Basf Aktiengesellschaft

Basf Lacke+farben Ag

Gerhard Hoffmann

Peter Neumann

Klaus Huemke

Dieter Faul

Bernd Bronstert

Reinhold J Leyrer

Werner Lenz

Rainer Blum

Peter Hoessel

Heinrich Hartmann

Karl-Heinz Etzbach

Heinz Eilingsfeld

Ulrich Heimann

John Lynch

John A Gilbert

Fritz Graser

Albert Elzer

Juergen Langen

Reinhold Schwalm

Horst Koch

Peter Lechtken

Son Nguyen-Kim

Peter Richter

Heinz-Ulrich Werther

Albrecht Eckell

Rudolf Vyvial

Reiner Hofmann

Dieter Kleuser

Thomas Wuensch

Herbert Hahn

Hartmut Hibst

Walter Denzinger

Manfred Patsch

Herbert Naarmann

Klaus Bronstert

August Lehner

Klaus Harth

Bernhard Albert

Dieter Littmann

Horst Binder

Harald Keller

Hans-Joachim Haehnle

Dietrich Haarer

Helmut Barzynski

Andreas Boettcher

Friedrich Seitz

Gerhard Bauer

Guenther Schulz

Herbert Stutz

Manfred Zuerger

Karl Gerberding

Karl-Rudolf Kurtz

Wolfgang F Mueller

Wolfgang Huemmer

Franz Feichtmayr

Mong-Jon Jun

Dieter Buhl

Manfred Dimmler

Josef Woellhaf

Hellmut Buensch

Manfred Schwarz

Paul Hecke

Elmar O Mueller-Horsche

Holger Reinecke

Rainer Fassler

Klaus Spreng

Milan Obradovic

The invention relates to a process for producing microstructure elements having structure depths of from several .mu.m to the mm region by imagewise irradiation of polymers with X-rays, where the polymers employed are aliphatic polyesters.

Production of microstructure elements

Cleaned or chemically pretreated metal surfaces are modified using aqueous solutions of amino-containing organic polymers, the metal surfaces thus modified being particularly suitable for coating by cathodic electrodeposition.

Modification of metal surfaces

Solutions of polyimide-forming substances contain

Solutions of polyimide-forming substances and their use as coating

Solutions of polyimide-forming coating materials

A heat curable coating composition, particular for cathodic electrocoating, comprises

Heat curable cathodic electrocoating composition

Synthetic resins contain, as essential components, A) from 20 to 95% by weight of a crosslinkable binder selected from the group consisting of the polymers, polyadducts or polycondensates having reactive centers in the form of hydroxyl, thio, primary and/or secondary amino groups and/or hydrophilic centers in the form of ammonium, sulfonium and/or phosphonium groups and B) from 5 to 80% by weight of polymers consisting of a core and one or more shells and furthermore C) from 0 to 10% by weight of one or more crosslinking agents and D) from 0 to 10% by weight of a pigment formulation consisting of one or more pigments and a resin having surfactant properties and E) from 0 to 10% by weight of additives and/or assistants.

Synthetic resins

A process for the production of micromoldings having a high aspect ratio by imagewise irradiation of a polymer with high-energy, parallel radiation from an X-ray source employs, as the polymer, a homo- or copolyoxymethylene.

Production of micromoldings having a high aspect ratio

Binder systems suitable for electrocoating and consisting of a base resin A which carries groups which can be protonated with acids or cationic quaternary groups and, if desired, hydroxyl or thiol groups, a crosslinking component B which carries at least two blocked isocyanate groups per molecule and an organic iron compound C which is partially or completely soluble in water, as a catalyst for the thermal crosslinking of components A and B, and if desired, an additive D which increases the catalytic activity of C, are used to prepare dispersions which are used for electrocoating.

Binders for electrocoating

Polymeric reaction products are obtained by reacting I) prepolymers obtained from

Polymeric reaction products

Synthetic resins are based on products which are obtainable by reacting

A process for producing a polymer/metal or polymer/semiconductor composite having an adhesive layer between the polymer and the metal or between the polymer and the semiconductor in which a layer of at least two different chemical elements is applied to the metal or semiconductor by vapor-deposition or cathode sputtering, then selectively or partially removing at least one chemical element of this layer in an etching process, and then applying the polymer.

Production of a polymer/metal or polymer/semiconductor composite

Structured layers of heat-resistant polycondensates are prepared by a process wherein ethylenically unsaturated tetracarboxylates or adducts or salts of tetracarboxylates, which still contain at least one unesterified carboxylic acid group, with ethylenically unsaturated amines, amides or onium compounds mixed with compounds which contain amino, isocyanate or blocked isocyanate groups and can be subjected to polycondensation with the tetracarboxylates are applied as a layer to a substrate, this layer is exposed through a negative, the unexposed, soluble parts are then removed and the insoluble parts are converted into the final polycondensate form at elevated temperatures.

Production of structured layers of heat-resistant polycondensates

A synthetic resin contains, as essential components,

Synthetic resin

Growing community of inventors

Otterstadt, Germany

Gerhard Hoffmann