Monomer recovery process for contaminated polymers

Details Monomer recovery process for contaminated polymers Monomer recovery process for contaminated polymers

C - Chemistry, Metallurgy

08

J

C08J 11/10 (2006.01) C07B 61/00 (2006.01) C07C 67/03 (2006.01) C07C 69/82 (2006.01) C07C 209/62 (2006.01) C07C 211/12 (2006.01) C07D 201/12 (2006.01) C07D 223/10 (2006.01) C08F 8/50 (2006.01)

Patent

CA 2257230

An improved process for recovering depolymerization products from polymers such as polyesters, polyamides, and polyesteramides, especially when the starting polymer content is less than about 98%. The depolymerization and vapor phase recovery of monomers and other reaction products are conducted in the presence of a solid support.

Cette invention concerne un procédé amélioré permettant de récupérer des produits de dépolymérisation qui sont issus de polymères tels que des polyesters, des polyamides et des polyesteramides, notamment lorsque le contenu de départ en polymère est inférieur à environ 98 %. La dépolymérisation ainsi que la récupération en phase vapeur des monomères et d'autres produits de réaction s'effectuent en présence d'un support solide.

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