Patent ID: 6986429

Claim:
A porous antimicrobial component formed of a polymer material grafted at its surface and in its bulk with ammonium units, said ammonium units having at least one of antimicrobial activity, bactericidal activity and fungicidal activity, said polymer material derived from a polymer comprising units of formula (I) —[CH 2 —CH(Ar)] (I) in which Ar represents a chain of formula: -Ph-CH 2 —N ⊕ (CH 3 ) 2 R,X ⊖tm (II) or -Ph-CH 2 —X (III) in which: R represents a C 2 –C 15 alkyl, Ph is a phenyl unit, and the ion X − is a pharmaceutically acceptable anion, with chains of formula II being present in an amount that is sufficient to give said material antimicrobial properties, and wherein the polymer is a polystyrene partially grafted with dimethyltetradecylamine units.