Zeneca Limited

Imperial Chemical Industries Limited

Avecia Limited

Ronald W Kenyon

Peter Gregory

Prahalad Manibhai Mistry

Paul Wight

Derek Thorp

David F Newton

David Greenwood

Suraj L Hindagolla

Nigel Hughes

Colin William Greenhalgh

Andrew John Logan

Roy Bradbury

John Anthony Taylor

David J Milner

Denis Robert Ridyard

Mark Kenworthy

Aidan Joseph Lavery

David Brierley

John E Presgrave

Christine Millard

Stephen John Bentley

Monoazo dyestuffs, a composition and an ink for ink jet printing comprising them

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

Bleed reduction agents for ink printing inks

Phthalocyanine compounds

Disazo compounds containing a piperazinylethysulfonyl group

Azo compound

Stabilised dye composition

A bisazo compound of the Formula (1) and salts thereof: ##STR1## wherein Ar.sup.1, Ar.sup.2, each J, each X, L, R.sup.1 and R.sup.2 are as defined in the description, provided that L comprises the residue ##STR2## and/or L.sup.1 is

B15-A20 dyes and inks based thereon

A monoazo compound of the Formula (1) and salts thereof: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3, independently, represents H, halogen, alkyl, alkoxy or acylamino, or R.sup.1 and R.sup.2 together form an optionally substituted benzo ring; L.sup.1 represents --OR.sup.4 , --SR.sub.4 or --NR.sup.5 R.sup.6 wherein each of R.sup.4, R.sup.5 and R.sup.6, independently, represents H or optionally substituted hydrocarbyl or R.sup.5 and R.sup.6 together with the attached nitrogen atom form a 5- or 6-membered ring; and L.sup.2 represents a substituted amino group selected from; ##STR2## in which either R.sup.7 is H and R.sup.8 and R.sup.9 together represent --CH.sub.2 CH.sub.2 --or R.sup.9 is H and R.sup.7 and R.sup.8 together represent --CH.sub.2 --CH.sub.2 --, ##STR3## in which X represents an optionally substituted alkylene group containing 2 or more carbon atoms and each of R.sup.10 and R.sup.11, independently, represents H or optionally substituted hydrocarbyl, the compounds of Formula (1) being free from fiber-reactive groups and any carboxyl substituents present in the compounds being attached in the form of one or more residue of the following formulae: ##STR4## Also claimed are ink compositions comprising the above compound; a process for printing substrates with the ink compositions using an ink-jet printer; paper, project slides and textile materials printed with the ink compositions; and a process for coloration of textile materials with the ink compositions.

Monoazo compounds

A monoazo compound of the Formula (1) and salts thereof: ##STR1## wherein each of R.sup.1 and R.sup.2, independently, represents H, halogen, alkyl, alkoxy or acylamino; each of R.sup.3, R.sup.4 and R.sup.5, independently, represents H or optionally substituted hydrocarbyl other than groups comprising the residue --A'NR.sup.7 R.sup.8 wherein A represents an optionally substituted alkylene group containing 2 or more carbon atoms and each of R.sup.7 and R.sup.8, independently, represents H or optionally substituted hydrocarbyl or R.sup.7 and R.sup.8 together with the attached nitrogen atom form a 5- or 6-membered ring and R.sup.6 represents an optionally substituted hydrocarbyl group not comprising the residue --A--NR.sup.7 R.sup.8 wherein A, R.sup.7 and R.sup.8 are as defined above; or R.sup.3 and R.sup.4 together with the attached nitrogen atom and/or R.sup.5 and R.sup.6 together with the attached nitrogen atom form a 5- or 6-membered ring other than a piperazine ring, the compounds of Formula (1) being free from fibre-reactive groups and any carboxyl substituents present in the compounds being attached in the form of one or more residue of the following formulae: ##STR2## also claimed are ink compositions comprising the above compound; a process for printing substrates with the ink compositions using an ink-jet printer; paper, project slides and textile materials printed with the ink compositions; and a process for coloration of textile materials with the ink compositions.

A bisazo compound of the Formula (1) and salts thereof: ##STR1## wherein the variables are as defined in the specification, the compounds of Formula (1) being free from fibre-reactive groups and any carboxyl substituents present in the compounds being attached in the form of one or more residue of the following formulae: ##STR2## Also claimed are ink compositions comprising the above compound; a precess for printing substrates with the ink compositions using an ink-jet printer; paper, project slides and textile materials printed with the ink compositions; and a process for coloration of textile materials with the ink compositions.

Chemical compounds

Disazo Compound

Process for preparing polycyclic dyes

Growing community of inventors

Manchester, United Kingdom

Ronald W Kenyon