Bayer Aktiengesellschaft

Bayer Materialscience Ag

Wolfgang Nising

Siegfried Anders

Rüdiger Gorny

Thomas Scholl

Hans-Josef Buysch

R&uuml;diger Gorny

Wolfgang Ebert

Peter Bier

Melanie Möthrath

Marco Roelofs

Christian Lindner

Rolf Wehrmann

Ulrich R Grigo

Helmut-Werner Heuer

Volker Serini

Horst Peters

Wilfried Haese

Herbert Hugl

Ralf Hufen

Peter Capellen

Robert Maleika

Winfried Paul

James P Mason

Claus Rüdiger

Martin Döbler

Helmut Schmid

Jürgen Röhner

Hartmut Lower

Heidemarie Pantke

Paul Winfried

Sylvia Braun

Hartmut L&ouml;wer

A multilayer product characterized by its improved weatherability and mechanical properties is disclosed. The product contains a layer A containing a member selected from the group consisting of transparent thermoplastic material and a lacquer, the member containing at least one UV absorber, a layer B containing a transparent thermoplastic material and containing at least one colorant, and a layer C containing a transparent thermoplastic material. Also disclosed is a process for the preparation of the inventive multilayer product.

Multi-layer weather-resistant, coloured panel

A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1) or (1), in which O-D-O and O-E-O independently denote a diphenolate group, -D- and -E- independently denote an aromatic group having 6 to 40 carbon atoms, k is a whole number from 1 to 1500, o stands for numbers from 1 to 1500, and m is z/o and n is (o-z)/o wherein z is 0 to o.

Polyformals as a coextrusion protective layer on polycarbonate

A thermoplastic molding composition characterized by its optical brightness and good weathering resistance is disclosed. The composition contains a poly(ester) carbonate an optical brightener conforming to  

Polycarbonate or polyester carbonate containing optical brighteners

A thermoplastic molding composition especially suitable for preparing extruded articles is disclosed. The composition contains polycarbonate, a fatty acid ester and a triazine conforming to formula (I)

Compositions containing polycarbonate

Compositions containing polycarbonate and one or more esters derived from a linear carboxylic acid and branched alcohol are disclosed. The inventive compositions feature improved processing properties and are especially suitable for preparing extruded articles.

A thermoplastic molding composition comprising polycarbonate and 50 ppm to 300 ppm, in relation to the weight of the composition, of diphenyl carbonate is disclosed. The composition is especially suitable for the preparation of extruded sheets, in particular coextruded.

Polycarbonate containing diphenyl carbonate and sheets made therefrom

A multilayered article made of a plastic material which exhibits high IR reflection and a high gloss is disclosed. The article includes at least three layers A, B and C, wherein layer A contains a transparent thermoplastic plastics material, and wherein layer B contains a transparent thermoplastic plastics material and a pigment which consists of a transparent support material and a titanium dioxide layer of thickness 150 to 200 &#x3bc;m, and where layer C contains a transparent thermoplastic plastics material.

Multilayered article

Polycarbonate moulding compounds

A method of using an extrudable thermoplastic compositions that contains a mixture of benzotriazoles is disclosed. The composition is suitable for producing sheets having improved surface quality.

Composition containing thermoplastic polymers

A molding having at least part of its surface coated with a water-spreading coating is disclosed. The coating comprise a salt of sulfondicarboxylic diester, a water-insoluble oxide of metal or semi-metal and an acid/water mixture. It is applied to at least one surface of the molding.

Water-dispersing coated shaped bodies and their utilization

A polycarbonate molding composition containing a UV absorber and two types of mold release agents is disclosed. The composition is suitable for use as coating or external layer on coextruded sheets.

Polycarbonate moulding compounds and their use as layers in coextruded sheets

The invention relates to coated moldings of polycarbonates with a coating (A) against the effect of UV radiation and, optionally a coating (B) to prevent the formation of droplets.

Coated polycarbonate moldings

The present invention relates to UV-protected, multilayer polycarbonate sheets containing a base sheet, at least one outer layer and optionally at least one additional protective layer, and to the production of the polycarbonate sheets according to the invention by coextrusion.

UV-protected, multilayer polycarbonate sheets

An article of manufacture having a hydrophilic coating is disclosed. To the article which may be made of a thermoplastic or from a thermoset resin there is applied a coating which comprise a segmented, aliphatic-aromatic polyether block copolycarbonates containing aromatic carbonate structural units and aliphatic polyether carbonate structural units. The coating may contain a surfactant.

Growing community of inventors

St. Augustin, Germany

Wolfgang Nising