Patent ID: 9271494
Filing Date: 2016-03-01
CPC Classification: A01N,A61L

Claim Text:
1. A shelf stable peroxycarboxylic acid composition comprising: (a) about 0.005 wt-% to about 0.2 wt-% of a C (b) about 1 wt-% to about 5 wt-% hydrogen peroxide; (c) about 0.01 wt-% to about 0.3 wt-% of a protonated C (d) about 0.5 wt-% to about 3.5 wt-% of a protonated C (e) about 0.01 wt-% to about 2 wt-% buffer; (f) about 70 wt-% to about 99 wt-% water; (g) about 0.01 wt-% to about 5 wt-% nonionic surfactant; (h) about 0.01 to about 3 wt-% sequestrant comprising a phosphonic acid, phosphonate salt, or combinations of the same; and (i) about 0.01 wt-% to about 0.25 wt-% triazole corrosion inhibitor; wherein: the composition is free of added mineral acid; the pH of the composition is about 1 to about 4; the ratio of hydrogen peroxide:peroxycarboxylic acid in the composition is about 30:1 to about 60:1; the ratio of hydrogen peroxide:protonated carboxylic acid in the composition is about 1:1 to about 2:1; and wherein the composition is stable such that greater than 85% of the initial concentration of peroxycarboxylic acid remains after 1 year of storage at room temperature.