Basf Aktiengesellschaft

Basf Se Corporation

Marion Heinz

Udo Rotermund

Werner Wiegmann

Anja Biedermann

Renate Hempel

Michael Reichelt

Peter Huntemann

Udo Schilling

The invention relates to isocyanate adducts which can be prepared by reacting at least one polyisocyanate with compounds having at least two hydrogen atoms which are reactive toward isocyanate groups and have a crystalline content of less than 10 J/g determined by differential scanning calorimetry in accordance with DIN 51 004 at 20 K/min from room temperature to 250&#xb0; C. using a nitrogen flow of 3 l/h as carrier gas and an aromatics content reported as carbon atoms in aromatic rings of less than 31% by weight, based on the total weight of the isocyanate adducts.

Isocyanate adducts

Storage-stable, blowing agent-containing emulsions for producing rigid foams based on isocyanate

Blowing agent-containing emulsions comprise

Storage-stable emulsions for producing fine-celled rigid foams based on

In a process for producing open-celled rigid foams by reacting a) polyisocyanates with b) compounds containing hydrogen atoms which are reactive toward isocyanates, in the presence of c) water, d) if desired, organic compounds acting as physical blowing agents, e) catalysts, auxiliaries and/or additives, the compounds containing reactive hydrogen atoms used are substances having the structure I: ##STR1## where m is 0-15

Open-celled rigid foams based on isocyanate

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Bernsdorf, Germany

Marion Heinz