US Patent 7160846 Aqueous concentrate for the disinfection of surfaces

The invention relates to the field of cleaning and disinfection of hard surfaces. The cleaning and disinfection of the surfaces is achieved by means of a deaning textile and an aqueous preparation, comprising disinfection agents and additives selected from a group comprising a quatemary ammonium compound of formula (II), polydialkyldiallylammonium salts and derivatives thereof and the copolymers of dialkyldiallylammonium salts with acrylamide, and/or acrylic acid, and/or vinyl acetate, and derivatives thereof. The invention further relates to an aqueous concentrate, an aqueous preparation produced therefrom and a method for the reduction of active ingredient losses in disinfection solutions when using said concentrate.