B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 69/02 (2006.01) B01D 67/00 (2006.01) B01D 71/40 (2006.01) B01D 71/44 (2006.01) B01D 71/62 (2006.01) B01D 71/68 (2006.01) B01D 71/80 (2006.01) C08F 226/06 (2006.01) C08F 226/10 (2006.01)
Patent
CA 2481435
The invention relates to the use of A copolymers containing a) 50 to 99 percent by weight of at least one N-vinyl lactam or N-vinyl amine, selected among the group comprising N-vinyl pyrrolidone, N-vinyl piperidone, N-vinyl caprolactam, N-vinyl imidazole, methylized N-vinyl imidazole, and N-vinyl formamide, and b) 1 to 50 percent by weight of at least one monomer, selected among one of the groups comprising b1) C8-C30 alkyl ester of monoethylenically unsaturated C3-C8 carboxylic acids; b2) N-C8-C30 alkyl-substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids; b3) N,N-C8-C30 dialkyl- substituted amides of monoethylenically unsaturated C3-C8 carboxylic acids; b4) vinyl ester of aliphatic C8-C30 carboxylic acids; b5) C8-C30 alkyl vinyl ether, for the production of membranes.
La présente invention concerne des copolymères A, contenant a) 50 à 99 % en poids d'au moins un N-vinyllactame ou un N-vinylamine sélectionné dans le groupe des N-vinylpyrrolidone, N-vinylpipéridone, N-vinylcaprolactame, N-vinylimidazole, N-vinylimidazole et N-vinylformamide méthylés et b) 1 à 50 % en poids d'au moins un monomère sélectionné dans le groupe b1) des esters d'alkyle C¿8?-C¿30? d'acides carboxyliques C¿3?-C¿8? monoéthyléniques insaturés; b2) d'amides, substitués par N-C¿8?-C¿30?-Alkyle, d'acides carboxyliques C¿3?-C¿8 ?monoéthyléniquement insaturés; - b3) amides substitués par N,N-C¿8?-C¿30?-dialkyle d'acides carboxyliques C¿3?-C¿8 ?monoéthyléniquement insaturés; b4) d'esters vinyliques d'acides carboxyliques C¿8?-C¿3? aliphatiques; b5) d'éthers C¿8?-C¿30?-alkylvinyliques. L'invention concerne également l'utilisation de ces copolymères pour la production de membranes.
Dietsche Frank
Neubecker Karin
Sanner Axel
Schneider Tanja
Stein Stefan
Basf Aktiengesellschaft
Robic
LandOfFree
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