Microbicide combinations containing silver

摘要

A synergistic microbicidal composition. The composition comprises a silver-containing copolymer comprising polymerized units of a monomer X and a monomer Y; wherein monomer X is an ethylenically unsaturated compound having a substituent group selected from an unsaturated or aromatic heterocyclic group having at least one hetero atom selected from N, O and S; wherein monomer Y is selected from carboxylic acids, carboxylic acid salts, carboxylic acid esters, organosulfuric acids, organosulfuric acid salts, sulfonic acids, sulfonic acid salts, phosphonic acids, phosphonic acid salts, vinyl esters, (meth)acrylamides, C8-C20 aromatic monomers containing at least one exocyclic ethylenic unsaturation and combinations thereof; and at least one organic biocide.

主权项

1. A synergistic microbicidal composition; said composition comprising:
(a) a silver-containing copolymer comprising polymerized units of a monomer X and a monomer Y;wherein the copolymer comprises 5 wt % to 11.5 wt % silver, based on total copolymer weight; and wherein monomer X is N-vinylimidazole and monomer Y comprises at least one C2-C8 alkyl (meth)acrylate; and
(b) C12-C16 alkyl dimethylbenzylammonium chloride, C9-C15 alkyltolylmethyl trimethylammonium chloride, hydrogen peroxide, or a combination thereof; wherein a weight ratio of silver to C12-C16 alkyl dimethylbenzylammonium chloride is from 1:19.6 to 1:980, a weight ratio of silver to C9-C15 alkyltolylmethyltrimethylammonium chloride is from 1:39.2 to 1:1152 and a weight ratio of hydrogen peroxide to silver is from 1:0.000005 to 1:0.000121.