C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/10 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C09J 175/02 (2006.01)
Patent
CA 2493600
The invention relates to compositions containing at least one polyurethane prepolymer A which has isocyanate end groups and is produced from at least one polyisocyanate and at least one polyol, and at least one polyaldimine B which can be obtained from at least one polyamine C having aliphatic primary amino groups and at least one aldehyde D. The invention also relates to the production of said compositions, and to the production of the polyaldimine. Disclosed is also the use of said compositions as an adhesive, a sealant, a coating or a lining. The invention further relates to methods for gluing, sealing or coating, and to articles having a surface which has been at least partially brought into contact with one such composition. Said compositions have a significant advantage in that they are odourless before during and after the hardening thereof.
La présente invention concerne des compositions contenant au moins un prépolymère de polyuréthanne A à groupes terminaux isocyanate, obtenu à partir d'au moins un polyisocyanate et d'au moins un polyol, ainsi qu'au moins une polyaldimine B, obtenue à partir d'au moins une polyamine C à groupes amino primaires aliphatiques et d'au moins un aldéhyde D. Ladite invention concerne également la production de ces compositions, la production de ladite polyaldimine, l'utilisation de ces compositions comme substance adhésive, substance d'étanchéité, revêtement ou garniture ainsi que des procédés de collage, d'étanchement ou d'enduction. Cette invention concerne enfin des articles dont la surface est au moins partiellement mise en contact avec une composition de ce type, le principal avantage de ces compositions étant l'absence d'odeur avant, pendant et après le durcissement desdites compositions.
Gowling Lafleur Henderson Llp
Sika Technology Ag
LandOfFree
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