| abstract |
Tannin containing polymers, their method of production and methods as using water treatment agents are disclosed. The tannin containing polymers comprise a water soluble or dispersible tannin containing polymer having the formula: Tannin - [N-C-A] wherein N is a nonionic monomer, C is a cationic monomer and A is an anionic monomer, and the mole percentage of N is from 0 to 60%, the mole percentage of C is from 30 to 100% and the mole percentage of A is from 0 to 30% provided the total mole percentage in the polymer is 100%. |