Anti-bacterial covalently bonded coating

摘要

Preparation is claimed of covalently bonded surface coatings (C) which reject bacteria. The process comprises forming a polymer coating by UV induced grafting onto an activated substrate surface. The polymer contains (a) at least one monomer of formula R(A)a (I); and (b) at least one monomer with a UV-sensitive group. A = COOH, SO3H, OSO3H, OPO(OH)2, PO(OH)2, OP(OH)2, phenolic hydroxyl or salts or esters of these; R = mono- or di-unsaturated olefin residue, preferably hydrocarbon; R<1> = H, metal ion equivalent or organic residue; and a = 1 - 3. Also claimed are articles with a coating as above.