Depolymerization of polyamides

Details Depolymerization of polyamides Depolymerization of polyamides

C - Chemistry, Metallurgy

07

D

C07D 223/10 (2006.01) C07C 51/06 (2006.01) C07C 55/14 (2006.01) C07C 209/62 (2006.01) C07C 211/12 (2006.01) C07D 201/12 (2006.01) C08J 11/10 (2006.01)

Patent

CA 2236116

Process for the depolymerization of one or more polyamides into its monomeric components in the presence of water by means of an alkali (alkaline-earth) metal compound, the depolymerization taking place at a pressure of between 0.2 and 2.0 MPa, so that high conversions are achieved and the depolymerization reaction proceeds faster, even in the presence of high contents of cyclic oligomers.

Méthode pour la dépolymérisation d'un ou de plusieurs polyamides en ses constituants monomères en présence d'eau, à l'aide d'un composé de métal alcalin (alcalino-terreux); la dépolymérisation a lieu à une pression comprise entre 0,2 et 2,0 Mpa, ce qui permet d'obtenir un taux élevé de conversion et d'accélérer la réaction de dépolymérisation, même en présence de fortes concentrations d'oligomères cycliques.

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