Bayer Materialscience Ag

Bayer Aktiengesellschaft

Covestro Deutschland Ag

Bayer Materialscience, LLC

Covestro Intellectual Property Gmbh & Co. Kg

Frank Otto

Reinhard Albers

Klaus Lorenz

Norbert Eisen

Don S Wardius

Torsten Heinemann

Keith J Headley

Walter Klan

Michael Loof

Stephanie Vogel

James Thompson-Colon

Martin Marazita

Ulrich Leyrer

Thomas Heidelmann

A cavity between inner and outer walls of an open-box-shaped mold is filled with a polyurethane reaction mixture, containing an isocyanate and an emulsion of an isocyanate-reactive composition with three polyols and a blowing agent, which is cured to a polyurethane containing polymer. The inner and outer wall are a fixed distance from one another and each wall comprises a bottom and sides. The mixture is fed through an inlet in the bottom of the outer wall. Before filling the cavity, the mold is turned downwards so that the mixture foams upwards, filling the cavity. The three polyols are polyether polyol obtained by adding an epoxy to carbohydrates or difunctional or higher-functional alcohols; polyether polyol obtained by adding an epoxy to an aromatic amine; and polyester polyether polyol obtained by adding an epoxy to the esterification product of an aromatic dicarboxylic acid derivative and a difunctional or higher-functional alcohol.

Insulation moulding and method for its manufacture

The present invention provides a process for the preparation of polyols based on fatty acid esters and starter compounds having Zerewitinoff-active hydrogen atoms and the use thereof for the preparation of polyurethane materials.

Process for the preparation of polyether-ester polyols

The present invention relates to a process for the preparation of polyether ester polyols starting from fatty acid esters and starter compounds having Zerewitinoff-active hydrogen atoms, and to their use in the production of solid or foamed polyurethane materials.

Process for the preparation of polyether ester polyols

Process for preparing rigid polyurethane foams

Growing community of inventors

Hilden, Germany

Frank Otto