Method for producing copolymers by radical polymerisation

Details Method for producing copolymers by radical polymerisation Method for producing copolymers by radical polymerisation

C - Chemistry, Metallurgy

08

F

C08F 226/02 (2006.01) C08F 226/06 (2006.01) E21B 37/06 (2006.01)

Patent

CA 2342323

The invention relates to a method for producing copolymers by radical polymerisation of a) 5 to 95 wt. % of a monomer of formula (I), b) 95 to 5 wt. % of a monomer of formula (II), wherein R1 and R2 represent H, C1-C3-alkyl, R3 = H, C1-c6-alkyl and n = 1 to 3 respectively and c) 0 to 40 wt. % of another fully or partially water-soluble monomer. The inventive method is characterised in that the polymerisation is carried out in an aqueous medium.

L'invention concerne un procédé de production de copolymères par polymérisation radicale de a) 5 à 95 % en poids d'un monomère de la formule (I), b) 95 à 5 % en poids d'un monomère de la formule (II), ou respectivement R?1¿ et R?2¿ représentent H, C¿1?-C¿3?-alkyle, R?3¿ représente H, C¿1??-c¿¿6?-alkyle et n vaut 1 à 3, et c) 0 à 40 % en poids d'un autre monomère entièrement ou partiellement soluble dans l'eau. Ce procédé est caractérisé en ce que la polymérisation est effectuée dans un milieu aqueux.

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