Imperial Chemical Industries Limited

Brian Parton

Nigel Hall

Denis Robert Ridyard

Andrew H Renfrew

John R Lawson

Kenneth Anderton

John L Leng

Robert D McClelland

Donald M Gunn

Malcolm G Shaw

A colored polymer containing repeat units derived from at least one azo dye which is free from water-solubilizing groups and contains at least one polymerizable olefinically unsaturated group and has the formula:

Colored polymers from azo dye monomers containing olefinic groups

A method of printing in which a solid ink composition is melted and ejected from a small orifice in the form of small drops directed towards a substrate on which an image is to be formed, characterized in that the solid ink composition comprises either a solution or a dispersion of a dye or a finely divided pigment in a halogenated hydrocarbon having a melting point of at least 50.degree. C. ('Ink A'), or a colored condensation polymer obtained by reacting a polymerizable lactone or a hydroxyalkanoic acid with a dye containing at least one active hydrogen atom ('Ink B').

Ink-jet printing

Colored condensation polymers useful as replacements for waxes in a thermal wax transfer process, said polymers being obtained by reacting a polymerizable lactone or a hydroxyalkanoic acid with a dye containing at least one active hydrogen atom.

Condensation polymers

A method for the coloration of textile materials which comprises applying thereto by a printing or continuous dyeing technique a colored polymer containing repeat units derived from at least one organic dye containing two or more polymerizable olefinically unsaturated groups.

Coloration process for applying a colored polymer containing units

A dyestuff of formula: ##STR1## wherein: the groups X.sub.1 and X.sub.2 are independently hydrogen, halogen, alkyl, aryl, alkoxy, cyano, optionally substituted amino or carboxylic acid ester groups; (R).sub.n represents n substituents R each of which is independently halogen, lower alkyl, lower alkoxy or --COOH and n is 0 or 1; R.sub.1 is hydrogen, or optionally substituted lower alkyl; Y is an optionally substituted aliphatic or optionally substituted araliphatic group; R.sub.2 is hydrogen, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl; R.sub.3 is hydrogen or an optionally substituted alkyl or aralkyl group; A.sup.- is an anion; a is 0 or 1; and Z is hydrogen, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl. The dyes are useful for the coloration of materials such as textiles, leather, inks and lacquers.

Cationic triphendioxazine dyes, methods for their manufacture and their

Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula (I) ##STR1## wherein R is a hydrogen atom, halogen atom, cyano, nitro, hydroxy or amino group or an organic radical, R.sup.1 is a hydrogen atom, an optionally substituted hydrocarbon or heterocyclic radical or an amino group which may be substituted, Y is a group --COR.sup.2 or ##STR2## wherein R.sup.2 is an alkyl group having two or more carbon atoms, R.sup.3 is an alkyl group of more than three carbon atoms or an aralkyl group and R.sup.4 is hydrogen or an optionally substituted alkyl or aryl group, K.sup.+ is a cationic group, X.sup.- is an anion and the ring A may carry further substituents or have a benz ring fused thereon. Process for manufacture of the dyestuffs and their use for the coloration of synthetic polymers, in particular polyacrylonitrile and copolymers thereof.

Water soluble cationic azo dyestuffs

Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula (I) ##STR1## wherein R is a hydrogen atom, halogen atom, cyano, nitro, hydroxy or amino group or an organic radical, R.sup.1 is a hydrogen atom, an optionally substituted hydrocarbon or heterocyclic radical or an amino group which may be substituted, Y is a group --OCOR.sup.2, --OSO.sub.2 R.sup.2 or --NHSO.sub.2 R.sup.2 wherein R.sup.2 is optionally substituted alkyl or aryl, K.sym. is a cationic group, X.crclbar. is an anion and the ring A may carry further substituents or have a benz ring fused thereon. Manufacture of such dyestuffs and use in the dyeing of synthetic polymeric materials.

Arylazo-hydroxy pyridone dyes containing a pyridinium group

Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula I: ##STR1## wherein A.sym. is a positively-charged aromatic or heterocyclic group, X.crclbar. is an anion; R is hydrogen or an optionally-substituted alkyl, aryl, aralkyl or cycloalkyl group, R.sup.1 is hydrogen, or an optionally-substituted alkyl or aralkyl group and the quinoline ring may be further substituted, and processes for the manufacture of such dyestuffs which are useful for the coloration of synthetic polymeric materials such as acrylonitrile polymers and copolymers.

Quaternized azo dyestuffs

Dyestuffs of the formula ##STR1## WHEREIN (R).sub.n represents n substituents R each of which may be independently halogen, lower alkyl, lower alkoxy or COOH

Growing community of inventors

Bury, United Kingdom

Brian Parton