Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Matthias Knaupp

Thomas Grimm

Henning Börger

Rolf Wehrmann

Helmut Werner Heuer

Ulrich Grosser

Anke Boumans

Tim Hungerland

Joachim Morick

John Bauer

Marius Nolte

Constantin Schwecke

Julian Marschewski

Henning Boerger

The present invention relates to an E/E component comprising electrical conductors Land L, which are connected via a thermoplastic material M. The distances between the electrical conductors Land Lare dependent on the operating voltage of the E/E component. The thermoplastic material comprising polycarbonate, selected rubber-modified graft polymer and phosphorus-containing flame retardant exhibits a high tracking resistance and allows small distances and hence a small design overall.

E/E component containing polycarbonate material having high tracking resistance

Multilayer composite material comprising specific polycarbonate compositions as matrix material The present invention relates to a composite material comprising one or more fibre layers composed of a fibre material and an aromatic polycarbonate-based matrix material. The fibre layer(s) is/are embedded in the matrix material. The present invention further relates to a process for producing these fibre composite materials, to multilayer composite materials comprising several layers of fibre composite material, and to the use of the composite materials for production of components or housing components or housings, and to the components, housing components or housings themselves.

Multilayer composite material containing special polycarbonate compositions as a matrix material

A process for joining two sheeting articles reinforced with unidirectionally aligned endless-fibres by ultrasonic welding, wherein the fibres are embedded in a matrix of polycarbonate and the sheeting articles have abutting ends that are substantially rectangular and substantially even. The process comprises (1) arranging the sheeting articles next to one another end-to-end in the region of the abutting ends in a welding apparatus between a sonotrode and an anvil, (2) welding the sheeting articles by means of ultrasound, wherein the sonotrode and the anvil exert pressure on the to-be-welded sheeting articles in the melting region between the sheeting articles and perpendicularly to the abutting ends of the sheeting articles, and (3) removing the sheeting articles that are welded to one another from the welding apparatus. Also provided is a second process for joining two sheeting articles, a sheeting article, an apparatus, and a multilayer composite.

Method and device for connecting fibre-reinforced webs

A heat dissipation system for a heat source, wherein the heat dissipation system comprises a heat pipe, a heat coupling-in element, and a heat coupling-out element, wherein the heat coupling-out element comprises at least 50% by weight of a thermally conductive thermoplastic composition having an in-plane thermal conductivity of 1 to 50 W/(m*K). Also provided is a luminaire.

Device for dissipating heat from a heat source, and use thereof

Method and device for connecting two webs (), reinforced with unidirectionally oriented continuous fibres, by ultrasonic welding, wherein the fibres are embedded in a matrix of polycarbonate and the webs have abutting edges that are substantially square and substantially flat, characterized by the following steps:&#x2014;arranging the webs abutting one another in the region of the abutting edges in a welding device between a sonotrode () and an anvil (),&#x2014;welding the webs by means of ultrasound, wherein the sonotrode and the anvil exert pressure on the webs to be welded in the melting region between the webs and perpendicularly to the abutting edges of the webs,&#x2014;removing the welded-together webs () from the welding device.

Growing community of inventors

Langenfeld, Germany

Matthias Knaupp