Super-absorbing polymeric networks

Details Super-absorbing polymeric networks Super-absorbing polymeric networks

C - Chemistry, Metallurgy

07

D

C07D 243/00 (2006.01) C08G 73/10 (2006.01) C08J 9/28 (2006.01) C08J 9/36 (2006.01)

Patent

CA 2318764

Super-absorbing polymeric networks of cross-linked polyaspartates are produced from cross-linked polysuccinimide. Super-absorbing polymeric networks are produced in a single reaction vessel by cross-linking polysuccinimide with at least one organic polyamine cross-linking agent in the presence of at least one nitrogenous base. The reaction is carried out in an aqueous reaction mixture to produce a polymeric network of cross-linked polyaspartate.

L'invention concerne des réseaux polymères ultra-absorbants de polyaspartates réticulés, obtenus à partir d'un polysuccinimide réticulé. Lesdits réseaux sont élaborés dans une cuve à réaction unique, par réticulation du polysuccinimide avec au moins un agent de réticulation à polyamine organique en présence d'au moins une base azotée. La réaction est conduite dans un mélange réactif aqueux, de manière à produire un réseau polymère de polyaspartates réticulés.

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