Global Patent Index - EP 1015661 A4

EP 1015661 A4 2000-11-02 - ANODISING MAGNESIUM AND MAGNESIUM ALLOYS

Title (en)

ANODISING MAGNESIUM AND MAGNESIUM ALLOYS

Title (de)

MAGNESIUMANODISIERUNG UND MAGNESIUMLEGIERUNGEN

Title (fr)

ANODISATION DU MAGNESIUM ET D'ALLIAGES AU MAGNESIUM

Publication

EP 1015661 A4 (EN)

Application

EP 98914165 A

Priority

  • NZ 9800040 W
  • NZ 31446797 A
  • NZ 32831697 A
  • NZ 32871997 A

Abstract (en)

[origin: WO9842892A1] This invention provides a method for the anodisation of magnesium or magnesium based alloys using an electrolytic solution (preferably derived primarily from phosphoric acid) containing ammonia, amines or both. The use of such an aqueous electrolytic solution (irrespective of other additions) in at least preferred forms alters the conditions under which anodisation can occur to provide a more than satisfactory coating on the magnesium material with reduced cycle times.

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

C23C 22/84; C25D 11/30

IPC 8 full level (invention and additional information)

C25D 11/30 (2006.01)

CPC (invention and additional information)

C25D 11/30 (2013.01)

Citation (search report)

  • No further relevant documents disclosed
  • See also references of WO 9842892A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9842892 A1 19981001; AU 6858198 A 19981020; AU 729510 B2 20010201; CA 2284616 A1 19981001; DE 19882231 T1 20000210; EP 1015661 A1 20000705; EP 1015661 A4 20001102; EP 1015670 A1 20000705; EP 1015670 A4 20020102; GB 2341397 A 20000315; GB 9922584 D0 19991124; IL 131996 A 20030410; IL 131996 D0 20010319; JP 2001518983 A 20011016; JP 2002515092 A 20020521

INPADOC legal status


2001-08-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20001209

2000-11-02 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000918

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-11-02 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 23C 22/84 A, 7C 25D 11/30 B

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991022

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE