Basf Aktiengesellschaft

Basf Se Corporation

Georg Partusch

Peter Horn

Dietrich Scherzer

Axel Kistenmacher

Juergen Schneider

Ulrich Treuling

Iran Otero Martinez

Ralf Fritz

Franz Xaver Redl

Christian Hagen

Holger Leifheit

Cord Schmalkuche

Markus Templin

Michael Fader

Karl H{umlaut Over (a)}berle

Gunter Tanny

Astrid Weidemann

J&uuml;rgen Schneider

Michael Bauer

J&ouml;rg P&ouml;ltl

Gerd Westermann

Klaus Schmutzer

Fikri Emrah Alemdaroglu

The present invention relates to a process for the production of polyurethanes where (a) polyisocyanate, (b) polymeric compounds having groups reactive toward isocyanates, (c) catalysts, (d) a CH-acidic compound of the general formula R&#x2014;CH&#x2014;R, where Rand Rindependently of one another are an electron-withdrawing moiety of the general formula &#x2014;C(O)&#x2014;Ror &#x2014;CN, where the moiety Ris selected from the group consisting of &#x2014;NH, &#x2014;NH&#x2014;R&#x2014;NRR, ORor R, where R, R, R, R, and Rare independently selected from the group consisting of aliphatic, araliphatic or aromatic hydrocarbons, which may have substitution, and optionally (e) blowing agent, (f) chain extender and/or crosslinking agent, and (g) auxiliaries and/or additives are mixed to give a reaction mixture, and the reaction mixture is allowed to complete a reaction to give the polyurethane. The present invention further relates to polyurethanes produced by this process and to the use of these polyurethanes in the interior of means of transport.

Polyurethanes having reduced aldehyde emission

The present invention relates to a spray-polyurethane system which comprises a polyol component (A) and an isocyanate component (B), where the polyol component (A) comprises a1) at least one compound reactive with isocyanate, a2) at least one reactive chain extender having at least two groups reactive toward isocyanates, where at least one group reactive toward isocyanates is a free, primary NHgroup, and also a3) at least one metal catalyst, and a4) if appropriate, further additives, where the spray-polyurethane system comprises no amine catalyst. The present invention moreover relates to a process for production of a backing layer composed of polyurethane for moldings and to the use of this backing layer for production of automobile parts. Inventive backing layers have good mechanical properties, and low emissions, and their demolding time is small when compared with the open assembly time.

Low-emission polyurethane backing layer, spray polyurethane system for producing such a backing layer, and use of such a backing layer

The invention provides composite components constructed of a layer i) comprising short fiber reinforced PU and having a paintable surface, and a layer ii) comprising long fiber reinforced polyurethane, and also provides a process for producing them, and provides for their use as exterior bodywork parts.

Polyurethane composite components and their use in exterior bodywork parts

Inner parting agents for producing self-parting moldings made of polyisocyanate polyaddition products

Growing community of inventors

Puergen, Germany

Georg Partusch