Bismuth-catalyzed polyurethane composition

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 18/12 (2006.01) B01J 31/18 (2006.01) C08G 18/22 (2006.01) C08G 18/30 (2006.01) C08G 18/48 (2006.01) C09D 175/04 (2006.01) C09J 175/04 (2006.01)

Patent

CA 2501224

The invention relates to a single-component polyurethane composition comprising at least one polyurethane prepolymer which is provided with terminal isocyanate groups and is made of at least one polyisocyanate and at least one polyol, and at least one catalyst system that is obtained from at least one bismuth compound and at least one aromatic nitrogen compound. The invention also relates to a use of said polyurethane composition as an adhesive, sealant, coating, or lining. Further disclosed are catalysts for polyurethane compositions, which represent coordination compounds between bismuth and at least one aromatic nitrogen compound.

La présente invention concerne une composition de polyuréthanne à un composant, comprenant au moins un prépolymère de polyuréthanne qui présente des groupes terminaux isocyanate et qui est produit à partir d'au moins un polyisocyanate et d'au moins un polyol, ainsi qu'au moins un système catalyseur qui est obtenu à partir d'au moins un composé de bismuth et d'au moins un composé d'azote aromatique. La présente invention concerne également l'utilisation de cette composition de polyuréthanne en tant qu'adhésif, matériau d'étanchéité, revêtement ou garniture. En outre, cette invention concerne des catalyseurs pour compositions de polyuréthanne, qui constituent des composés de coordination entre le bismuth et au moins un composé d'azote aromatique.

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