Basf Aktiengesellschaft

Basf Se Corporation

Herbert Haberkorn

Werner Steck

Helmut Jakusch

Walter Heckmann

Laszlo Marosi

Helmut Auweter

Herbert Stutz

Karl H Illers

Werner Huebner

Dieter Horn

Rainer Feser

Frank Runge

Volker Rauschenberger

Heribert Bohn

Jens Rieger

Erik Luddecke

Nina Musaeus-Jensen

The invention relates to stable, pulverulent lycopene formulations, comprising lycopene having a degree of crystallinity of greater than 20%, processes for their preparation and their use as an additive to foodstuffs, cosmetics, pharmaceuticals and animal feedstuffs.

Stable, pulverulent lycopene formulations, comprising lycopene having a degree of crystallinity of greater than 20%

Carotenoid preparations in the form of coldwater-dispersible powders are produced by

Production of carotenoid preparations in the form of

Acicular ferromagnetic chromium dioxide is stabilized by treatment with an alkali metal hydroxide in an aqueous alkaline suspension at elevated temperatures.

Stabilization of acicular ferromagnetic chromium dioxide

Ferromagnetic chromium dioxide is improved by subjecting chromium dioxide materials prepared by a known method to an additional heat treatment.

Preparation of ferromagnetic chromium dioxide

The invention relates to a process for the manufacture of noncellular polyurethane elastomers by reacting 4,4'-diisocyanato-1,2-diphenylethane or diisocyanato-1,2-diphenylethane isomer mixtures with a 4,4'-diisocyanato-1,2-diphenylethane content in excess of 95 percent by weight, higher molecular weight polyhydroxyl compounds and low molecular weight chain extenders optionally in the presence of auxiliaries and additives. The polyurethane elastomers produced in accordance with this invention excel by a greater hardness and improved mechanical properties compared with polyurethane elastomers based on 4,4'-diphenylmethane diisocyanate with otherwise comparable composition.

Process for the preparation of noncellular polyurethane elastomers based

The invention relates to a method for the preparation of cellular polyurethane elastomers with densities of approximately 250 to 800 grams per liter by reacting 4,4'-diisocyanato-1,2-diphenylethane or a diisocyanato-1,2-diphenylethane isomer mixture with a 4,4'-diisocyanato-1,2-diphenylethane content of more than 95 percent by weight with higher molecular weight polyhydroxyl compounds and water, as well as optionally chain extenders in the presence of auxiliaries and/or additives according to the one-shot or preferably the prepolymer method in closed molds. Compared with products based on 4,4'-diisocyanatodiphenylmethane, the polyurethane elastomer molded parts have improved physical and thermal properties.

Process for the preparation of cellular polyurethane elastomers based on

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Grünstadt, Germany

Herbert Haberkorn