Preparation of a homogeneous, demixing-stable polyol component

C - Chemistry – Metallurgy – 08 – G

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C08G 18/28 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01)

Patent

CA 2227156

A homogeneous, demixing-stable polyol component comprising at least two relatively high molecular weight compounds containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extenders and/or crosslinkers and also, if desired, blowing agents, catalysts and further auxiliaries and/or additives is prepared by adding at least one amine and at least one organic and/or modified organic isocyanate to this component. This polyol component is useful for producing polyurethanes, in particular compact and foamed polyurethanes.

Un constituant polyolique homogène stable à la séparation comprenant au moins deux composés de poids moléculaire relativement élevé contenant au moins deux atomes d'hydrogène réactifs et, au besoin, des allongeurs de chaîne et/ou des agents de réticulation de faible poids moléculaire et également, au besoin, des agents gonflants, catalyseurs et autres auxiliaires et/ou additifs, est préparé en ajoutant au moins une amine et au moins un isocyanate organique et/ou organique modifié à ce constituant. Ce constituant polyolique est utile pour produire des polyuréthanes, en particulier des polyuréthanes compacts et en mousse.

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