Patent ID: 8648127

Claim:
A self decontaminating solvent based coating comprising: a solvent based polyurethane component having a dried porosity in a range of about 10 volume percent to about 60 volume percent; a chemical active incorporated into the solvent based polyurethane component, the chemical active selected from the group consisting of N-halamines, organophosphorus hydrolase enzymes, and haloalkane dehalogenase enzymes; and, a biological active incorporated into the solvent based polyurethane component, the biological active selected from the group consisting of silane quaternary ammonium compounds, ammonium containing polymers, inorganic silver and zinc ion containing zeolites, and inorganic silver and zinc ion containing glasses, wherein the dried porosity allows for percolation space of a chemical agent to move in the coating to the chemical active that acts against the chemical agent, and allows for a biological agent to move in the coating to the biological active that acts against the biological agent, such that the chemical and biological actives remove without use of an external decontamination material the respective chemical and biological agents after exposure of the coating to the respective chemical and biological agents, and further wherein the chemical active and the biological active are dispersed throughout the solvent based polyurethane component of the coating.