Ciba-Geigy Corporation

Max Jost

Arnold Wick

Abul Iqbal

Alain C Rochat

Philippe Bugnon

Edward E Jaffe

Kurt Burdeska

Jost Von Der Crone

Hans P Kolliker

Joachim Dazzi

Gerhard Umsonst

Werner Sieber

Pigment compositions

Isoindolines of formula I ##STR1## wherein Y is a radical of formula II, III, IV, IVa, V or VI ##STR2## wherein Y, R.sub.1, R.sub.2, R.sub.3, A, Z, Q, X.sub.2, X.sub.3 and n are defined in claim 1, are most suitable for coloring organic material of high molecular weight.

Isoindoline pigments containing at least one triazolopyrimidone radical

A composition comprising (a) a dianthraquinonyl pigment of formula I ##STR1## (b) a compound of formula II ##STR2## wherein X.sup..sym. is H.sup..sym. or a group of formula M.sup.n.sym. /n or N.sup..sym. (R)(R.sub.1)(R.sub.2)(R.sub.3), M.sup.n.sym. is a monovalent metal cation of valency n, n is 1, 2 or 3, each of R, R.sub.1, R.sub.2 and R.sub.3 independently is hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.6 cycloalkyl, phenyl or phenyl which is substituted by C.sub.1 -C.sub.18 alkyl, or R.sub.2 and R.sub.3, together with the linking nitrogen atom, are a pyrrolidine, imidazolidine, piperidine, piperazine or morpholine radical, or R.sub.1, R.sub.2 and R.sub.3, together with the linking nitrogen atom, are a pyrrole, pyridine, picoline, pyrazine, quinoline or isoquinoline radical, r and t are each independently of the other 0 or 1, with the proviso that at least one of r and t must be 1. Especially when used in varnishes pigment mixtures of this kind are distinguished in particular by enhanced color strength and high gloss and, most particularly, by improved rheology.

Novel compositions based on C.I. Pigment Red 177

1,4-diketopyrrolo[3,4-c]pyrrole pigments

Compounds of the formula ##STR1## in which R.sub.1 and R.sub.2 are unsubstituted or substituted phenyl or naphthyl, and R.sub.3 and R.sub.4 are alkyl, alkoxycarbonyl, phenyl, benzoyl or benszl, are suitable for dyeing high molecular weight organic material.

Compositions pigmented with N-substituted

Compounds of the formula ##STR1## in which R.sub.1 and R.sub.2 are unsubstituted or substituted phenyl or naphthyl, and R.sub.3 and R.sub.4 are alkyl, alkoxycarbonyl, phenyl, benzoyl or benzyl, are suitable for dyeing high molecular weight organic material.

N-substituted 1,4-diketopyrrolo-[3,4-c]-pyrroles

A photoelectrophoretic imaging process, wherein a suspension of photosensitive pigment particles between two electrodes, at least one of which is transparent, is subjected to the influence of an electric field and exposed to an image, which process comprises using, as photosensitive pigment, a perylenetetracarboxylic acid diimide of the formula ##STR1## wherein R.sub.1 and R.sub.2 are aliphatic, cycloaliphatic, aromatic or heterocyclic radicals. The pigments used in this invention are distinguished by particularly good photoelectrophoretic sensitivity and low fog density.

Use of perylene pigments for photoelectrophoretic imaging

The invention relates to a process for coloring linear polyesters in the melt. The process comprises the use of 1-hydroxy-4-phenylaminoanthraquinones of the formula ##STR1## wherein one X is a hydrogen atom and the other is an alkylsulfonyloxy or chloroalkylsulfoxy group and Y is a hydrogen or halogen atom or an alkyl group. The violet shades obtained are distinguished by excellent color strength and purity and also by good fastness properties.

Process for coloring linear polyesters in the melt

1-Hydroxy-4-heteroarylaminoanthraquinones of the formula ##STR1## wherein Q is for example one of the two groups of the formulae ##STR2## are most suitable for the mass coloration of polyester. They are distinguished in particular by good lightfastness and purity of shade. Further definitions of Q will be found in claim 1.

1-Hydroxy-4-heteroarylaminoanthraquinones

A process for the mass coloration of thermoplastics with anthraquinonylaminotriazines of the formula ##STR1## wherein each of X.sub.1 and X.sub.2 is an alkylmercapto or arylmercapto group or a group of the formula --NR.sub.1 R.sub.2, in which each of R.sub.1 and R.sub.2 is alkyl, cycloalkyl, aralkyl or aryl, and R.sub.2 can additionally be hydrogen, or R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached and optionally a further heteroatom form a 5- or 6-membered ring, one Y is a hydrogen or chlorine atom, a hydroxy, arylmercapto, alkanoylamino or aroylamino group, or a group of the formula ##STR2## and the other Ys are hydrogen atoms, Hal is a chlorine or bromine atom, and n is 0 or 1. Yellow to orange colored fibres of clear shade, good color strength and fastness properties are obtained.

Process for the mass coloration of thermoplastics with

The invention discloses a process for the coloration of organic material of high molecular weight, wherein the colorant is a compound of the formula ##STR1## wherein Hal represents a chlorine or bromine atom, X represents a hydrogen or halogen atom, an alkyl or alkoxy group of 1 to 6 carbon atoms, an alkoxycarbonyl group of 2 to 7 carbon atoms, a phenyl group or a phenoxy group which is unsubstituted or substituted by chlorine atoms or methyl groups, and Y and Z represent hydrogen or halogen atoms or methyl groups.

Process for the coloration of organic material of high molecular weight

Use of anthraquinone derivatives of the formula ##STR1## wherein X is --NH-- or --S--, one Y is --NHCOR, R being an alkyl, aryl or heterocyclic residue, the other Y are hydrogen, Z is halogen, and n is 0, 1, 2 or 3, whereby Z may be 1 to 3 halogen bound to aryl and/or anthraquinone nucleus and/or the residue R, for dyeing polyesters in the melt.

Process for dyeing polyesters in the melt

Process for the improvement of dyeing properties of pigments of the anilino and arylmercapto anthraquinone series for bulk dyeing linear polyesters by halogenation of unhalogenated or lower halogenated compounds of the formula ##STR1## WHEREIN A is an anthraquinoidal radical being free from nitro groups, X is --NH-- or --S--, n is a number of 1 to 4 and R.sub.1 to R.sub.5 are hydrogen, halogen, alkyl, alkoxy, aryloxy, arylcarbonyl or arylsulphonyl.

Process for the improvement of dyeing properties of pigments of the

New arylaminoanthraquinones of the formula ##STR1## in which one X denotes an aryloxy or arylmercapto group, the other X denote hydrogen atoms, one Y denotes a nitro group and the other Y denotes a hydrogen atom and W denotes a hydrogen atom or a methyl, methoxy or trifluoromethyl group which are suitable for dyeing high-molecular organic compounds, especially for the bulk dyeing of linear polyesters.

1-Nitroarylamino-5 or 8-phenoxy or phenylmercapto anthraquinone

An arylaminoanthraquinone of the formula ##STR1## in which one X, in the 5- or 8-position, denote either the radical of the formula ##STR2## or a hydrogen atom, the other X denote hydrogen atoms, alkoxy groups with 1-4 C atoms, aryloxy, arylmercapto or acylamino groups, one Y denotes a nitro group and the other denotes a hydrogen atom, one or two Z which are not adjacent to the nitro group denote chlorine atoms and the remaining Z denote hydrogen atoms, and the Q denote hydrogen or halogen atoms which is useful for coloring high-molecular material.

Growing community of inventors

Oberwil, Switzerland

Max Jost