Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Other

Voith Patent Gmbh

Tecnaro Gesellschaft Zur Industriellen Anwendung Nachwachsender Rohstoffe Mbh

Eyerer, Peter

Erdmann, Alfons

Peter Eyerer

Arved H Westerkamp

Benjamin Holstein

Peter Elsner

Norbert Eisenreich

Wilhelm Eckl

Lars Ziegler

J&uuml;rgen Pfitzer

Rudolf Emmerich

Thomas Keicher

Helmut N&auml;gele

Adam Geissler

Helfried Urban

Maik Ziegler

Andreas Happ

Volker Komanschek

Christian Naydowski

Helmut Nagele

Günter Helferich

Emilia Inone

Bernd Bader

Christian Anselment

Wolfgang Merz

Martin Staiger

Robert Hilbing

Jürgen Pfitzer

Helmut NÄGELE

Heimo Rud

Michael Kespe

Rainer Schmachtel

In a method for applying a surface structure to a solid body, a structured surface is placed directly or indirectly onto the surface of the solid body and the structure of this structured surface is reproduced in the surface of the solid body, in that an explosive structured layer is arranged on the surface of the solid body and the structure of the explosive structured layer is explosively disseminated into the surface of the solid body. According to the invention, the surface of the solid body is provided with a surface pre-structure before the actual dissemination, at least in regions, wherein the structure of the explosive structured layer is disseminated on at least one partial region of the surface pre-structure so that the surface structure produced results from overlapping of the surface pre-structure with the explosively disseminated structure.

Method for applying a surface structure to a solid body and solid body provided with such a surface structure

The invention concerns a composition for the production of shaped bodies, consisting of polymer lignin, shellac and natural fibers and also a method for the production of shaped bodies from such a composition via production of a shaped body through extrusion.

Composition for the production of shaped bodies and method for the production of shaped bodies made of said composition

A plastic material made from a polymer blend, is characterized in that said material contains at least one lignin-based natural polymer, in particular based on alkali lignin produced during the extraction of cellulose, and at least one other synthetic and/or natural polymer which increases the impact resistance, proteins excluded. The inventive plastic material has excellent characteristics. It is biodegradable due to the natural polymer content and has, to a considerable extent, an ecologically neutral CO balance. The polymer blend can be used advantageously in place of wood or wood materials.

Plastic material made from a polymer blend

A method for producing a substantially rod-shaped composite body ( ) consists of a core ( ) enveloped by at least one polymer, according to which the plasticized polymer ( ) is extruded onto the core ( ). At least one natural polymer is used and a sliding agent on the basis of native oils and/or waxes is added before or during extrusion. The method is used for the production of writing, drawing, cosmetic pencils.

Method for producing a rod-shaped composite part and rod-shaped composite part

Process for manufacturing composite bodies made of plastics

Process for enlarging the surface of particles

The present invention relates to a method for surface structuring of workpieces, in particular molds for plastics processing, erosion electrodes or the like, in which a structured surface is applied to an unstructured workpiece surface in order to map the structure into the workpiece surface. In order to provide a method which can be carried out more quickly, and which involves no environmentally hazardous process steps, it is proposed that a structure layer which has the structured surface is arranged between an explosive layer and the workpiece surface, and the structure is forced into the workpiece surface by detonating the explosive layer or a surface-structured explosive layer is arranged on a workpiece surface, and the structure is embossed onto the workpiece by detonating the explosive layer. The invention furthermore relates to a workpiece produced using this method, such a an injection-molding mold, a blowing mold, a compression mold, a foaming mold and a pressure-casting mold, erosion electrode or the like, in which the structure is forced into the workpiece surface by means of an explosive layer.

Method for surface structuring, and a surface-structured workpiece

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Karlsruhe, Germany

Peter Eyerer