Process for treating a polymer-containing material by...

C - Chemistry – Metallurgy – 07 – C

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C07C 55/02 (2006.01) C07C 51/06 (2006.01)

Patent

CA 2151392

Process for the treatment of a material comprising a polymer, especially a polyamide. The process consists in subjecting the polyamide to hydrolysis in the presence of a hydrolyzing nitrous grouping and transforming the hydrolyzed compounds into diacids. The treatment of a polyamide 6.6 results in the recovery of adipic acid and other diacids corresponding to the participating acid monomer and to the transformation of at least one part of the diamine monomer into diacids.

La présente invention concerne un procédé de traitement d'un matériau comprenant un polymère, notamment un polyamide. Ce procédé consiste à faire une hydrolyze en présence de groupements nitreux pour hydrolyser le polyamide et transformer les composés hydrolysés en diacides. Ainsi, par traîtement d'un polyamide 6.6 on récupère l'acide adipique et d'autres diacides correspondant au monomère acide engagé et à la transformation d'au moins une partie du monomère diamine en diacides.

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