Basf Aktiengesellschaft

Basf Corporation

Basf Se Corporation

Cord Schmalkuche

Franz Xaver Redl

John P Erickson

Georg Partusch

Holger Leifheit

William P Venier

Diane Langer

Franz Redl

Wolfgang Pohl

Wei Liang Chien

Stefan Quaiser

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

An elastomeric composition includes a reaction product of an isocyanate component and a resin component comprising a polyol and a polyetheramine in the presence of a first catalyst comprising a metal and a second catalyst comprising an amine. An elastomeric system and a method of making an elastomer are provided. The method includes providing the isocyanate component and the resin component, combining the resin component and the isocyanate component in the presence of the first and second catalysts to form an elastomeric composition, applying the elastomeric composition to a mold having a mold cavity, curing the elastomeric composition to form the elastomer, and demolding the elastomer from the mold cavity. An article including a first layer formed from the elastomeric composition emits less than 100 &#x3bc;g/g of volatile organic compounds over 0.5 hour at 90&#xb0; C.

Elastomeric composition

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Damme, Germany

Cord Schmalkuche