Henkel Kommanditgesellschaft Auf Aktien

Deutsche Gold- Und Silber-scheideanstalt Vormals Roessler

Henkel Kommanditgesellschaft Auf Aktien (henkel Kgaa)

Cognis Deutschland Gmbh

Degussa Aktiengesellschaft (henkel Kgaa)

Peter Christophliemk

Rudolf Novotny

Willi Wust

Wolf-Achim Roland

Helmut Endres

Karl-Dieter Brands

Franz-Josef Carduck

Karl-Heinz Worms

Hans Dolhaine

Jurgen Von Laufenberg

Helmut Schmidt

Bernd Fabry

Klaus Schumann

Manfred Biermann

Werner Stein

Theodor Altenschopfer

Joerg Riesop

Ralph Nonninger

Wolfgang Friedemann

Juergen Foell

Christine Schroeder

Riza N Oezelli

Christian Kropf

Christian N Kirsten

Wolfgang Greb

Johannes W Hachgenei

Gerald Schreiber

Friedrich W Diekotter

Christine Schroder

Siegfried Staller

Josef Sadlowsky

Juergen Von Laufenberg

Herrmann Schirra

Ernst Vaeth

Guenther Tischbirek

This invention relates to adhesive compositions of which the binder system contains nanoscale particles with ferromagnetic, ferrimagnetic, superparamagnetic or piezoelectric properties. The invention also relates to dissolvable adhesive bonds and to a process for dissolving adhesive bonds.

Detachable adhesive compounds

The invention relates to the use of nanoscale sterols and/or sterol esters with particle diameters of 10 to 300 nm as food additives and as active substances for the production of hypocholesterolemic agents. The particular fineness of the particles promotes more rapid absorption by the blood serum after oral ingestion by comparison with conventional sterols and sterol esters.

Use of nanoscale sterols and sterol esters

Method for producing alkali metal silicates by heating cristobalite or

Effective, titanium-free agents for activating metal surfaces prior to phosphating these surfaces with phosphating baths containing zinc ions can be made by reacting alkali metal phosphates with 1,1-diphosphonic acids and their alkali metal slats and/or poly(aldehydocarboxylic acids) and their alkali metal salts.

Titanium free composition and process for activating metal surfaces

Effective, titanium-free agents for activating metal surfaces prior to phosphating these surfaces with phosphating baths containing zinc ions can be made by reacting alkali metal phosphates with 1,1-diphosphonic acids and their alkali metal salts and/or poly(aldehydocarboxylic acids) and their alkali metal salts.

Activation of metal surfaces prior to phosphating can be improved by using aqueous dispersions of polymeric titanium(IV) phosphates in which at least 95% by weight of the polymeric particles have a particle diameter of less than 200 nm. This low particle diameter is attained by adding a titanium(IV)-complexing agent before or during an otherwise conventional reaction between a titanium(IV) compound, acid or phosphate, and water. The complexing agent is used in an amount of less than the stoichiometric amount, based on the titanium(IV) content. The best complexing agents are poly(aldehydocarboxylic acids), 1,1-diphosphonic acids, and/or the alkali metal salts of these types of acids.

Composition and process for activating metal surfaces prior to zinc

This invention is directed to an aqueous, thixotropic dishwater detergent composition which is at room temperature a paste having a viscosity of at least about 30 Pa.s as measured at 20.degree. C. with a rotational viscometer at 5 spindle revolutions per minute, the dishwasher detergent composition comprising:

Dishwasher detergent paste

A process for the hydrothermal production of clear sodium silicate solutions by reacting sand and aqueous NaOH solution wherein an excess of 5 to 10% by weight of sand is used and the reaction is conducted in a rotating pressure vessel until 90 to 95% complete, after which it is transferred and completes in a blow-off vessel.

Hydrothermal production of clear sodium silicate solutions

In a process for the conversion of meta-kaolin into an aqueous alkaline suspension of low-grit, water-containing zeolitic sodium aluminosilicate of the smallest particle size having the molar composition:

Process for the continuous conversion of meta-kaolin into very

A process for hydrothermally disintegrating wastes or residues having a high content of calcined aluminum oxides by reacting said wastes or residues with an aqueous sodium hydroxide solution having a concentration of sodium hydroxide of from about 20 to about 50% by weight at a temperature in the range of from about 180.degree. to about 250.degree. C. under a saturated steam pressure corresponding to said temperature. The sodium aluminate solution obtained is separated off and optionally filtered.

Hydrothermal disintegration of calcined aluminum oxide wastes

Antacids containing zeolitic sodium aluminosilicates and/or potassium aluminosilicates of the A, X, Y, or P type molecular sieves with pharmaceutical adjuvant material. Such antacids are useful in the treatment of gastric hyperacidity and other related conditions.

Antacids containing zeolitic molecular sieves

A process for the hydrothermal fusion of aluminum silicate and alkali aluminum silicates with aqueous sodium hydroxide solution under pressure and at elevated temperatures in the presence of soluble silicates, in which an aqueous solution containing from about 20 to about 50% by weight of NaOH is mixed with aluminum silicates and/or alkali aluminum silicates, and with a hydrothermally fusible silicate component, wherein the ratio by weight of SiO.sub.2 to Al.sub.2 O.sub.3 in the mixture amounts to at least 30:1 and the ratio by weight of SiO.sub.2 to Na.sub.2 O amounts to at least 1.5:1, and the mixtures are reacted at temperatures of from about 180.degree. to about 250.degree. C. and under the saturated steam pressures corresponding to those temperatures. The resulting sodium silicate solution, which contains the dissolved aluminum, is then separated off.

Hydrothermal decomposition of aluminum silicates

In a process for the production of an aqueous alkaline suspension of low-grit, crystallized zeolitic sodium aluminosilicate of the smallest particle size having the composition

Process for the continuous crystallization of zeolitic sodium

A process for the continuous production of an aqueous, alkaline suspension of x-ray amorphous sodium aluminosilicate having a small particle size of at least 99% by volume of a particle size of less than 50.mu., suitable for conversion into zeolite sodium aluminosilicate of the smallest particle sizes, by mixing an aqueous sodium aluminate solution with an aqueous sodium silicate solution in the presence of excess sodium hydroxide solution at a temperature in the range of from 20.degree. to 103.degree. C., where the solutions being mixed have a mathematical total molar ratio of:

Continuous process for the production of amorphous sodium

A process for the preparation of fine droplet-reacted sodium aluminosilicates with the smallest particle sizes, containing less than 0.1% by weight of granules exceeding 25 .mu.m in size, said aluminosilicates being insoluble in water and containing some bound water, of the general formula

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Dusseldorf, Germany

Peter Christophliemk