Global Patent Index - EP 1027938 A1

EP 1027938 A1 2000-08-16 - METHOD OF FORMING MULTILAYERED COATING FILM

Title (en)

METHOD OF FORMING MULTILAYERED COATING FILM

Title (de)

VERFAHREN ZUM MEHRSCHICHTIGEN BESCHICHTUNGSFILM

Title (fr)

PROCEDE DE FORMATION DE FILMS DE REVETEMENT MULTICOUCHES

Publication

EP 1027938 A1 (EN)

Application

EP 98941831 A

Priority

  • JP 9804099 W
  • JP 24658197 A

Abstract (en)

There is disclosed a method of forming a multilayered coating film by coating a cationic electrodeposition paint, containing a blocked polyisocyanate compound as a crosslinking agent, forming an intermediate coating film by coating a water-based intermediate paint, containing a blocked polyisocyanate compound as a cross-linking agent, on the formed, electrodeposited coating film without curing said electrodeposited coating film, and then heating both coating films to form a multilayered coating film by curing both together, characterized by regulating so that the crosslinking curing reaction of said electrodeposited coating film starts earlier than the crosslinking curing reaction of said intermediate coating film. According to the method the finish appearance (smoothness, gloss etc.), interlaminar adhesion between both coating films of the multilayered coating film can be improved.

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

B05D 1/36; B05D 7/16; B05D 7/24

IPC 8 full level (invention and additional information)

B05D 7/00 (2006.01)

CPC (invention and additional information)

B05D 7/542 (2013.01)

Designated contracting state (EPC)

DE GB

EPO simple patent family

EP 1027938 A1 20000816; EP 1027938 A4 20040428; CA 2303027 A1 19990318; WO 9912660 A1 19990318

INPADOC legal status


2004-10-20 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040401

2004-04-28 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20040311

2004-04-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7B 05D 1/36 A

2004-04-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7B 05D 7/24 B

2004-04-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7B 05D 7/16 B

2000-08-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000410

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

- Kind Code of Ref Document: A1

- Designated State(s): DE GB