Patent ID: 6022902
Filing Date: 2000-02-08
Classification: A61L,B01D,B01J,B29C,B29K,B29L,C08J,C12N,C12P,G01N,Y10T

Abstract:
A porous article having an exterior surface, a bulk matrix and pores extending from the exterior surface into the bulk matrix, wherein the pores define an interstitial surface, wherein the bulk matrix is formed, at least in part, of an organic polymer comprising carbon and hydrogen atoms, and the exterior and interstitial surfaces are formed, at least in part, of the organic polymer comprising carbon and hydrogen atoms wherein some of the hydrogen atoms are replaced with functional groups selected from amino, hydroxyl, carbonyl, and carboxylic acid, wherein the functional groups are directly bonded to the organic polymer of the bulk matrix, and wherein the exterior surface does not display appreciable surface roughness, according to SEM analysis, due to ablation of surface carbon atoms or chain scission.