Clear polyurethane coatings with excellent virucidal properties: Preparation, characterization and rapid inactivation of human coronaviruses 229E and SARS-CoV-2

•Surface and bulk modification of polyurethane coatings with N-halamine group, maintaining their physical properties.•Full rechargeability of the active group for at least five cycles.•Stability in dark and in water media for, at least, seven days.•Rapid inactivation of HCoV-229E virus after 30min contact time, and of SARS-CoV-2 virus after 12hr contact time.•Virucidal activity retained after, at least, three cycles of reinfection without reactivation of the virucidal group.