Process for preparing compounds containing isocyanuric...

C - Chemistry – Metallurgy – 07 – D

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260/248.7

C07D 251/34 (2006.01) C08G 18/02 (2006.01)

Patent

CA 1183843

PRECIS DE LA DIVULGATION: La présente invention concerne un procédé d'obtention de composés à groupements isocyanuriques monomères ou polymères par cyclotrimérisation cata- lytique d'isocyanate. Elle est caractérisée en ce que l'on utilise à titre de composé initiant la réaction un composé à groupement aminosilylé choisi parmi les monoaminosilanes, les diaminosilanes, les silylurées ou les silazanes. Ce système catalytique est très efficace pour cyclotrimériser les isocyanates aliphatiques, cycloaliphatiques et permet d'obtenir en particulier des polyisocyanates polyisocyanurates.

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