ApplicationNo. 111889 filed on 10/23/1987
US Classes:264/48, Including surface treatment of porous body264/134, Coating or impregnating workpiece before molding or shaping step264/154, Making hole or aperture in article264/293, Deforming the surface only264/317Removing mold by destruction
ExaminersPrimary: Woo, Jay H.
Assistant: Durkin, II, Jeremiah F.
Attorney, Agent or Firm
International ClassB29C 041/02
AbstractA method of making a polymeric body having a porous surface by (a) applying a fluid polymeric composition to a mold surface of a leachable foam having open pores thereon, (b) curing the composition to form the polymeric body, and (c) leaching the foam from the polymeric body with a suitable solvent which does not dissolve the polymeric body. The method is especially suitable for making porous silicone elastomer bodies by using polystyrene foam as the mold material and the method is useful for forming hollow, porous-surfaced polymeric bodies, e.g. mammary and vascular prostheses.