Covestro Deutschland Ag

Bayer Intellectual Property Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Sven Gestermann

Alexander Meyer

Klaus Horn

Joachim Ritter

Gunther Stollwerck

Hans Georg Grablowitz

Stephan Schubert

Joerg Reichenauer

Birgit Meyer Zu Berstenhorst

Christian Hahn

Gianmaria Malvestiti

Andrea Scagnelli

Reiner Witkowski

Jörg Reichenauer

Holger Breuer

Massimo Tironi

Alexander Pross

Christian Joachim Hahn

The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of micro structured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.

Process and apparatus for continuous production of aqueous polyurethane dispersions

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

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Leverkusen, Germany

Sven Gestermann