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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9404010 B1

PDFFull Text
Date of Patent:
Aug. 02, 2016

Filed:

Jun. 24, 2013

Method for forming multilayer coating film

Applicant:

Kansai Paint Co., Ltd., Hyogo, JP;

Inventors:

Naoyuki Iwata, Kanagawa, JP;

Fumio Yamashita, Kanagawa, JP;

Minoru Ishikura, Kanagawa, JP;

Takashi Nakayabu, Kanagawa, JP;

Kazushi Konishi, Kanagawa, JP;

Toshiaki Morita, Aichi, JP;

Masami Kobata, Kanagawa, JP;

Assignee:

KANSAI PAINT CO., LTD., Hyogo, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Michael M Bernshteyn

Int. Cl.
CPC ...
C09D 133/08 (2006.01); C09D 133/14 (2006.01); C09D 175/04 (2006.01); C08G 18/48 (2006.01); C08L 75/04 (2006.01); B05D 7/00 (2006.01); C09D 133/06 (2006.01); C08G 18/62 (2006.01); C08G 18/79 (2006.01); C08G 18/80 (2006.01); C08G 18/10 (2006.01); C08G 18/28 (2006.01); C08G 18/22 (2006.01); C08G 18/24 (2006.01); C09D 5/00 (2006.01);
U.S. Cl.
CPC ...
C09D 133/08 (2013.01); B05D 7/572 (2013.01); C08G 18/10 (2013.01); C08G 18/222 (2013.01); C08G 18/227 (2013.01); C08G 18/244 (2013.01); C08G 18/283 (2013.01); C08G 18/2825 (2013.01); C08G 18/4833 (2013.01); C08G 18/6229 (2013.01); C08G 18/792 (2013.01); C08G 18/8064 (2013.01); C09D 133/066 (2013.01); C09D 133/14 (2013.01); C09D 175/04 (2013.01); B05D 2401/20 (2013.01); B05D 2425/01 (2013.01); C09D 5/00 (2013.01); Y10T 428/31551 (2015.04);
Abstract

An object of the present invention is to provide a method for forming a multilayer coating film, capable of achieving excellent curability under low-temperature, short-time conditions, and forming a multilayer coating film having excellent chipping resistance and an excellent finished appearance. This method comprises sequentially applying an aqueous first colored coating composition (X), an aqueous second colored coating composition (Y), and a clear coating composition (Z) to a substrate, and simultaneously bake-curing the resulting multilayer coating film. In this method, the aqueous first colored coating composition (X) comprises an aqueous film-forming resin (A) and a specific blocked polyisocyanate compound (B), and the clear coating composition (Z) comprises a hydroxy-containing acrylic resin (K) having a hydroxy value in a specific range, a polyisocyanate compound (L), and an organometallic catalyst (M) containing a metal compound (M1) selected from a specific range and an amidine compound (M2).

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