Global patent index - EP 1017505 A4

EP 1017505 A4 2000-08-16 - WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS

Title (en)

WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS

Title (de)

AUF WASSER BASIERENDE FLÜSSIGKEITSBEHANDLUNG FÜR ALUMINIUM UND DESSEN LEGIERUNGEN

Title (fr)

TRAITEMENT LIQUIDE A BASE AQUEUSE POUR L'ALUMINIUM ET SES ALLIAGES

Publication

EP 1017505 A4 (EN)

Application

EP 98923440 A

Priority

  • JP 13185997 A
  • US 9809902 W

Abstract (en)

[origin: WO9852699A1] A chromium-free water-based surface treatment liquid which contains from 0.01 to 50 g/l of a total of dissolved manganic acid, permanganic acid, and salt(s) thereof and from 0.01 to 20 g/l of a total of dissolved titanium compounds and has a pH of from 1.0 to 6.0 reacts rapidly with aluminum and aluminum alloy surfaces to deposit thereon a protective coating that does not contain hexavalent chromium and has excellent corrosion resistance and paint film holding properties.

IPC 1-7 (main, further and additional classification)

B05D 1/18; C04B 9/02; C23C 22/34; C23C 22/48; C23C 22/56

IPC 8 full level (invention and additional information)

C23C 22/34 (2006.01); C23C 22/56 (2006.01)

CPC (invention and additional information)

C23C 22/56 (2013.01); C23C 22/34 (2013.01)

Citation (search report)

  • [X] DE 4031710 A1 19920409 - HENKEL KGAA [DE]
  • [X] WO 9702369 A1 19970123 - HENKEL CORP [US], et al
  • [A] DE 1521715 A1 19700205 - COLLARDIN GMBH GERHARD
  • [PA] US 5707465 A 19980113 - BIBBER JOHN W [US]
  • [X] PATENT ABSTRACTS OF JAPAN vol. 006, no. 015 (C - 089) 28 January 1982 (1982-01-28)
  • [DX] PATENT ABSTRACTS OF JAPAN vol. 006, no. 114 (C - 110) 25 June 1982 (1982-06-25)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 016, no. 029 (C - 0904) 24 January 1992 (1992-01-24)
  • [DA] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10 31 October 1996 (1996-10-31)
  • See also references of WO 9852699A1

Designated contracting state (EPC)

DE ES FR GB IT NL SE

EPO simple patent family

WO 9852699 A1 19981126; AU 744557 B2 20020228; AU 7573498 A 19981211; CA 2291140 A1 19981126; EP 1017505 A1 20000712; EP 1017505 A4 20000816; ZA 9804335 B 19981130

INPADOC legal status

2004-11-10 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040402

2004-09-22 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: HENKEL CORPORATION

- Ref Legal Event Code: RAP1

2001-09-05 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010723

2000-08-16 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000629

2000-08-16 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES FR GB IT NL SE

2000-08-09 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7B 05D 1/18 A, 7C 04B 9/02 B, 7C 23C 22/48 B, 7C 23C 22/56 B, 7C 23C 22/34 B

2000-07-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991220

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES FR GB IT NL SE