Compatibilising agents

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 271/22 (2006.01) C08G 18/08 (2006.01) C08G 18/22 (2006.01) C08G 18/70 (2006.01) C08G 18/80 (2006.01) C08L 97/02 (2006.01)

Patent

CA 2172072

Compatibilising agent being the reaction product of an organic mono- or polyfunctional isocyanate and a compound corresponding to general formula (I), wherein Y1 and Y2 (same or different) represent O or S; n and n' (same or different) represent an integer of from 0 to 1, R and R' (same or different) represent an aliphatic hydrocarbon radical containing from 1 to 30 carbon atoms and wherein the sum of the total number of carbon atoms of R and R' is between 7 and 40, and its use for improving the release performance of metal carboxylate containing polyisocyanate compositions for woodbinding.

Cette invention concerne un agent de compatibilité qui est le produit de réaction d'un isocyanate organique monofonctionnel ou polyfonctionnel et d'un composé correspondant à la formule (I). Dans cette formule Y¿1? et Y¿2? (qui peuvent être identiques ou différents) représentent O ou S; n et n' (qui peuvent être identiques ou différents) représentent un entier tel que 0 ou 1; R et R' (qui peuvent être identiques ou différents) représentent un radical hydrocarbure aliphatique contenant entre 1 et 30 atomes de carbone, la somme du nombre total d'atomes de carbone de R et R' se situant entre 7 et 40. Cet agent de compatibilité est utilisé pour améliorer les caractéristiques de libération de compositions au polyisocyanate contenant du carboxylate métallique utilisées pour lier le bois.

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