Covestro Deutschland Ag

Bayer Aktiengesellschaft

Bayer Materialscience Ag

Bayer Intellectual Property Gmbh

Webasto Ag

Covestro Intellectual Property Gmbh & Co. Kg

Stephan Schleiermacher

Hartmut Nefzger

Dirk Steinmeister

Klaus Lorenz

Stefan Lindner

Dirk Wegener

Dirk Legler

Norbert Eisen

Reinhard Albers

Wolfgang Grimm

Hans-Detlef Arntz

Erhard Michels

Frank Kiesewetter

Klaus Franken

Torsten Heinemann

Klaus Brecht

Michael Kölbl

Thomas Stemmer

Jan Woköck

Detlef Mies

Stephan Moers

Nicole Welsch

Joern Beaujean

Andreas Pielasch

Karin Clauberg

Michael Schedler

Patrick Klasen

Ralf Koester, Sr

Marc Sch&uuml;tze

Dieter Seidel

Henry Gu

Hans-Jürgen Liebig

Karsten Müller

Hans-Juergen Liebig

Jakob Marbach

Sebastian Koester

Hung Banh

Rolf Albach

Stefanie Rau

The invention relates to a polyurethane-polyurea binder which contains specific silicones or polyvinyl pyrrolidones and which is suitable for the manufacture of press materials from organic and/or inorganic materials, to the corresponding use of said binders and to the press materials manufactured using the specific binders.

Method of manufacturing of press materials

The invention concerns a new polyol composition from isopropylidenediphenol-based polyethers, which are used in an advantageous manner for the production of polyurethane-polyisocyanurate (PUR-/PIR) rigid foams, as well as their production and use in PUR/PIR rigid foams.

Rigid PUR/PIR foams of isopropylidenediphenol-based polyethers

The present invention relates to a process for producing a rigid polyurethane-polyisocyanurate foam C, comprising the step of reacting (i) an isocyanate-terminated prepolymer B with (ii) an activator component A comprising at least one trimerization catalyst A1 and at least one blowing agent A3 in a reaction mixture to form a foam, characterized in that&#x2014;there is used an isocyanate-terminated prepolymer B obtained from a reaction of an isocyanate B1 having a mean isocyanate functionality of from &#x2267;2.3 to &#x2266;2.9 with a polyol component B2, and&#x2014;the activator component A comprises water as the blowing agent A3 in an amount of from &#x2267;5 wt. % to &#x2266;50 wt. %,&#x2014;the isocyanate index in the reaction mixture is in a range of from &#x2267;400 to &#x2267;500, and&#x2014;the isocyanate content of the prepolymer B is in a range of from &#x2267;21 wt. % to &#x2266;30 wt. %, based on the total mass of the prepolymer B, and&#x2014;wherein in the reaction of the prepolymer B and the activator component A a conversion contribution to polyisocyanurate of &#x2266;75% is achieved. Rigid foams C so produced have good flame retarding properties while at the same time having good insulating properties and stability properties. The present invention relates further to a rigid polyisocyanurate foam C produced by the process according to the invention, to the use of such a rigid polyisocyanurate foam C in the production of heat-insulating structural components, and to a heat-insulating structural component comprising such a rigid polyurethane-polyisocyanurate foam.

Method for producing a hard polyurethane-polyisocyanurate foamed material

A roof module for motor vehicles is disclosed having an exterior skin, a material layer adjacent thereto, a spacer layer, and a circumferential plastic material.

Roof module for a motor vehicle

Polyurethane elastomers having a defined node density are produced from specific polyetherester polyols. These elastomers are particularly useful for the production of microcellular and solid polyurethane elastomer components.

Polyurethane elastomers and processes for their preparation and use

The invention provides polyurethane elastomers (PU elastomers), a process for their production using special catalyst mixtures and their use in particular for the manufacture of shoe soles.

Polyurethane elastomers, process for their production and use thereof

Growing community of inventors

Pulheim, Germany

Stephan Schleiermacher