Process for producing modified, impact-resistant polyamides

Details Process for producing modified, impact-resistant polyamides Process for producing modified, impact-resistant polyamides

C - Chemistry, Metallurgy

08

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C08G 69/18 (2006.01) C08G 65/48 (2006.01) C08G 69/48 (2006.01) C08K 5/29 (2006.01)

Patent

CA 1326729

Abstract A process for producing modified, impact-resistant polyamides showing an increased polymerization rate is reported, which consists in polymerizing an .omega.-lactam in the presence of: a) a mixture of an organic di-isocyanate and an organic mono-isocyanate, the isocyanate groups of both of which are blocked with an .omega.-lactam; b) a poly-oxy-alkylene-amine having an aminic functionality lower than 3, and c) an alkaline catalyst.

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