Basf Se Corporation

Evonik Operations Gmbh

Basf Aktiengesellscaft

Evonik Degussa Gmbh

Johann Klassen

Mark Elbing

Sirus Zarbakhsh

Marc Fricke

Holger Seifert

Hendrik Wagner

Werner Wiegmann

Martin Glos

Joachim Venzmer

Christian Eilbracht

Markus Schuette

Andreas Emge

Michael Klostermann

Carsten Schiller

Christian Koenig

Nils Mohmeyer

Stefan Dinsch

Joerg Krogmann

Markus Schütte

Jörg Krogmann

Frank Fechner

Tobias Kaluschke

Sebastian Koch

Christiane Giesker

Christian Stelling

Michele Gatti

Juergen Boos

Guenter Matzke

Louis Du Rieu

Jürgen Boos

Christian Konig

Christian KÖNIG

Markus SCHÜTTE

Günter Matzke

This invention relates to a polyol component P), to a process for preparing rigid polyurethane foams by using said polyol component P) and also to the rigid polyurethane foams themselves.

Polyol components and use thereof for the production of rigid polyurethane foams

A polyol component P) contains at least two different polyether polyols A) and C), and at least one polyether ester polyol D). A process can be used for producing rigid polyurethane foams using the polyol component P), and the rigid polyurethane foams produced therefrom are useful.

Polyol component and use thereof for the production of rigid polyurethane foams

A polyol component P) contains at least three different polyether polyols A) to C), and at least one polyether ester polyol D). A process for producing rigid polyurethane foams using the polyol component P) and the rigid polyurethane foams produced therefrom can be utilized.

Disclosed herein is a method for producing polyurethane or polyisocyanurate foams. The method involves reacting a composition (Z1) with at least one polyisocyanate, and occurs in the presence of at least one nucleating agent and a blowing agent, in which the nucleating agent and the blowing agent are mixed to obtain a composition (Z2) that is added to the composition (Z1) before it is reacted with the at least one polyisocyanate. The composition (Z1) contains (i) 100 parts by mass of a composition (ZP) including at least one polyol and at least one catalyst that catalyzes formation of a urethane, urea or isocyanuarate bond, and (ii) from 0.05 to 10 parts by mass of a surfactant TD having an HLB value below 6 and no silicon atom.

Composition that is suitable for producing polyurethane foams and that contains at least one nucleating agent

The present invention relates to a process for the production of composite elements comprising a first and a second outer layer, a vacuum insulation panel between the two outer layers, rigid polyurethane foam in contact with the first outer layer and the underside of the vacuum insulation panel, and also rigid polyurethane foam in contact with the second outer layer and the upper side of the vacuum insulation panel, comprising application of a reaction mixture (R1) for the production of a rigid polyurethane foam onto the first outer layer, bringing the lower side of a vacuum insulation panel into contact with the unhardened reaction mixture (R1), application of a reaction mixture (R2) for the production of a rigid polyurethane foam to the upper side of the vacuum insulation panel, bringing the second outer layer into contact with the layer of the unhardened reaction mixture (R2), and finally hardening of the two rigid polyurethane foam systems (R1) and (R2) to give the composite element. The present invention further relates to composite elements thus obtainable, and also to the use of a composite element of the invention or of a composite element obtainable by a process of the invention, as component for refrigeration equipment or as construction material.

Sandwich structure including a VIP and method for producing the same

Polyetheresters and their use in rigid polyurethane foams

The invention relates to rigid polyurethane foams which can be produced by reacting

Rigid polyurethane foams

The invention relates to a process for producing polyurethanes by reacting

Process for producing rigid polyurethane foams

The invention relates to a process for producing rigid polyurethane foams by reacting

Method for producing rigid polyurethane foams

Growing community of inventors

Stemwede-Oppendorf, Germany

Johann Klassen