Toluene diisocyanate residue-based compositions as fillers...

Details Toluene diisocyanate residue-based compositions as fillers... Toluene diisocyanate residue-based compositions as fillers...

C - Chemistry, Metallurgy

08

G

C08G 18/76 (2006.01) C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 18/70 (2006.01) C08G 18/72 (2006.01) C08G 18/80 (2006.01) C08K 5/29 (2006.01)

Patent

CA 2223470

TDI residue-based urethane-filled isocyanate compositions are produced by reacting a TDI residue satisfying specified criteria with a monofunctional alcohol in amounts such that the equivalent ratio of isocyanate groups to hydroxyl groups is from about 0.9:1 to about 1:0.9. This reaction product is then dissolved in a diisocyanate or polyisocyanate. These TDI residue-based urethane-filled isocyanate compositions are particularly useful in the production of polyurethanes.

On produit des préparations d'isocyanate contenant un uréthane à base d'un résidu de TDI en faisant réagir un résidu de TDI satisfaisant à des critères bien précis avec un alcool monofonctionnel en quantités telles que le rapport équivalent groupes isocyanate/groupes hydroxyle est compris entre environ 0,9/1 et environ 1/0,9. Ce produit de réaction est ensuite dissous dans un diisocyanate ou un polyisocyanate. Ces préparations d'isocyanate contenant un uréthane à base d'un résidu TDI sont particulièrement utiles dans la production de polyuréthanes.

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