Hoechst Aktiengesellschaft

Aventis Corporation Gmbh

Peter Mischke

Hermann Fuchs

Kurt Hohmann

Fritz Meininger

Erwin Fleckenstein

Manfred Sittig

Werner H Russ

Hartmut Springer

Ludwig Schlafer

Gunther Schwaiger

Michael Meier

Konrad Opitz

Reinhard Mohr

Wolfgang Teige

Gerhard Noltner

Uwe Mrotzeck

Heinrich Angenendt

Johannes Hartel

Horst-Roland Mach

Stefan Heffels

Hans Jakob Schladetsch

Gerd Konig

Karl Rebsamen

Eckhard Schwab

Gerd Pelster

The present invention relates to an apparatus for the uniform distribution of a small amount of liquid on bulk materials. The method is performed by spraying the liquid with at least one ultrasonic nozzle onto the bulk material, which is finely particulate. The spraying may occur before, during, or both before and during, mixing the particulate solid in a mixing apparatus. Dust may be significantly reduced by the apparatus of the instant invention, and the apparatus is useful for applying not only liquids, but emulsions, solutions, dispersions, or melts. The mixer may be mechanical or pneumatic.

Apparatus for the uniform distribution of a small amount of liquid on

Cellulosic textiles are printed or dyed with multiple hook reactive dyes without fabric hand harshening on using a reactive dye preparation containing 0.5 to 10% by weight of a surfactant and 0 to 10% by weight of an antifoaming agent.

Prevention of fabric hand harshening on printing of dyeing cellulosic

Process for producing concentrated aqueous solutions of anionic azo dyes

Low-dust or dust-free dye preparations

N-acylaminoalkyl 2-hydroxyethyl sulfides and a process for their

Free radical heavy metal ions in water-soluble heavy metal complex dyestuffs are removed from the synthesis solution of the heavy metal complex dyestuff by means of a compound or several of the compounds mentioned below:

Process for the reduction of heavy metal ions in excess from aqueous

Azo compounds corresponding to the general formula (1) ##STR1## in which m represents the number 1 or 2, the cyano groups being attached to D in the ortho-position relative to the azo group,

AZO compounds containing cyano and vinyl-sulfone groups, a process for

Dye salts of a mono- or polycationic dye where the anion conforms to a general formula (1) or (2)

Novel dye salts of cationic dyes, having thiocyanatometallate or

Water-soluble azo compounds, having fiber-reactive properties and yielding (for instance, on cellulose fiber materials) deep and fast dyeings and prints, of the formula ##STR1## in which D is phenylene which can be substituted by one or two subtituents from the group consisting of lower alkyl, lower alkoxy, hydroxy, lower alkanoylamino, benzoylamino, benzoylamino substituted by lower alkyl, lower alkoxy, chlorine and/or sulfo, chlorine, bromine, fluorine and carboxy and/or by a nitro group and/or by a further group of the formula Y--SO.sub.2 --(CH.sub.2).sub.n -- in which Y has the meaning given below and n here is 1 or 2, or D is naphthylene which can be substituted by one or two substituents from the group consisting of lower alkyl, lower alkoxy, hydroxy, lower alkanoylamine, benzoylamino, benzoylamino substituted by lower alkyl, lower alkoxy, chlorine and/or sulfo, chlorine, bromine, fluorine, carboxy and sulfo and/or by a nitro group, or D is the benzothiazol-2-yl radical which contains the indicated group Y--SO.sub.2 --(CH.sub.2).sub.n -- in the carbocyclic ring and can be further substituted in this benzene nucleus by a substituent from the group consisting of lower alkyl, lower alkoxy, hydroxy, lower alkanoylamino, benzoylamino, benzoylamino substituted by lower alkyl, lower alkoxy, chlorine and/or sulfo, nitro, chlorine, bromine and sulfo, M is hydrogen or an equivalent of a metal, R is the acyl group of an optionally substituted lower alkanoic acid, lower alkenoic acid, aromatic carboxylic acid, lower alkanesulfonic acid, aromatic sulfonic acid, carbamic acid or lower alkenesulfonic acid, Y is the vinyl group or a group --CH.sub.2 --CH.sub.2 --Z in which Z represents a radical which can be eliminated under alkaline conditions, or the hydroxy group, and n is zero, 1 or 2.

Water-soluble benzothiazole-azo- and phenyl-azo-compounds containing a

Process for dyeing cellulose fibers or cellulose blend fibers, which comprises dyeing the fibers mentioned with water-soluble reactive dyes which contain in the dye molecule at least once the structural element of the formula ##STR1## in which Y denotes a hydroxyl, hydroxymethyl, alkoxy C.sub.1 -C.sub.4, aldehyde, carboxamide, monoalkyl C.sub.1 -C.sub.4 -carboxamide, dialkyl C.sub.1 -C.sub.4 -carboxamide, monophenyl carboxamide, cyano, alkyl C.sub.1 -C.sub.4 -oxycarbonyl or sulfo group or a halogen atom, in an aqueous medium within the pH range 4-11.

