METHOD OF FORMING MULTILAYERED COATING FILM

Title:

METHOD OF FORMING MULTILAYERED COATING FILM

Document Type and Number:

WIPO Patent Application WO/1999/012660

Kind Code:

A1

Abstract:

A method of forming a multilayered coating film by applying a cationic electrodeposition coating material containing a blocked polyisocyanate compound as a cross-linking agent, applying a water-based intercoating material containing a blocked polyisocyanate compound as a cross-linking agent on the electrodeposited coating film to form an intercoating film without curing the electrodeposited coating film, and heating the two coating films to simultaneously cure both, characterized by regulating the coating materials so that the cross-linking curing reaction of the electrodeposited coating film begins earlier than that of the intercoating film. This method can give a multilayered coating film improved in finish appearance (smothness, gloss, etc.), interlaminar adhesion between the coating films, etc.

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Inventors:

YOKOYAMA TETSUYA (JP)
KASARI AKIRA (JP)
YAWATA TAKESHI (JP)
HIRAKI TADAYOSHI (JP)
TOMISAKI YASUHIRO (JP)

Application Number:

PCT/JP1998/004099

Publication Date:

March 18, 1999

Filing Date:

September 11, 1998

Export Citation:

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Assignee:

KANSAI PAINT CO LTD (JP)
YOKOYAMA TETSUYA (JP)
KASARI AKIRA (JP)
YAWATA TAKESHI (JP)
HIRAKI TADAYOSHI (JP)
TOMISAKI YASUHIRO (JP)

International Classes:

B05D7/00; (IPC1-7): B05D1/36; B05D7/24

Foreign References:

JPH06228796A	1994-08-16
JPH07163936A	1995-06-27
JPS60251973A	1985-12-12
JPS6473099A	1989-03-17

Other References: