Patent ID: 7348055
Filing Date: 2008-03-25
Classification: A61L,B82Y,C09D,Y10S,Y10T

Abstract:
1. A porous support surface bearing a polymeric coating prepared according to a method comprising the steps of: a) providing a porous support surface; b) providing a nonpolymeric grafting reagent comprising at least two photoinitiator groups, the grafting reagent having one or more substituents comprising positively charged groups; c) providing at least one polymerizable monomer solution to be contacted with the surface, in the presence of the grafting reagent, and to be polymerized upon activation of the photoinitiator; and d) applying the grafting reagent and monomer solution to the surface to coat the surface with the grafting reagent and to cause the polymerization of monomers to the surface upon activation of the grafting reagent, wherein the polymeric coating is covalently attached to the surface by the residues of one or more photoinitiator groups provided by the grafting reagent and the polymeric coating is less than about 100 nanometers in thickness.