Process for dyeing or printing cellulose fibers or cellulose blend

A water-soluble azo compund of formula ##STR1## in which Y is vinyl or --CH.sub.2 --CH.sub.2 --Z in which Z is chlorine, bromine, fluorine, lower alkanoyloxy, benzoyloxy, sulfobenzoyloxy, benzenesulfonyloxy, toluenesulfonyloxy, lower alkylsulfonylamino, arylsulfonylamino, phenoxy, dialkylamino, each alkyl being of from 1 to 4 carbon atoms, thiosulfato, phosphato or sulfato;

Water-soluble monoazo compounds containing a N-(sulfoalkyl)-aniline

Water-soluble fiber-reactive phthalocyanine compounds of the general formula (1) ##STR1## in which Pc denotes the radical of metal-free or metal-containing phthalocyanine, with the sulfonic acid or sulfonamide groups being bonded in the 3-positions of the aromatic rings of the phthalocyanine, R.sub.1 and R.sub.2 each denote a hydrogen atom or an alkyl group of 1-6 carbon atoms and which can be substituted by methoxy, ethoxy, propoxy, C.sub.2 H.sub.5 --O--C.sub.2 H.sub.4 --O--, cyano, acetylamino, carboxyl, HO.sub.3 S--, H.sub.2 O.sub.3 P--, phenyl, methylphenyl, methoxyphenyl, dimethylamino, diethylamino, .beta.-hydroxyethylamino, .beta.-hydroxyethoxy, N-phenylureido, N-alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 ureido or N-cycloalkylureido groups or an allyl, 2-methallyl, crotyl or cycloalkyl group, and R.sub.1 and R.sub.2, together with the nitrogen atom, can represent the radical of a heterocyclic saturated or unsaturated ring, or R.sub.1 and R.sub.2 represent a phenyl radical which can be substituted by methyl, ethyl, methoxy, ethoxy, carboxyl or sulfonic acid groups, R.sub.3 denotes a hydrogen atom or an alkyl group of 1 to 4 carbon atoms and which can be substituted by hydroxyl or carboxyl groups, X represents a hydrogen atom or an alkyl or alkoxy group of 1 to 4 carbon atoms, Y represents the vinyl group or the grouping of the formula --CH.sub.2 --CH.sub.2 --Z in which Z denotes an inorganic or organic radical which can be eliminated under alkaline conditions, a represents a number between 0 and 2, b represents a number between 0 and 2 and c represents a number between 1.7 and 2.6, with the proviso that the sum of a, b and c is at most 4, a process for their preparation, and their use for dyeing wool, silk, polyamide fibers, leather or materials containing hydroxyl groups.

Water-soluble fibre-reactive phthalocyanine compounds

Water-soluble disazo compounds, which can be used as fiber reactive dyestuffs and correspond to the general formula ##STR1## in which Y is vinyl or --CH.sub.2 --CH.sub.2 --Z, Z being sulfato, phosphato, halogen or hydroxy;

Water-soluble disazo compounds suitable as fiber-reactive dyestuffs

Azo-dyestuff of the formula ##STR1## in which D represents nitrophenylene, ##STR2## DINITRO-PHENYLENE, NITRO-CYANO-PHENYLENE, NITRO-CHLORO-PHENYLENE, NITRO-BROMO-PHENYLENE, TRICHLORO-PHENYLENE, NITRO-DICHLORO-PHENYLENE, DINITRO-CHLORO-PHENYLENE, DINITRO-CYANO-PHENYLENE, NITRO-BROMO-CYANO-PHENYLENE, DINITRO-BROMO-PHENYLENE, PHENYLAZO-PHENYLENE, ##STR3## R represents hydrogen, chlorine, lower alkyl, lower alkoxy, --O--CH.sub.2 --CN, --NH--CO--lower alkyl, --NH--COO lower alkyl or ##STR4## n stands for the integer 1 or 2, X represents cyano, --CO--NH.sub.2 or --COO-lower alkyl, R.sub.1 represents hydrogen, lower alkyl, lower alkylene-OH, lower alkylene-CN, lower alkylene-OCO-lower alkyl or lower alkenyl, and R.sub.2 represents lower alkyl, lower alkylene-O-CO-lower alkyl or lower alkylene-COO-lower alkyl, said dyestuffs being suitable for the dyeing or printing of synthetic fibrous materials, such as fibers of cellulose-di-, -21/2- or -triacetat, polyamides, polyurethanes, polyolefines, polycarbonates and particularly of linear polyesters, the dyeings or prints obtained being distinguished by a very good build up, tinctorial strength and a series of very good fastness properties.

Water-insoluble monoazo-dyestuffs for synthetic fibrous materials

Novel azo dyestuffs -- being water-soluble only in traces -- containing in the coupling component the grouping of the formula ##STR1## in which R represents hydrogen, lower alkyl, lower alkylene-O-CO-lower-alkyl, lower alkylene-COO-lower alkyl, cyano-lower alkyl, chloro-lower alkyl, benzyl or cyclohexyl, R.sub.1 represents hydrogen, alkyl of from 3 to about 14 carbon atoms, cyanoethyl, hydroxyethyl, acetoxyethyl or benzyl, and R.sub.2 represents alkyl of from 3 to about 14 carbon atoms, benzyl, phenylethyl, cyclohexyl, phenyl, methylphenyl, ethylphenyl, methoxyphenyl, ethoxyphenyl, nitrophenyl, chlorophenyl or bromophenyl, or R.sub.1 and R.sub.2 together with the nitrogen atom morpholinyl or piperidyl, said dyestuffs being suitable for the dyeing or printing of synthetic fibrous materials, especially consisting of linear polyesters, the dyeings or prints obtained on said materials being distinguished particularly by an excellent fastness to thermofixation.

Growing community of inventors

Bad Soden am Taunus, Germany

Peter Mischke