Production of articles or coatings by electrodeposition

• US 3,092,558 A
• Filed: 10/14/1958
• Issued: 06/04/1963
• Est. Priority Date: 10/15/1957
• Status: Expired due to Term

• Current Assignee: Herbert D. Hughes, Richard W. Lewis
• Original Assignee: Herbert D. Hughes, Richard W. Lewis
• Inventors: Hughes, Herbert D., Lewis, Richard W.
• Application Number:
  US03/767,199
• Time in Patent Office: 1,694 Days
• US Class Current: 205/67
• CPC Class Codes: C25D 1/00 Electroforming
• CPC Class Codes: C25D 1/04 Wires; Strips; Foils

Claims

7. A METHOD OF ELECTROFORMING A SHAPED NICKEL ARTICLE WHICH COMPRISES:

(A) CONTIGUOUSLY COVERING A FACE OF A CONDUCTIVE MANDREL WITH A FOIL OF POLYISOBUTYLENE LOADED WITH GRAPHITE PARTICLES AND PREPARED BY ROLLING GRAPHITE-LOADED POLYISOBUTYLENE IN A MANNER TO ORIENT THE GRAINS OF SAID GRAPHITE, SAID GRAPHITE PARTICLES HAVING A GRAIN SIZE OF 0.1 TO 25 MICRONS;

(B) MAKING THE FOIL-COVERED MANDREL FACE THE CATHODE IN A NICKEL PLATING BATH UNTIL A SELF-SUPPORTING LAYER OF NICKEL IS DEPOSITED THEREON;

AND C) SEPARATING SAID SELF-SUPPORTING LAYER FROM SAID FOIL COVERED MANDREL FACE.