Basf Aktiengesellschaft

Elastogran Gmbh

Basf Se Corporation

Heinz Forster

Hans-Juergen Reese

Georg Knoblauch

Franz Heimpel

Thomas Bartz

Heike Wild

Math&auml;us Rank

Jürgen Mertes

Edmund Stadler

Peter Reinerth

Matthias Hefner

Thomas Sandbank

Karl-Werner Hohl

J&uuml;rgen Mertes

Mathäus Rank

The invention relates to composite elements comprising the following laminar structure: (i) 2 to 20 mm metal; (ii) 10 to 100 mm polyisocyanate polyaddition products having a density ranging from 350 to 1050 kg/mthat can be obtained by reacting (a) isocyanates with (b) compounds, which are reactive to isocyanates, in the presence of (f) expanding agents, and; (iii) 2 to 20 mm metal.

Composite elements containing polyisocyanate polyaddition products

Composite elements containing polyisocyanate-polyaddition products

Composite elements containing compact polyisocyanate polyaddition products

A phase-stable polyol component comprises

Phase-stable polyol component

Pressurized, blowing agent-containing isocyanate semiprepolymer mixtures advantageously having an isocyanate content of from 5 to 25% and based on organic polyisocyanates and alkoxylated lignin having a hydroxyl number of from 30 to 80, preferably in admixture with lignin-free polyhydroxyl compounds are used for producing single-component polyurethane foams.

Pressurized, blowing agent-containing isocyanate semiprepolymer mixtures

The invention relates to pressurized, blowing-agent-containing isocyanate semiprepolymer mixtures, advantageously having an isocyanate content of from 5 to 25% by weight, based on organic polyisocyanates and polyhydroxyl compounds which are used in combination with a linear, branched or cyclic, saturated or olefinically unsaturated monoalcohol having 1 to 25 carbon atoms and/or hydroxyketones, preferably .beta.-hydroxyketones, the use thereof for the production of one-component polyurethane foams by allowing the isocyanate semiprepolymer mixtures to depressurize, and a process therefor.

Pressurized, blowing-agent-containing isocyanate semiprepolymer mixtures

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Wolfratshausen, Germany

Heinz Forster