Process for the preparation of retention and dewatering...

Details Process for the preparation of retention and dewatering... Process for the preparation of retention and dewatering...

C - Chemistry, Metallurgy

08

G

C08G 65/32 (2006.01) C08G 59/50 (2006.01) C08G 73/00 (2006.01) C08G 73/02 (2006.01) D21H 21/10 (2006.01) D21H 21/20 (2006.01) D21H 17/54 (2006.01)

Patent

CA 2206393

The present invention relates to a process for the preparation of branched and/or crosslinked polyamino-ethers in which polyamino-ethers, which are prepared from glycol dichlorohydrins or polyglycol dichlorohydrins and diamines and still contain free chlorohydrin groups, are crosslinked in an essentially aqueous solution under alkaline conditions under the influence of heat.

La présente invention concerne un procédé pour la préparation d'éthers polyaminés ramifiés et/ou réticulés dans lequel les éthers polyaminés, qui sont préparés à partir de dichlorhydrines du glycol ou de dichlorhydrines et de diamines du polyglycol et qui contiennent encore des groupes chlorhydrine libres, sont réticulés dans une solution essentiellement aqueuse dans des conditions alcalines sous l'effet de la chaleur.

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