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

US12012494B2 · kind B2 · utility

Assignee

• Covestro Deutschland AG · DE

Inventors

• Christopher Schirwitz · Leverkusen, DE
• Michael Erkelenz · Duisburg, DE
• Birte Sämisch · Cologne, DE
• Rainer Protte · Dormagen, DE
• Martin Döbler · Düsseldorf, DE
• Eckhard Wenz · Neunburg vorm Wald, DE

Key dates

• Filing date: Dec 12, 2018
• Grant date: Jun 18, 2024
• Expiry date: Oct 12, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2201/003
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

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.