Covestro Deutschland Ag

Bayer Materialscience Ag

Other

Bayer Aktiengesellschaft

Bayer Intellectual Property Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Covestro Polymers (china) Co., Ltd.

Michael Erkelenz

Rolf Wehrmann

Alexander Meyer

Anke Boumans

Helmut-Werner Heuer

Klaus Horn

Helmut Werner Heuer

Eckhard Wenz

Andreas Seidel

Ulrich Liesenfelder

Rafael Oser

Alexander Karbach

Timo Kuhlmann

Silke Kratschmer

Ulrich Blaschke

Reiner Rudolf

Hans-Jürgen Thiem

Yu Ren

Birte Sämisch

Christopher Schirwitz

Martin Döbler

Winfried G Paul

James Y J Chung

Melanie Möthrath

Rainer Protte

Hans-Juergen Thiem

Hans Franssen

Emmanuel Bral

Leith Wang

Melanie Moethrath

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 present invention relates to flame-retardant moulding compositions comprising glass fibre and siloxane-containing polycarbonate block cocondensate, and also to a process for the production of these moulding compositions. The invention further relates to the use of these flame-retardant moulding compositions in injection-moulding and extrusion applications.

Flame-retardant, glass fiber-containing molding compounds containing siloxane-containing polycarbonate block co-condensate

The present invention relates to the use of diglycerol esters to enhance the flowability of graphite-containing, thermally conductive polycarbonate compositions. Melt viscosities and melt volume flow rates are improved.

Improving the flowability of thermoconductive polycarbonate compositions

The invention relates to polycarbonate compositions with an improved thermal behavior and improved slip characteristics, achieved by the use of oxidized, acid-modified polyethylene waxes.

Polycarbonate compositions containing polyethylene wax

The invention relates to at least partly transparent or translucent molded plastic parts for producing noise protection walls, facade components, and glazings which ensure effective bird protection. In particular, the invention relates to molded plastic parts comprising g) at least one substrate layer (matrix/base layer) containing at least one thermoplastic polymer, wherein the substrate layer comprises a base layer and a coextrusion layer adjoining said base layer, said coextrusion layer comprising at least one IR absorber; a) optionally at least one cover layer on at least one face of the substrate layer; and b) optionally a primer or an intermediate layer between the layers a) and b). The invention is characterized in that the molded plastic part has markings in the substrate layer, said markings reducing the transparency of the molded part in the wavelength range of 380 to 780 nm in the marked regions.

Bird protection glazing

The invention relates to polymer compositions for the production of mouldings, in particular spectacles and eye-protection equipment, which comply with the provisions of EN 169 (welder protection standard) and EN 1836/2005 (signal light detection). The compositions and mouldings are in particular processable at temperatures above 265&#xb0; C., recyclable and have a notched impact strength of at least 65 kJ/cm, and they comply with the required optical standards mentioned above.

Polymer composition with heat-absorbing properties

The present invention relates to flame-resistant, thermoplastic molding compositions containing at least one aromatic polycarbonate, at least one flameproofing agent, at least one rubber-free anhydride-modified alpha-olefin terpolymer, at least one glass fiber, at least one antidripping agent, and optionally, at least one mold release agent and/or further additives. The present invention furthermore relates to the use of the compositions according to the invention for the production of thin-walled housing parts or switch boxes in the EE sector.

Ethylene-propylene-maleic acid anhydride copolymer as impact modifier in glass-fiber reinforced, flame-retardant polycarbonates for the EE sector

The invention relates to glass fiber reinforced polycarbonate compositions and molding compositions of the present investor and distinguished by high rigidity, high flowabillty, high processing stability, good chemical resistance and good aging resistance vis-&#xe0;-vis the effects of light and heat compared with the prior art. The present invention also relates to the use of the compositions for the production of shaded articles and to shaped articles comprising the compositions according to the invention.

Glass fiber reinforced polycarbonate molding compositions

The present invention relates to a heat-absorbing polymer composition containing a transparent thermoplastic synthetic substance, an inorganic infrared absorber with stabilizer and also to the production and use of the polymer compositions according to the invention and to the products produced therefrom. In particular, the present invention relates to the stabilization of inorganic IR absorbers from the group of the tungsten compounds and also to the use of the polymer composition according to the invention containing these stabilized inorganic IR absorbers for the purpose of producing windowpanes for use in buildings, motor vehicles, rail vehicles or aircraft.

Polymer composition with heat-absorbing properties and high stability

An optical data storage comprising a thermoplastic copolycarbonate is disclosed. The copolycarbonate contains at least one unit derived from dihydroxydiphenyl ether and at least one unit derived from at least one member selected from the group consisting of 4,4'dihydroxybiphenyl and 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane.

Copolycarbonates having improved flowability

A branched polycarbonate and processes for its preparation are disclosed. The polycarbonate contains structural units conforming to in which R, R, Rand Rmutually independently denote C-Calkyl, R, Rand Rmutually independently denote hydrogen or C-Calkyl, or Rand R, and Rand R, with the carbon atom to which they are attached, form a C-Ccycloalkyl group, wherein the cycloalkyl group may be substituted.

Branched polycarbonates

A process of preparing a branched (co)polycarbonate resin is disclosed. The process entails using at least one compound conforming to formulae 1a or 1bin which

Highly branched (co)polycarbonates having improved flowability

Polycarbonate blends

Thermoplastic polycarbonate compositions having high toughness

Growing community of inventors

Duisburg, Germany

Michael Erkelenz