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AssigneeAfira IPR B.V.
InventorsJohannes Petrus Aldegonda Custers, Leonard Franciscus Sophia Stemkens, Dirk Theodorus Andreas van Asseldonk
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The present invention relates to an ampholytic polymeric system obtainable by a process comprising the copolymerization of (i) a monomer according to Formula (1), (ii) an ethylenically unsaturated cationic monomer and (iii) a (co)polymer comprising an ethylenically unsaturated anionic monomer which comprises a sulfonate group: (1) wherein X is O or NR2, R1 and R2 are independently selected from the group consisting of hydrogen and C1-C6 alkyl groups or wherein R1 and R2 form together a (CR1R2)n- chain, wherein n is 3 to 12, and wherein R3 is independently selected from the group consisting of hydrogen and CH3. The present invention further relates to the use of ampholytic polymeric system in separation processes.
An ampholytic polymeric system obtainable by copolymerizing (i) a monomer according to Formula (1) and (ii) an ethylenically unsaturated cationic monomer in the presence of (iii) a (co)polymer comprising an ethylenically unsaturated anionic monomer comprising a sulfonate group:
A process for the preparation of an ampholytic polymeric system, comprising copolymerizing (i) a monomer according to Formula (1) and (ii) an ethylenically unsaturated cationic monomer in the presence of (iii) a (co)polymer comprising an ethylenically unsaturated anionic monomer comprising a sulfonate group:
Dependencies are inferred from the claim text.