Global Patent Index - EP 1009867 A4

EP 1009867 A4 2000-08-09 - LITHIUM AND VANADIUM CONTAINING SEALING COMPOSITION AND PROCESS THEREWITH

Title (en)

LITHIUM AND VANADIUM CONTAINING SEALING COMPOSITION AND PROCESS THEREWITH

Title (de)

LITHIUM UND VANADIUM ENTHALTENDE DICHTUNGS-ZUSAMMENSETZUNG UND ENTSPRECHENDES VERFAHREN

Title (fr)

COMPOSITION D'ETANCHEITE RENFERMANT DU LITHIUM ET DU VANADIUM ET PROCEDE CORRESPONDANT

Publication

EP 1009867 A4 (EN)

Application

EP 98921044 A

Priority

  • US 9809374 W
  • US 4668297 P

Abstract (en)

[origin: WO9851841A1] The corrosion resistance of an article having a surface with a primary inorganic coating, such as a conversion coating, over a metal substrate can be improved by treatment of the primary coating with an aqueous liquid sealing composition comprising lithium cations and vanadate anions. This treatment is particularly advantageous for primary coatings formed on aluminum alloys by treating them with a conversion coating forming aqueous composition made by reacting cobalt(II) cations, acetate ions, hydroxyalkyl amines, and peroxides in aqueous solution.

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

C23F 11/00; C23C 22/34; C23C 22/40; C23C 22/68; C23C 22/83; C23F 11/18

IPC 8 full level (invention and additional information)

C23C 22/34 (2006.01); C23C 22/40 (2006.01); C23C 22/68 (2006.01); C23C 22/83 (2006.01); C23F 11/00 (2006.01)

CPC (invention and additional information)

C23C 22/83 (2013.01); C23C 22/68 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL SE

EPO simple patent family

WO 9851841 A1 19981119; AU 7373498 A 19981208; AU 744551 B2 20020228; BR 9809639 A 20000711; CA 2290495 A1 19981119; CN 1260844 A 20000719; EP 1009867 A1 20000621; EP 1009867 A4 20000809; JP 2002512657 A 20020423; NZ 501680 A 20011130; TR 9902799 T2 20000522; ZA 9803867 B 19981113

INPADOC legal status


2004-06-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031202

2002-09-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020717

2000-08-09 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000623

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

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

- Free text: 7C 23F 11/00 A, 7C 23F 11/18 B, 7C 23C 22/34 B, 7C 23C 22/40 B, 7C 23C 22/68 B, 7C 23C 22/83 B

2000-06-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991213

2000-06-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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