Daimler Chrysler Ag

Eisenmann Maschinenbau Kg

Micro Compact Car Ag

Mercedes-benz Aktiengesellschaft

Aeg Elektronische Rohren Gmbh

Karl Woerwag Lack-und Farbenfabrik Gmbh & Co. Kg

Karl Woewag, Lack-und Faben-fabrik Gmbh & Co. Kg

Anja Keller

Juergen Hanf

Klaus Sussmann

Claudia Witt

Martin Hartweg

Karl Holdik

Fritz Dannenhauer

Michael Gailberger

Silvia Tomaschko

Fritz Mezger

Mona Ferguson

Gerhard Gassler

Gunter Maetze

Fritz Dannenhauser

Oliver Essig

Werner Funke

Ute Flammer

The invention relates to methods and apparatuses for separating components adhesively bonded to one another wherein transmitters for mechanical vibrations, in particular for ultrasound, and/or for electromagnetic radiation, in particular laser light, are placed in the region of an adhesive join between the components. An adhesive bond in the adhesive join is acted upon by the vibrations or radiation, and the adhesive and optionally one of the components joined therewith are excited, as a result of which the adhesive effect of the adhesive bond is at least reduced. Alternatively or in addition thereto, transmitters can also be permanently placed in the region of the adhesive join at the time the components are adhesively bonded.

Methods and apparatuses for detaching components adhesively bonded to one another

A process and apparatus for repairing small paint defects in powder paint coats. In the process, the paint defect is hollowed out, a filler body, which is adapted to the recess with respect to shape and/or volume, is placed in the recess, the filler body is connected with the powder paint coat surrounding the recess and hardened. In order to improve the quality of this repair, after inserting the filler body, pressure is exercised on the filler body at least at the start of the connecting and/or at least at the start of the hardening.

Process and device for repairing small paint defects in paint coats

A process for repairing relatively small paint faults in powder coating layers, in which, in the region of the faulty point, a cutout is introduced into the powder coating layer with precisely defined dimensions with respect to its area and also with respect to its depth. A filler made of powder coating and/or a pre-product of the powder coating is introduced into the cutout. The filler is dimensioned to correspond to the volume of the cutout, in particular corresponding to the dimensions of the cutout, and is coherent. The filler introduced is joined, in particular bonded, to the powder coating layer arranged outside the cutout.

Process for repairing paint faults in paint layers

A process for preparing a phosphor layer of a cathode ray tube. To prepare a phosphor layer located on the display screen rear side of the cathode ray tube, the display screen rear side is first coated with an electrically conductive electrode layer consisting of electrically conductive polymers; a solution containing the phosphors or their precursors as well as a solution containing an electrolyte are deposited on the electrode layer; an electric field is applied between the electrode layer and the solution; and the phosphors are electrophoretically deposited on the electrode layer to form the phosphor layer. Since polymers with an evaporation temperature below the destruction temperature of the phosphors are selected, the electrode layer can subsequently be removed by evaporating the polymers.

Process for preparing a phosphor layer of a cathode ray tube

The present invention relates to a painted sheet metal part, such as a car body, with a polyacid layer between the coat of paint and the surface of the sheet metal part and to a method for applying such a coating on the part before painting. Initially, the part is cleaned and de-greased, and subsequently the polyacid layer is deposited and stabilized. In order to be able to apply this layer without losing wet adhesion qualities of the coat of paint and the anti-corrosive effect of coating layer, while presenting fewer ecological disadvantages or harmful consequences, polyacids, which comprise homopolymers or copolymers of carboxylic acids containing double bonds or of functional esters of carboxylic esters, or copolymers of carboxylic acids with vinyl compounds, are used pursuant to the present invention as the protective bonding layer. The polyacids used are further combined with polymers having a glass transition temperature above 100.degree. C., such as phenolic resins, urea resins or epoxy resins, and/or with low molecular carboxylic acids with 2 to 30 carbon atoms in the carbon chain, in order to increase the corrosion protection effect. The deposited anti-corrosion layer is stabilized by thermal curing at about 100.degree. to 150.degree. C. The polymers of the corrosion inhibitor layer can be crosslinked intermolecularly, intramolecularly or with the adjacent paint layer with functional groups which are not absorbed by the substrate.

Painted sheet metal part with an anti-corrosion bonding layer based on

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Blaustein, Germany

Anja Keller