Patent ID: 7261938
Filing Date: 2007-08-28
Classification: B05D,C08G,C08J,Y10T

Abstract:
1. A surface modified substrate comprising; a substrate defining a surface wherein the substrate is formed from a substrate material; and a cross-linked polymeric anchoring layer bonded directly to the substrate material at the substrate surface, wherein the anchoring layer comprises polymers having a number average molecular weight of at least about 2000 bound directly to the substrate material at the substrate surface at multiple points along each polymer, wherein said polymers are bound directly to the substrate material via epoxy groups of the polymers, wherein said polymers are cross-linked at multiple points along the length of each polymer, wherein at least a portion of said cross-links comprises the residue of an epoxy group of the polymer, the anchoring layer further comprising at least one of reactive epoxy groups and a second material bound to the anchoring layer via epoxy groups of the polymers, wherein the anchoring layer has a graft density on the substrate surface of at least about 0.3 chains per square nanometer.