Reactive binding agent with an extended pot life

Details Reactive binding agent with an extended pot life Reactive binding agent with an extended pot life

C - Chemistry, Metallurgy

08

G

C08G 18/32 (2006.01) C08G 18/10 (2006.01) C08G 18/22 (2006.01) C08G 18/24 (2006.01) C08G 18/75 (2006.01) D06N 3/14 (2006.01)

Patent

CA 2341734

The invention relates to a reactive composition containing A) an isocyanate-containing compound, B) a polyol, C) an organic tin or bismuth compound, D) a thiol group-containing compound or a polyphenol which is able to react with an isocyanate group in the presence of a tertiary amine as activator and with adjacent hydroxyl groups and E) a hydrolyzable halogen compound, wherein the molar ration SH and/or OH:metal is 2 to 500 and the molar ratio halogen/metal is 0.05 to 10.

L'invention concerne des matières réactives (liants réactifs) à base de composés contenant des isocyanates et de polyols, à délai maximal d'utilisation prolongée à la température ambiante et à haute réactivité à température élevée. L'invention concerne également l'utilisation de ces matières pour le recouvrement de substrats de tout type, principalement de substrats flexibles tels que des textiles et le cuir, ou bien pour la mise en oeuvre d'un procédé de moulage réactif par injection.

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