Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Christopher Schirwitz

Rolf Wehrmann

Michael Erkelenz

Alexander Meyer

Klaus Horn

Birte Sämisch

Eckhard Wenz

Martin Döbler

Tim Hungerland

Derk Erich Wandner

Rainer Protte

Ingmar Hermsdorfer

Tanja Grüter-Reetz

Tanja Grueter-reetz

Helmut Kruells

Matthias Rothe

Helmut Krülls

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 present invention relates to a thermoplastic composition comprising at least one aromatic polycarbonate, talc, at least one anhydride-modified alpha-olefin polymer, at least one organic flame retardant selected from: fluoropolymer-containing anti-drip agents, fluorinated sulfonic acid salts, organic phosphoric acid esters, phosphazenes or mixtures of at least two of the abovementioned agents and barium sulfate. The invention further relates to a production process for such a composition and to a molded article producible from this composition. The composition contains barium sulfate in an amount of ≥3% by weight based on the total weight of the composition. ≥5% by weight is preferred.

Heat-conducting polycarbonates having improved flame protection by means of barium sulfate

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 compositions based on aromatic polycarbonate comprising metal oxide-coated micas as effect pigment, which do not have any significant increase in molecular weight of the polycarbonate, as can be seen from the MVR, under thermal stress. This is achieved by the addition of small amounts of an anhydride-modified &#x3b1;-olefin polymer, optionally in combination with phosphorus-containing thermal stabilizer.

Polycarbonate composition comprising pearlescent pigment and/or interference pigment

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Leverkusen, Germany

Christopher Schirwitz