-resistant ink to actinic radiation and/or particle beam radiation to effect polymerisation, removing exposed metal or alloy by a chemical etching process and then removing the polymerised etch-resistant ink by alkali wherein the etch-resistant ink is substantially solvent free and comprises the components:

Process and ink for making electronic devices

A process for making an electronic device which comprises applying a non-aqueous plate-resistant ink by ink jet printing to selected areas of a dielectric substrate, optionally laminated with an electrically conductive metal(s), exposing the plate resistant ink to actinic and/or particle beam radiation to effect polymerisation, adding one or more metal layers by electrolytic or electroless deposition, the upper layer of which is an etch-resistant metal(s), removing the polymerised plate-resistant ink with alkali and finally removing the electrically conductive metal(s) which are optionally directly laminated to the dielectric substrate and not protected by an upper layer of etch-resistant metal(s) by chemical etching wherein the plate-resistant ink is substantially solvent-free and comprises:

Plating process

A compound comprising a disazo chromaphore and an optionally substituted acyl group linked together through a &mdash;SO &mdash;NH&mdash; group, inks comprising these compounds, ink jet printer cartridges containing these inks and their use in ink jet printing.

Disazo dyes and inks containing them

A compound comprising a disazo chromophore and an optionally substituted heterocyclic group linked together through a &mdash;SO &mdash;NH&mdash; group, inks comprising these compounds, ink jet printer cartridges containing these inks and their use in ink jet printing.

A water-dissipatable polymer having colorant attached thereto through a covalent &mdash;O-link and an ink comprising the water-dissipatable polymer and a liquid medium.

Ink-jet ink compositions

The invention relates to polyurethanes, inks comprising polyurethanes and their use in ink jet printing where the polyurethane comprises a colored water-dissipatable polyurethane obtainable from the reaction of a polyisocyanate, a compound providing water-dispersing groups and a colorant having at least two functional groups.

Colored polyurethanes

Process for the preparation of 1,2-benzisothiazolin-3-ones

The invention relates to polyurethanes, inks comprising polyurethanes and their use in ink jet printing where the polyurethane comprises a colored water-dissipatable polyurethane obtainable by chain-terminating a polyurethane prepolymer with a colorant.

Ink additives

A dye of Formula (1): ##STR1## wherein: D is a group of Formula (2): ##STR2## or a group of Formula (3): ##STR3## or a group of Formula (4): ##STR4## The variables are defined in the disclosures. The dyes and dye mixtures produce blue to green shades on synthetic textile materials such as polyester which have good build up and good light- and wet-fastness.

Growing community of inventors

Manchester, United Kingdom

Mark Robert James