Basf Aktiengesellschaft

Thomas Anstock

Gunnar Schornick

Manfred Walter

Hans-Joachim H&auml;hnle

Wolfgang Heider

Jens Kremesk&ouml;tter

Ansgar Eisenbeis

Ulrich Schr&ouml;der

Heinrich Hartmann

Matthias Schwarzmann

Matthias Kroner

Roland Minges

Ekhard Winkler

Juergen Thomas

Martin Beck

Ulrich Lebert

Eckhard Neufeld

Walter Himmel

J&uuml;rgen Tropsch

Roland Spahl

Heinz Dreyer

Wolfgang Schmid

Juergen Steinmetz

Hans-J Urgen Krauss

J Urgen Tropsch

Hans-Joachim H Ahnle

Hans-Joachim H{umlaut Over (a)}hnle

Water-absorbing, cellular, cross-linked polymers with improved distribution effect, method for their production and their use

Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use

Absorber elements are described of at least one composite material having absorbent elements on a support, in which a plurality of elements of a superabsorbent foam are arranged on at least one support in a grid pattern at distances such that the elements in the swollen state touch at their peripheries.

Absorber element of superabsorbent foams having anisotropic swelling behavior

Water-absorbent cross-linked polymers in foam form

Water-absorbing, expanded, crosslinked polymers, the production and use

Process for the preparing high molecular weight polymers by polymerization of water-soluble, monoethylenically unsaturated moonomers and, if desired, crosslinkers, and, if desired, water-insoluble monoethylenically unsaturated monomers, in aqueous solution in the presence of polymerization initiators in a tubular reaction which at the end has a conical taper, the ratio of the diameter of the reactor (D1) to the diameter at the end of the conical taper of the reactor (D2) being from 2:1 to 25:1 and the angle between D1 at the beginning of the conical taper and the inner cone wall being &gt;45.degree. and &lt;90.degree., and discharge of the gelatinous reaction mixture from the reactor by injection of an inert gas.

Preparation of high molecular weight polymers

Water resistant films and coatings are prepared by treating films or coatings of water soluble or dispersible grafted proteins prepared with monoethylenically unsaturated monomers at above 40.degree. C. and/or with at least one compound which is a hardener for proteins, and are useful as compostable packaging materials or as outer layers of diapers.

Preparation of water resistant films and coatings and use thereof

A process for the preparation of a base oil and middle distillate which is stable to oxidation and low temperature from a mineral oil fraction having a boiling range above 350.degree. C., by, in a first step, converting the mineral oil fraction on a hydrocracking catalyst under hydrocracking conditions to an extent of from 20 to 80% by weight into fractions which boil below 360.degree. C., separating the reactor effluent, if necessary, into liquid and gas phases in a high-pressure separator, treating the entire reactor effluent or only the liquid phase, directly or after removal of the fractions boiling below 360.degree. C. by distillation, in a second step with hydrogen at from 200.degree. to 450.degree. C. and at from 20 to 150 bar in the presence of a catalyst which contains a crystalline pentasil-type borosilicate zeolite, alumina and/or amorphous alumosilicate as the carrier material and one or more metals from Group VIb and/or Group VIII of the Periodic Table and phosphorus, and, after distillation of the hydrogenation product, obtaining a middle distillate in the boiling range from 180.degree. to 360.degree. C. having a pour point of below -30.degree. C. and an oxidation-stable residue having a boiling point &gt;360.degree. C., a viscosity index of from 110 to 135 and a pour point of below -12.degree. C.

Preparation of oxidation-stable and low-temperature-stable base oils and

Medicinal white oils and medicinal paraffins are prepared from petroleum fractions containing aromatics and nitrogen, oxygen and sulfur compounds, e.g. light and heavy atmospheric gas oils, vacuum gas oils and residues, which have been pretreated in a first stage by acid treatment or catalytic hydrogenation, by hydrogenation in a second stage over a nickel-containing catalyst under from 50 to 200 bar and at elevated temperatures, by a process in which the catalyst used in the second stage and present in the oxide form is reduced with a hydrogen-containing gas, passivated and then again activated with hydrogen, before the hydrogenation to medicinal white oils or paraffins is carried out.

Preparation of medicinal white oils and medicinal paraffins

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Weisenheim, Germany

Thomas Anstock