(19)
(11) EP 1 017 505 A1

(12)

(43) Date of publication:
12.07.2000 Bulletin 2000/28

(21) Application number: 98923440.6

(22) Date of filing: 21.05.1998
(51) International Patent Classification (IPC)7B05D 1/18, C04B 9/02, C23C 22/48
(86) International application number:
PCT/US9809/902
(87) International publication number:
WO 9852/699 (26.11.1998 Gazette 1998/47)
(84) Designated Contracting States:
DE ES FR GB IT NL SE

(30) Priority: 22.05.1997 JP 13185997

(71) Applicant: HENKEL CORPORATION
Gulph Mills,Pennsylvania 19406 (US)

(72) Inventors:
  • NAKADA, Kazuya
    Utsunomiya-shiTochigi-ken 321-0951 (JP)
  • KAWAGUCHI, Motoki
    Utsunomiya-shiTochigi-ken 321-3223 (JP)
  • MAEDA, Kazuhiro
    Kumagaya-shiSaitama-ken 360-0841 (JP)

(74) Representative: Sanderson, Laurence Andrew et al
SANDERSON & CO.European Patent Attorneys34, East Stockwell Street
ColchesterEssex CO1 1ST
ColchesterEssex CO1 1ST (GB)

   


(54) WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS