Use of copolymers containing n-vinyl lactam for producing...

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B01D 71/38 (2006.01) C08F 222/02 (2006.01)

Patent

CA 2537362

The invention relates to the use of copolymers containing: a) 60 to 99 % by weight of at least one vinyl lactam or N-vinyl amine, selected from the group consisting of N-vinyl pyrrolidone, N-vinyl piperidone, N-vinyl caprolactam or N-vinyl formamide, and; b) 1 to 40 % by weight of at least one monomer of general formula (I).

L'invention concerne l'utilisation de copolymères contenant : a) entre 60 et 99 % en poids d'au moins un vinyllactame ou d'une N-vinylamine, sélectionné dans le groupe comprenant : N-vinylpyrrolidone, N-vinylpipéridone, N-vinylcaprolactame ou N-vinylformamide et b) entre 1 et 40 % en poids d'au moins un monomère de formule générale (I).

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