Global Patent Index - EP 0783379 A4

EP 0783379 A4 2000-02-16 - TREATMENT TO IMPROVE CORROSION RESISTANCE OF AUTODEPOSITED COATINGS ON METALLIC SURFACES

Title (en)

TREATMENT TO IMPROVE CORROSION RESISTANCE OF AUTODEPOSITED COATINGS ON METALLIC SURFACES

Title (de)

BEHANDLUNG ZUR ERHÖHUNG DES KORROSIONSWIDERSTANDES VON AUTOPHONETISCHEN SCHICHTEN AUF METALLOBERFLÄCHEN

Title (fr)

TRAITEMENT DESTINE A L'AMELIORATION DE LA RESISTANCE A LA CORROSION DES REVETEMENTS AUTODEPOSES SUR DES SURFACES METALLIQUES

Publication

EP 0783379 A4 (EN)

Application

EP 95933063 A

Priority

  • US 9511404 W
  • US 31643794 A

Abstract (en)

[origin: WO9610461A1] A process enhances corrosion resistance of autodeposited coatings on metallic surfaces by contacting the uncured coating on the metallic surface with a reaction rinse solution containing complex fluoride anions. In a preferred use, because the protective properties of the autodeposited coatings are improved on both cold rolled and galvanized steel, both may be processed simultaneously, providing practical and economic advantages.

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

B05D 3/04; B05D 3/10; B05D 7/14; C23C 22/48

IPC 8 full level (invention and additional information)

B05D 1/18 (2006.01); B05D 7/14 (2006.01)

CPC (invention and additional information)

B05D 7/144 (2013.01)

Citation (search report)

  • No further relevant documents disclosed
  • See also references of WO 9610461A1

Designated contracting state (EPC)

BE DE DK ES FR GB IT NL PT SE

EPO simple patent family

WO 9610461 A1 19960411; AU 3585695 A 19960426; AU 691668 B2 19980521; BR 9509053 A 19970930; CA 2199983 A1 19960411; CN 1159775 A 19970917; EP 0783379 A1 19970716; EP 0783379 A4 20000216; JP H08173901 A 19960709; MX 9702065 A 19970628; TW 308611 B 19970621; ZA 9508251 B 19960424

INPADOC legal status


2002-10-16 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20020401

2000-11-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001016

2000-02-16 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000105

2000-02-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2000-02-16 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7B 05D 3/04 A, 7B 05D 3/10 B, 7C 23C 22/48 B, 7B 05D 7/14 B

1997-07-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19970429

1997-07-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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