Bayer Materialscience Ag

Covestro Deutschland Ag

Bayer Intellectual Property Gmbh

Rainer Protte

Friedrich-Karl Bruder

Wilfried Haese

Eckhard Wenz

Rafael Oser

Karlheinz Hildenbrand

Wolfgang Fischer

Andreas Seidel

Alexander Meyer

Michael Erkelenz

Martin Döbler

Hubert Ehbing

Tim Hungerland

Uli Franz

Birte Sämisch

Christopher Schirwitz

Ice Zhang

Raymond Wong

Dirk Brüning

Philipp Möller

Philipp Moeller

Jan Wiekard

Joerg Wehrle

The invention relates to a filler-containing multi-layer structure on the basis of a polycarbonate composition, having a metal layer as a reflective layer and having a balanced property profile of CLTE, CLTE ratio, heat conductivity and lustre. This multi-layer structure can be used, inter alia, for reflectors or as a mirror element in head-up displays. Expanded graphite and burned silicon dioxide are contained as fillers. In the composition provided according to the invention, there is no need for an additional heat sink when implementing the component.

Multi-layer structure suitable for use as a reflector

The invention relates to a multilayer body comprising at least one substrate layer, a metal layer bonded directly thereto and optionally at least one protective layer atop the metal layer, wherein the substrate layer comprises a composition which is obtained by mixing polycarbonate, talc and a specific wax. It was shown that the multilayer bodies obtained are particularly suitable for use as reflectors and (housing) components for light sources and heat sources and displays.

Multilayer body, comprising a substrate layer containing polycarbonate, talc and wax

A composite and process for the production of a composite component, comprising a) a support of a thermoplastic composition, and b) at least one polyurethane layer in direct contact with the support.

Process for the production of polyurethane composite components

This invention relates to an optical recording medium in which at least a recording layer and a light transmitting layer are sequentially formed on a substrate and in which the light is illuminated from the light transmitting layer side for recording and/or reproducing information signals, said substrate comprising an injection molded part, and said substrate having a Young's modulus E of at least 2.15 GPa and a Q factor of lower than 160 measured at 25&#xb0; C. at 2000 Hz in accordance to ASTM E 756-05 05 and a transcriptability of the pit/groove structure of &#x3e;85%.

Disc shaped high density recording medium

Optical recording mediums comprising a substrate and a recording layer and a light transmitting layer sequentially disposed on the substrate; wherein the substrate comprises one or more parts selected from the group consisting of injection molded parts, injection molded sandwich structures having a molded surface layer and a molded core layer or two injection molded parts which are UV-bonded, and combinations thereof; and wherein the substrate has a Young's modulus E of at least 2.15 GPa and a Q factor of lower than 160 measured at 25&#xb0; C. at 2000 Hz in accordance to ASTM E 756-05.

Disc-shaped high-density recording mediums

Growing community of inventors

Dormagen, Germany

Rainer Protte