Preparation of a stable dispersion of melamine in polyol...

C - Chemistry – Metallurgy – 08 – G

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C08G 18/38 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/66 (2006.01) C08J 9/04 (2006.01) C08K 5/3492 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2216971

A stable dispersion of melamine in polyol components comprising at least one relatively high molecular weight compound containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extenders and/or crosslinkers, blowing agents, catalysts, flame retardants and also further auxiliaries and/or additives is prepared by using the melamine in combination with at least one amine and at least one organic and/or modified organic isocyanate. Such a dispersion can be used for producing flame-resistant polyurethane foams.

Une dispersion stable de mélamine dans des constituants polyoliques comprenant au moins un composé de poids moléculaire relativement élevé portant au moins deux atomes d'hydrogène réactifs et, si on le désire, des allongeurs de chaîne de faible poids moléculaire et/ou des réticulants, des agents gonflants, des catalyseurs, des agents ignifuges et d'autres auxiliaires et/ou additifs, est préparée par utilisation de la mélamine en combinaison avec au moins une amine et au moins un isocyanate organique et/ou organique modifié. Une telle dispersion peut être utilisée pour produire des mousses de polyuréthane ininflammables.

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