Fujifilm Imaging Colorants, Inc.

Avecia Limited

Fujifilm Corporation

Zeneca Limited

Gavin Wright

Prakash Patel

Andrew Paul Shawcross

Kevin Johnson

Mairi Elizabeth Raggatt

Clive Edwin Foster

Peter Gregory

Roy Bradbury

Mark Holbrook

Barry Huston Meyrick

Rachel Anne James

Clive Moscrop

A process for the preparation of a dispersion, comprising: dispersing a composition comprising a particulate solid, a liquid medium and a dispersant; wherein the dispersant is obtained by a process comprising at least the steps a) and b): a) co-polymerising a monomer composition comprising at least the components i) and ii) so as to form a phospho-ester functional polymer: i) a monomer having at least one phospho-ester group and two groups independently selected from hydroxyl, amino, thiol and hydrazo groups, ii) a diisocyanate; and b) hydrolysing at least some of the phospho-ester groups in the phospho-ester functional polymer so as to result in a dispersant having phosphorus containing anionic groups.

Dispersions, process for preparing dispersions, inks and uses

A process for preparing a polymer comprising reacting at least the components i), ii) and optionally iii) to form a pre-polymer: i) a compound of the Formula (1); wherein: Tand Tare each independently HO&#x2014;, HS&#x2014; or HNR&#x2014;; Qand Qindependently are &#x2014;NR&#x2014;; Aand Aindependently are an optionally substituted divalent organic linking group; Z is a halogen; Rwhen present is H or an optionally substituted alkyl, aryl or heterocyclyl group; Ris H or an optionally substituted alkyl, aryl or heterocyclyl group; ii) a diisocyanate; iii) optionally an isocyanate reactive compound; and then reacting the pre-polymer with at least component iv): iv) one or more compounds selected from an organic amine, alcohol or thiol provided that at least one of the organic compounds in component iv) has at least one ionic group. 

Process for preparing polymers, polymers, dispersions, inks and uses

A process for preparing a polymer comprising reacting at least the components i) to iii) in any order: i) a compound of the Formula (1): Formula (1) wherein: Tand Tindependently are HO&#x2014;, HS&#x2014; or RHN&#x2014;; Qand Qindependently are &#x2014;NR&#x2014;; Aand Aindependently are an optionally substituted divalent organic linking group; Rwhen present is H or an optionally substituted alkyl, aryl or heterocyclyl group; Ris H or an optionally substituted alkyl, aryl or heterocyclyl group; Z is an HO&#x2014; group or a group of the Formula (2) or (3); Formula (2) wherein: L is &#x2014;HN&#x2014;, &#x2014;O&#x2014; or &#x2014;S&#x2014;; X is an optionally substituted organic group; Formula (3) wherein: each X independently is an optionally substituted organic group; in both Formulae (2) and (3) the asterisk (*) signifies the point of attachment to the triazine ring: ii) a diisocyanate; iii) an isocyanate reactive compound having at least one ionic group. 

A process for printing an image on a substrate comprising applying to the substrate an ink comprising a medium and compound of Formula (1) or a salt thereof wherein the compound of Formula (1) or a salt thereof is a triazine coupled azo containing colorant. The process and colorant are especially useful for ink jet printing.

Compound, ink, process and use

A compound of Formula (1) and salts thereof: wherein:

Magenta dyes and inks for use in ink-jet printing

A compound of Formula (1) or a salt thereof useful as colorants for use in ink jet printing inks: wherein: 

Azo compounds

A process for printing an image on a substrate comprising applying to the substrate by means of an ink jet printer an ink comprising a compound of Formula (1) or salt thereof:  Also claimed are compounds, inks, printed substrates and the use of compounds in preparing ink jet printing inks. The compounds provide inks which when printed exhibit good light fastness and ozone fastness.

Disazodyes for ink-jet printing

A metal chelate compound of Formula (1) or a salt thereof:[A-N&#x2550;N&#x2014;B]M&#x2003;&#x2003;Formula (1)wherein: wherein:

Magenta metal chelate dyes and their use ink-jet printers

A metal chelate compound of Formula: (1) or a salt thereof: [A&#x2014;N&#x2550;N&#x2014;B] M (1) wherein: A is a 5- or 6-membered heterocyclic ring other than a triazole ring, optionally carrying one or more substituents; B is of the Formula (2) or (2). Formula (2) (2) wherein: X, Y and W are substituents other than H; M is a metal chelated to A&#x2014;N&#x2550;N&#x2014;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 inkjet printer cartridge containing the ink 

Magenta metal chelate dyes and their use in ink-jet printers

A metal chelate of Formula (1) or salt thereof. Formula (1) wherein: Rand Rare each independently H or an organic group; M is a metal; p is 1 to 4; Y is an optionally substituted heterocyclic ring with a nitrogen ortho to the azo bridge; G is a substituent; and n is 0 to 5. Also inkjet inks, cartridges and processes 

A metal chelate compound of the Formula (1) and salts thereof:wherein:

Metal chelate compounds and inks

A process for printing an image on a substrate comprising applying thereto by means of an ink jet printer an ink containing a metal chelate compound of the Formula (1) and salts thereof:wherein:

Processes, compositions and compounds

Phthalocyanine compounds used in inks for ink jet printing

Phthalocyanine compounds used in inks for ink-jet printing

An ink comprising water, a water-dissipatable polymer and one or more dyes having a benzene ring carrying a hydroxy group at each of the 1-, 3- and 5-positions and an azo group at each of the 2-, 4- and 6-positions or a tautomer thereof. Also claimed are certain dyes, compositions printer cartridges and ink jet printers.

Growing community of inventors

Manchester, United Kingdom

Gavin Wright