Bayer Materialscience Ag

Bayer Aktiengesellschaft

Covestro Deutschland Ag

Deutsche Solar Gmbh

H.c. Starck Ceramics Gmbh & Co. Kg

3m Innovative Properties Company

Bayer Intellectual Property Gmbh

Gunther Stollwerck

Andreas Seidel

Alexander Meyer

Frank Buckel

Peter Woditsch

Robert Maleika

Joerg Reichenauer

Birgit Meyer Zu Berstenhorst

Christian Hässler

Gianmaria Malvestiti

Andrea Scagnelli

Heinz Pudleiner

Klaus Horn

Wilfried Haese

Wolfgang Koch

Jens Weichold

Mark Gravermann

Massimo Tironi

Peter Capellen

Robert Eiben

Günther Walze

Bernd Schubert

Gerhard Wötting

Hubert Ehbing

Peter Schuster

Christopher R Wilson

Jürgen Ramthun

Rainer Reeken

Christian H&auml;ssler

Jörg Reichenauer

Karl-Heinz Dörner

Sven Gestermann

Michael Niedermeyer

Ernst-Ulrich Reisner

Mirco Gunjaca

Katrin Petzel-Maryniak

Christine Brigitte Bund

Martin Andreas Milek

An embodiment of the present invention relates to a composition comprising a) at least one transparent thermoplastic material; b) at least one inorganic IR absorber comprising at least one boride compound present in an amount of from 0.0015 wt. % to 0.015 wt. %, calculated as solids content of boride in the total polymer composition; and c) at least one inorganic, nano-scale pigment present in an amount of from 0.0008 wt. % to 0.0035 wt. %, based on the total composition; and d) optionally further additives.

Polymer composition having heat-absorbing properties and improved colour properties

The invention relates to a polymer composition which absorbs infrared radiation (IR), containing a transparent thermoplastic plastic, an inorganic infrared absorber, also referred to as IR absorber hereinbelow, at least one inorganic nano-scale pigment, and the combination of at least two organic coloring agents of a specific structure, and to the preparation and use of the polymer compositions according to the invention and to products produced therefrom.

Polymer composition having heat-absorbing properties and high stability to weathering

Compositions, suitable for coating surfaces, methods for their preparation and for coating surfaces therewith, where said compositions comprise: (a) 100,000 parts by weight of a primer composition comprising a binder material (a1), a primer solvent (a2) and a UV absorber (a3), wherein the primer composition is suitable as an adhesion-promoting agent between a thermoplastic substrate and a siloxane-based top coat; (b) 0 to 900,000 parts by weight of a solvent, and (c) 1 to 3000 parts by weight of a compound according to the general formula (I): wherein X represents a moiety selected from the group consisting &#x2014;OR, &#x2014;OCHCHOR, &#x2014;OCHCH(OH)CHORand &#x2014;OCH(R)COOR, wherein Rrepresents a branched or unbranched C-Calkyl, C-Calkenyl, C-Caryl or &#x2014;CO&#x2014;C-Calkyl, Rrepresents H or a branched or unbranched C-Calkyl, and Rrepresents a C-Calkyl, a C-Calkenyl or a C-Ccycloalkyl, and wherein the composition has a viscosity of 40 s to 140 s measured in accordance with DIN EN ISO 2431 at 23&#xb0; C. and with a 2 mm cup.

UV protective compositions, processes for preparing such compositions, methods of coating substrates therewith and multi-layer articles formed thereby

The invention relates to a multilayer product comprising a first layer (A), a second layer (B), a third layer (C), and a fourth layer (D). The first layer (A) is a scratch-resistant protective layer having a minimum extinction of 0.3 at 340 nm, the second layer (B) is an alkyl acrylate layer having a minimum extinction of 2 at 340 nm, and the third layer (C) and the fourth layer (D) contain a UV-stabilized polycarbonate. The invention also relates to a method for manufacturing the multilayer product.

Weather-resistant multilayer systems

The present invention relates to a polymer composition which absorbs infrared (IR) radiation, containing a transparent thermoplastic plastic, an inorganic infrared absorber and at least one inorganic nano-scale pigment, and to the preparation and use of the polymer compositions according to the invention, and to products produced therefrom. In particular, the present invention relates to polymer compositions comprising

The present invention relates to a multilayer, surface structured solid plate for light guidance, the base material of which consists of a transparent plastic material, and optionally one or more cover layers.

Light-guiding surface structure

A multi-layered product in the form of sheet, film or a three dimensional molded article is disclosed. The product comprised a first layer (A) having a thickness of 1 &#x3bc;m to 2 mm containing polyalkyl (meth)acrylate and 0.01 to 20 percent relative to the weight of said first layer of a UV stabilizer and a second layer (B) that contains polycarbonate. The stabilizer conforms to formula (I) wherein X denotes OR; OCHCHOR; OCHCH(OH)CHORor OCH(R)COOR, Ris branched or unbranched C-Calkyl, C-Calkenyl, C-Caryl or &#x2014;CO&#x2014;C-Calkyl, Ris H or branched or unbranched C-Calkyl, and Ris C-Calkyl; C-Calkenyl or C-Ccycloalky. The product is characterized by its optical transparency and resistance to yellowing and is most suitable for glazing applications.

UV-stabilized polycarbonate moldings

Solar modules in which the front side is composed of transparent polyurethane are made by RIM, injection molding and casting processes and combinations thereof.

Solar modules with a transparent polyurethane front side and a process for producing same

The invention relates to a silicone nitride based substrate for semi-conductor components, said substrate containing silicon nitride (Si3N4), silicon carbide (SIC) and silicon oxynitride(Si2N2O) as crystalline phases. The silicon phase content is less or equal to 5%, the shrinkage during production is less than 5% and the open porosity of the substrate is less than 15% vol. %. The invention also relates to a method for the production and use of said substrate as an element of semi-conductor components, particularly thin film solar cells, and semi-conductor components which contain said substrate.

Silicon nitride based substrate for semi-conductor components

Directionally solidified, multicrystalline silicon having a low proportion of electrically active grain borders, its manufacturing and utilisation, as well as solar cells comprising said silicon and a method of manufacturing said cells.

Multicrystalline silicon having a low proportion of active grain borders

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Krefeld, Germany

Gunther Stollwerck