Hoechst Aktiengesellschaft

Albert Munkel

Erwin Dietz

Heinz Uhrig

Manfred Schneider

Dieter Schnaitmann

Wolfgang Rieper

Adolf Kroh

Helmut Eckes

Rainer Winter

Otmar Hafner

Rainer Klein

Ferdinand Memmel

Pulverulent pigment preparation comprising a) an organic or inorganic pigment, b) a compound from the group consisting of novolaks, alkoxylated fatty alcohols, bisphenol polyglycol ethers, alkoxylated fatty amines, alkoxylated fatty acids or the esterification and/or arylation products prepared from a natural or modified castor oil fatty compound, which are alkoxylated and, if desired, esterified with dicarboxylic acids to form linked structural repeating units, c) a water-soluble mixture of polyvinyl alcohol and vinyl alcohol or of vinyl alcohol copolymers, and d) further customary additives, the sum of all components being 100% by weight. Plasters and emulsion paints are pigmented by simply stirring in the pulverulent pigment preparation.

Pulverulent pigment preparation

The demands on the properties of pigments, in particular in the areas of emulsion paints and printing inks, which are continuously becoming more specific made it necessary to develop selective and environmentally safe dispersing and emulsifying agents and coupling auxiliaries. The compounds according to the invention are alkoxylation products prepared from fatty amine dialkylenediamines which, if desired, are linked to give recurring structural units by means of esterification with dicarboxylic acids and in which, preferably, the hydroxyl end groups of these fatty amine alkylenediamine alkoxylates have been esterified with fatty acids, aromatic carboxylic acids and/or resin acids and any hydroxyl groups still present have been converted to the corresponding mono-ester-containing anionic radicals by means of dicarboxylic acids and sulfites. The compounds according to the invention are suitable for a wide range of areas of application in the surfactant sector, for example in the preparation of azo pigments, emulsion paints and printing inks, for the improvement of coloristic and rheological properties. The compounds according to the invention are particularly environmentally safe owing to their biodegradability.

Surface-active compounds based on alkoxylated fatty amines

The demands on the properties of pigments, in particular in the fields of emulsion paints and printing inks, which constantly become more specific have made it necessary to develop selective and environmentally friendly dispersing, emulsifying and coupling auxiliaries. The compounds according to the invention are esterification and/or arylation products prepared from natural or modified castor oil or ricinoleic acids, which products are alkoxylated and, if desired, linked by esterification with dicarboxylic acids to give recurring structural units. If desired, the terminal hydroxyl groups of these modified alkoxylates of castor oil fatty substances have been esterified with fatty acids, aromatic carboxylic acids and/or resin acids and any free hydroxyl groups which may be present have preferably been reacted with dicarboxylic acids and sulfite to give the corresponding monoesters containing anionic radicals. The compounds according to the invention are suitable for a wide range of applications in the field of surface-active agents, for example in the preparation of azo pigments, emulsion paints and printing inks, for improving the coloristic and rheological properties. The compounds according to the invention are particularly compatible with the environment owing to their biodegradability.

Surface-active compounds based on modified castor oil fatty substances

The invention relates to pigment dispersions which contain, as dispersing agents, alkylglycol ether-sulfates and phosphoric acid esters of fatty alcohols and oxyethylated fatty alcohols and which are suitable for pigmenting aqueous media, in particular cosmetic articles, such as soaps, fingerpaint colors and washing powders.

Pigment dispersions, processes for their preparation and their use

Aqueous pigment preparations which contain (a) 5 to 80% by weight of a finely-divided inorganic and/or organic pigment, (b) 5 to 80% by weight of an aequeous polyurethane dispersion, (c) 2 to 80% by weight of water and (d) 0 to 50% by weight of an organic solvent.

Aqueous pigment preparation, and the use thereof

Addition products formed from polymeric diphenylmethane 4,4'-diisocyanates, amines, monoactive and diactive polymers are suitable for use as dispersants for solids in organic media.

Addition compounds and process for their preparation

In the present application, addition compounds of hydroxyalkylimidazolines, aromatic or araliphatic diisocyanates and polyols are described and claimed, as are their preparation by reaction, initially of two reactants and then with the third, optionally in an inert solvent, and the use of these addition compounds as dispersants for solid materials in non-aqueous liquids, in particular pigment dispersions.

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Liederbach, Germany

Albert Munkel