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1. (WO2017037011) INTERPENETRATING POLYMER NETWORK CONTAINING CROSS-LINKED POLY(N-VINYLAMINE)

Pub. No.:    WO/2017/037011    International Application No.:    PCT/EP2016/070303
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Aug 30 01:59:59 CEST 2016
IPC: D21H 21/10
Applicants: KEMIRA OYJ
Inventors: LEGRAND, Sacha
POLVERARI, Marco
Title: INTERPENETRATING POLYMER NETWORK CONTAINING CROSS-LINKED POLY(N-VINYLAMINE)
Abstract:
The invention relates to an interpenetrating polymer network (IPN) that comprises two polymers which are at least partially interlaced on a molecular scale, wherein the first polymer is obtainable by hydrolyzing a cross-linked poly(N-vinylformamide), and the second polymer is a copolymer of monomers A and B. The monomer A is preferably cationic, such as dimethylaminoethylacrylate methyl chloride, and the monomer B may be for example acrylamide. The IPN material of the present invention may be used in paper making processes as drainage agent, retention agent, sizing agent or flocculant agent.