Fritz Nauer Ag

Johan Frei

Henri Mispreuve

Reinold Naescher

Kurt Schoenenberger

Erik Vogel

Zacharias Grote

Polymer-modified polyol, for use as a starting material for polyurethane foam, is made by reacting an olamine, such as triethanolamine, with an isocyanate in the presence of a metal organic catalyst. The catalyst is a metal salt of an organic acid and the viscosity of the polymer-modified polyol is at least 2250 mPa&#xb7;s. In one embodiment the catalyst is of the formulat M(O.CO.R.CH)where M is a metal and R is a carbon chain of 6 to 20 carbons. A metal salt of a monohydroxy fatty acid, particularly ricinoleic acid may be used.

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Jona, Switzerland

Johan Frei