Patent ID: 6911249
Filing Date: 2005-06-28
Classification: A61F,A61L,C09J,C23F,H05K,Y10S,Y10T

Abstract:
1. An irregular exterior surface portion integral to a substrate material which is particularly adapted to be joined to a second material, the surface portion to be so joined comprising a plurality of randomly sized and spaced protrusions having micro-features located upon said surface portion, produced by the method comprising the steps of: a) masking said surface portion of said substrate material in a random pattern with a maskant material, such that less than the entire surface portion is covered thereby; b) etching said surface portion such that said substrate material is removed thereby in areas uncovered by said maskant material, and areas covered by said maskant material are left intact; c) removing said maskant material; d) repeating said masking, etching and maskant removing steps upon said surface portion until a desired surface irregularity is achieved; e) blasting the etched surface portion with a blast media to create said micro-features that is dissolvable in a solvent, said blasting resulting in blast media particulate debris being affixed to said surface portion; and f) removing said blast media particulate debris affixed to said surface portion during said blasting step using said solvent without substantial deleterious effect upon said substrate material.