Patent ID: 7645419
Filing Date: 2010-01-12
Classification: A01N,A61L,C02F,Y10S

Abstract:
1. A method of killing microorganisms in aqueous systems or products based on water comprising adding a biocide to the system or product, wherein the biocide comprises from 0.001 to 5% by weight of at least one water-soluble or water-dispersible polymer comprising (a) from 30 to 98 mol % of styrenesulfonic acid, (b) from 2 to 40 mol % of an N-vinyllactam, and (c) from 0 to 30 mol % of free-radically polymerizable monomers, wherein the mol % is based on the total molar amount of monomer units present in the polymer, and the sum of (a), (b), and (c) totals 100 mol %.