Low amidine content polyvinylamine, compositions containing...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/12 (2006.01)

Patent

CA 2728294

Low amidine content poly(N-vinylformamide-covinylamine) (PVAm), is described, as well as processes of making and providing same in fresh or aged formats, and the usage of such polymer to increase papermaking retention and drainage rate and enhance paper dry strength, and other applications.

L'invention concerne une poly(N-vinylformamide-co-vinylamine) (PVAm) à faible teneur en amidine, ainsi que des processus de fabrication et de fourniture de ce produit sous forme fraîche ou vieillie, et l'utilisation de ce polymère afin d'accroître le taux de rétention et de drainage pour la fabrication de papier et afin d'améliorer la force à létat sec d'un papier, et d'autres applications.

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