C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/66 (2006.01) C08G 18/28 (2006.01)
Patent
CA 2226882
A process for preparing a homogeneous polyol component which is stable to separation and consists of at least one compound of relatively high molecular weight having at least two reactive hydrogen atoms and low-molecular-weight chain extenders and/or crosslinkers and, if desired, of blowing agents, catalysts and other auxiliaries and/or additives comprises the addition to this component of at least one amine and at least one organic and/or modified organic isocyanate; the invention also provides the corresponding polyol component which is stable to separation. The use of this polyol component for preparing PUR, in particular compact or foamed PUR, is also described.
Un procédé pour préparer un constituant polyolique homogène qui est stable à la séparation et qui consiste en au moins un composé de poids moléculaire relativement élevé portant au moins deux atomes d'hydrogène réactifs et d'allongeurs de chaîne et/ou d'agents de réticulation de faible poids moléculaire et, au besoin, d'agents gonflants, catalyseurs et autres auxiliaires et/ou additifs, comprend l'addition à ce constituant d'au moins une amine et d'au moins un isocyanate organique et/ou organique modifié; l'invention fournit également le constituant correspondant qui est stable à la séparation. L'utilisation de ce constituant polyolique pour préparer des polyuréthanes, en particulier des polyuréthanes compacts ou en mousse, est également décrite.
Falke Peter
Fritz Ralf
Hendreich Regina
Rotermund Inge
Basf Aktiengesellschaft
Falke Peter
Fritz Ralf
Hendreich Regina
Robic
LandOfFree
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