(19)
(11) EP 0 725 844 A1

(12)

(43) Date of publication:
14.08.1996 Bulletin 1996/33

(21) Application number: 94900395.0

(22) Date of filing: 26.10.1993
(51) International Patent Classification (IPC): 
C23C 22/ 78( . )
C23G 1/ 14( . )
C23C 22/ 80( . )
(86) International application number:
PCT/US1993/010243
(87) International publication number:
WO 1995/012011 (04.05.1995 Gazette 1995/19)
(84) Designated Contracting States:
AT BE DE ES FR GB NL PT SE

(71) Applicant: HENKEL CORPORATION
Plymouth Meeting, PA 19462 (US)

(72) Inventors:
  • KRAMER, Linda S.
    Troy, MI 48098 (US)
  • DUNN, Robin M.
    Royal Oak, MI 48067 (US)
  • GILES, Terrence R.
    Brighton, MI 48116 (US)
  • MILLER, Robert W.
    Clarkston, MI 48346 (US)

(74) Representative: Sanderson, Laurence Andrew 
SANDERSON & CO. European Patent Attorneys 34, East Stockwell Street
Colchester Essex CO1 1ST
Colchester Essex CO1 1ST (GB)

   


(54) A PROCESS FOR ACTIVATING A METAL SURFACE FOR CONVERSION COATING