Basf Aktiengesellschaft

Badische Anilin- & Soda-fabrik Aktiengesellschaft

Ewald Daubach

Knut Oppenlaender

Manfred Herrmann

Horst Belde

Erwin Hahn

Dieter Horn

Karl Stork

Herbert Uhrig

Leonhard Von Rambach

Herbert Naarmann

Rolf Fikentscher

Roman Fischer

Richard Hoene

Eduard Hartmann

Hans Langenfelder

Bertold Honigmann

Heinz Saukel

Helmut Preugschas

Highly concentrated, dust-free, solid and readily dispersible pigment formulations contain

Highly concentrated, dust-free, solid and readily dispersible pigment

The invention seeks to provide a free-flowing formulation of one or more disperse dyes, with which packages can be dyed homogeneously by the HT process without filtering out of the dye, and which is suitable for the thermosol dyeing process. According to the invention such a formulation comprises one or more disperse dyes (a) enclosed in a matrix of one or more polymers (b) which are soluble, or colloidally soluble, both in water and in an organic solvent, in the form of a solid solution in a state of molecular dispersion or of extremely fine subdivision so that in an X-ray spectrum the dye appears amorphous. The formulations may contain additional assistants conventionally present when dyeing hydrophobic fibers. The formulations contain the disperse dye in an extremely fine state of subdivision. Because of the latter, the formulations give level package dyeings, without filtration of the dye, and very level dyeings when used by the thermofixing process.

Disperse dye formulations

The invention relates to an aqueous disperse dye or optical brightener formulation which comprises

Stable finely dispersed aqueous formulations of disperse dyes and

Easily water-dispersible pulverulent formulations of disperse dyes are prepared by spray-drying a dye solution which comprises

Spray-drying method for the preparation of water-dispersible pulverulent

Oxyalkylated bisphenols are obtained from 2,2-(p,p'-bishydroxydiphenyl)-propane and styrene in the presence of an acid catalyst and are then oxyalkylated, after which they may or may not be sulfated.

Surface-active phenolic derivatives

New and valuable herbicide based on 1-phenyl-4-amino-5-chloro (or -5-bromo)-pyridazone-(6) in the form of an aqueous suspension.

Herbicides

Aqueous pigment formulations containing glycol and having good flow, good water retention and good flocculation resistance which contain dipropylene glycol as a flow improver. The formulations are particularly suitable for pigmenting aqueous polymer dispersions and textile pigment printing and dope dyeing.

Flowable aqueous pigment formulations containing dipropylene glycol

Powdered, highly concentrated and stably dispersible dye formulations which are substantially devoid of dye agglomerates, which contain dyes which are not soluble in water such as disperse dyes or vat dyes, anionactive dispersing agents and (as stabilizing agent) from 2 to 30% by weight based on the dye of a polyethylene oxide having a molecular weight of from 200 to 1000 or a reaction product which has been obtained from

Powdered, highly concentrated and stably dispersible dye formulations

A new .beta.-modification of the dye of the formula: ##SPC1## Which is eminently suitable for dyeing polyesters in particular and which is surprisingly more stable under dyeing conditions than the modification already known.

.beta.-Modified azo dye

An aqueous pigment dispersion which contains (a) pigment, (b) a water-soluble surfactant and water and a water-retaining agent in which (b) is a reaction product of a polyhydroxyl compound with from 3 to 50 moles of propylene oxide and from 2 to 70 moles of ethylene oxide per equivalent of hydroxyl. The dispersions give bright and deep-shade emulsion paints or distempers containing cellulose ethers.

Growing community of inventors

Ludwigshafen, Germany

Ewald Daubach