Process for the preparation of polymers having recurring...

Details Process for the preparation of polymers having recurring... Process for the preparation of polymers having recurring...

C - Chemistry, Metallurgy

08

G

C08G 73/12 (2006.01) C02F 5/12 (2006.01) C08G 73/10 (2006.01)

Patent

CA 2195931

Polymers having recurring succinyl units are obtained by an improved process by reaction of A, an unsaturated C4-dicarboxylic acid or a derivative thereof, with B, a nitrogen-donating compound, in a first reaction step to give a reaction mixture comprising at least one low molecular weight reaction product, and subsequent continuous feeding of the reaction mixture into a continuously operated reactor to give the polymer in a second reaction step.

es polymères à mailles succinyl sont obtenus par un procédé amélioré, soit en faisant réagir A, un acide dicarboxylique en C4 non saturé ou un de ses dérivés, avec B, un composé donneur d'azote, dans une première étape de réaction donnant un mélange réactif comprenant au moins un produit de réaction à faible masse moléculaire; le produit de réaction est versé en continu dans un réacteur fonctionnant aussi en continu, pour donner le polymère dans une deuxième étape.

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