(19)

(11)

EP 0 837 954 A1

(12)

(43) Date of publication: 29.04.1998 Bulletin 1998/18 (21) Application number: 96924286.0 (22) Date of filing: 25.06.1996

(51) International Patent Classification (IPC):  C23C 22/ 36( . ) C23C 22/ 44( . ) (86) International application number: PCT/US1996/010683 (87) International publication number: WO 1997/002369 (23.01.1997 Gazette 1997/05)

(84) Designated Contracting States: AT DE ES FR GB IT NL (30) Priority: 30.06.1995 JP 19950166243 (71) Applicant: HENKEL CORPORATION Plymouth Meeting, PA 19462 (US)	(72) Inventors: WADA, Hiroyuki-Nihon Parkerizing Ohgami Dormitory Kanagawa-ken 254 (JP) NAKADA, Kazuya Hiratsuka-shi,Kanagawa-ken 254 (JP) (74) Representative: Sanderson, Laurence Andrew, et al  SANDERSON & CO. European Patent Attorneys 34, East Stockwell Street Colchester Essex CO1 1ST Colchester Essex CO1 1ST (GB)