Patent 7476325 was granted and assigned to E.I. Du Pont De Nemours And Company on January, 2009 by the United States Patent and Trademark Office.
An oxidizing agent comprising a pre-measured amount of stabilized potassium hydrogen peroxymonosulfate and a buffer in a sealed water-soluble pouch, said pouch comprising a hydrolyzed copolymer of vinyl acetate and at least one of acrylic acid, methacrylic acid, maleic acid, itaconic acid, and esters thereof is disclosed.