Amphoteric polyelectrolyte

C - Chemistry – Metallurgy – 08 – F

Patent

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402/403, 402/410

C08F 220/02 (2006.01) A61K 8/81 (2006.01) A61Q 5/06 (2006.01) C08F 220/06 (2006.01) C08F 220/34 (2006.01) C08F 220/56 (2006.01) D21H 17/43 (2006.01) D21H 17/45 (2006.01)

Patent

CA 1111995

AMPHOTERIC POLYELECTROLYTE Abstract of the Disclosure: An amphoteric polyelectrolyte which is useful as a paper additive capable of imparting dry strength to paper, a high molecular flocculant, a high molecular de- hydrating agent or the like and can be prepared by copoly- merizing a cationic vinyl monomer such as .beta.-methacryloxy- ethyl trimethylammonium chloride, an anionic vinyl monomer such as acrylic acid and a vinyl monomer such as acrylamide, optionally with a nonionic vinyl monomer such as acrylo- nitrile, in a solvent in the presence of a catalyst. -1-

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