Covestro Deutschland Ag

Bayer Intellectual Property Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Birte Sämisch

Thomas Eckel

Rolf Wehrmann

Alexander Meyer

Michael Erkelenz

Christopher Schirwitz

Eckhard Wenz

Helmut Werner Heuer

Rafael Oser

Ulrich Grosser

Timo Kuhlmann

Thomas Grimm

Martin Döbler

Sven Hobeika

Rainer Protte

Tanja Cassel

Gesa Dern

Martin Doebler

Klaus Kraner

Thomas Höhnk

Christoph Klinkenberg

Matthias Kroh

Thomas Thulke

Dirk Kurzidim

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

The invention relates to a composition obtainable by mixing polycarbonate, unsized talc and a specific anhydride-modified alpha-olefin polymer, wherein the amounts of the talc and the specific anhydride-modified alpha-olefin polymer are matched to one another such that, for every 10 parts by weight of the talc, 0.10 to 1.4 parts by weight of the anhydride-modified alpha-olefin polymer are used. It has been shown that in situ sizing of talc with the wax can minimize the degradation of the polycarbonate only in the course of mixing with the polycarbonate and, at the same time, properties such as multiaxial impact resistance and flowability can be improved.

Polycarbonate composition comprising talc

The invention relates to multilayer structures made of at least one thermoplastic material and having at least one metal layer. The invention further relates to multilayer products encompassing at least three layers comprising a substrate layer made of a substrate comprising specific copolycarbonates and at least one inorganic filler, a metal layer and one or more further layers. The invention further relates to the process for producing the said multilayer structures.

Metallized multilayer structure made of specific polycarbonates with low coefficient of thermal expansion

The invention relates to thermally conductive thermoplastic compositions with balanced processing capacity, i.e. with a balanced proportion of melt volume flow rate to heat distortion resistance, comprising a thermoplastic, an expanded graphite, at least one phosphorus compound, and also ethylene/alkyl (meth)acrylate copolymer.

Thermally conductive thermoplastic compositions featuring balanced processability

The present invention relates to a thermoplastic molding composition composed of polycarbonate and inorganic fillers which comprises from 0.01 to 0.5 part by weight of at least one anhydride-modified alpha-olefin terpolymer and which has a high degree of rigidity and nevertheless exhibits good strength, as well as stress-strain characteristics corresponding to those of an unreinforced polycarbonate. Surprisingly, the molding composition additionally exhibits an improvement in flame retardancy. The invention relates in particular to flame-retardant, thermoplastic molding compositions filled with glass fibers, and to the production and use thereof. The property profile is, surprisingly, independent of the degree of interaction of the filler with the polycarbonate matrix.

Polycarbonate comprising glass fibres

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Kö'ln, Germany

Birte Sämisch