Tesa Se

Tesa Ag

Sven Reiter

Arne Koops

Thilo Dollase

Daniel Schmitz-Stapela

Uwe Schümann

Bernd Lühmann

Matthias Koop

Jochen Stähr

Frank Hannemann

Bernd Bunde

Norio Arai

Olaf Postel

Susanne Katz

Jerome Stoltze

Reactive adhesive film, comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from the group consisting of a radical initiator and an activator, and a reactive 2-component adhesive film system for bonding various materials, such as metal, wood, glass and/or plastic.

Reactive 2-component adhesive film system

Adhesive bonding of eloxated aluminum to plastic, with a product having at least one layer of a latently reactive adhesive film which has a thermoplastic component having a melting point T(melting) where 35&#xb0; C.&#x2266;T(melting)&#x2266;90&#xb0; C. and contains functional groups that can react with isocyanate and an isocyanate-containing component dispersed in particulate form in the thermoplastic and is essentially deactivated in the region of the particle surface, the particles having a start temperature T(start) where 40&#xb0; C.&#x2266;T(start)&#x2266;100&#xb0; C. and where T(start)&#x2266;T(melting).

Use of a latently reactive adhesive film for adhesive bonding of eloxated aluminum to plastic

A process for preparing titanium carbide using a pigment formulation having at least one titanium compound and a carbon compound and/or elemental carbon, the pigment formulation reacting under laser irradiation to form TiC.

Process for preparing titanium carbide

Disclosed is a method for inscribing or marking surfaces (), especially metal surfaces. In said method, the surface () that is to be inscribed or marked is coated with an absorption promoter () in a first step, whereupon a high-energy beam (), e.g. a laser beam, which colors the surface () as a result of the interaction with the absorption promoter by means of a temperature increase, is applied to surface elements that re to be inscribed or colored.

Method for inscribing or marking surfaces

The present invention provides a method of marking or inscribing a workpiece () with high-energy radiation, more particularly with a laser beam (), the workpiece () being transparent for the radiation wavelength, and a polymer matrix () being disposed in the vicinity of the workpiece () in such a way that the radiation passes through the workpiece () before it impinges on the polymer matrix (), characterized in that disposed between the polymer matrix () and the workpiece () is a film () of liquid which is in contact with the polymer matrix () and with the workpiece ().

Method of marking or inscribing a workpiece

The present invention provides a method of and apparatus for marking or inscribing a workpiece () with high-energy radiation, more particularly with a laser beam (), the workpiece () having a light-scattering surface () and the material of the workpiece () being transparent for the radiation wavelength, and a polymer matrix () being disposed on the workpiece () in such a way that the radiation passes through the workpiece () and its light-scattering surface () before impinging on the polymer matrix (), characterized in that the light-scattering surface () of the workpiece () is wetted with a liquid or viscoelastic medium ().

According to the present invention, a method of working material with high-energy radiation is provided, wherein a polymer matrix () is irradiated with high-energy radiation, in particular with a laser beam (), wherein the radiation is focused onto a focal point () and the focal point () is set such that the focal point () lies behind the surface () of the polymer matrix () facing the radiation, and material removal is brought about at the polymer matrix (), and consequently a reaction space () is created within the polymer matrix ().

Method of working material with high-energy radiation

A method of applying a durable process mark to a glass article using a laser. A transfer sheet is applied to the glass substrate, the transfer sheet includes a carrier layer with a first adhesive layer, adhered partially to a bottom side of the carrier layer. On the face of the carrier layer there are a first and a second pigment layer. The transfer sheet is lased, forming a durable process mark in the glass article.

Method of applying a durable process mark to a product, more particularly glass

Pigment layer intended particularly for the permanent marking of glass, based on a polymer matrix which reacts predominantly with pulverization to a high-energy beam, more particularly to laser irradiation, comprising at least one titanium donor and a carbon donor which provides free carbon under energy irradiation.

Pigment layer and method of permanently scribing a substrate by means of high-energy radiation

A multilayer laser transfer film for permanently inscribing parts made from at least one backing layer, where on at least part of the underside of the backing layer there is a first adhesion layer, characterized in that, on the backing-layer side of the laser transfer film, this being the location of the first adhesion layer, there are at least two pigment layers, preferably a first pigment layer applied to at least part of the material and comprising at least one glass flux pigment, and a second pigment layer applied to at least part of the material and comprising at least one laser-sensitive pigment.

Multilayer laser transfer film for permanently inscribing parts

The invention relates to a multi-layer laser transfer film for the permanent labeling of components, comprising at least one support layer, whereby a first adhesive layer is at least partly provided on the underside of the support layer, characterised in that on the side of the support layer for the laser transfer film on which the first adhesive layer is provided, at least two pigment layers containing a laser-sensitive pigment are at least partly provided, whereby the concentration of the laser-sensitive pigment in the pigment layers varies.

Multi-layer laser transfer film for the permanent labeling of components

Laser transfer film for durable inscription on components made from at least one backing layer, where on at least part of the underside of the backing layer there is an adhesion layer, wherein a pigment layer which comprises at least one laser-sensitive pigment has been applied to at least part of the adhesion layer and/or backing layer.

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Hamburg, Germany

Sven Reiter