METHOD FOR FORMING MULTILAYER COATING FILM

WIPO Patent Application WO/2007/126107

A1

Disclosed is a method for forming a multilayer coating film wherein an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition are sequentially applied to an object to be coated, and then the thus-obtained first colored coating film, second colored coating film and clear coating film are baked at a time. The aqueous first colored coating composition (A) contains a polyester resin and a curing agent, and the polyester resin contains a benzene ring and a cyclohexane ring in a molecule in an amount of 1.0-2.2 mol/kg (resin solid content) in total, while the curing agent is composed of at least one compound selected from the group consisting of isocyanate group-containing compounds, oxazoline group-containing compounds, carbodiimide group-containing compounds, hydrazide group-containing compounds and semicarbazide group-containing compounds. By this method, a coating film excellent in smoothness, sharpness, chipping resistance and water resistance can be formed by a three-coat one-bake system.

FURUSAWA SATORU (JP)
ADACHI TAKATO (JP)
SATOU SHINGO (JP)
TAKAHASHI TERUTAKA (JP)

PCT/JP2007/059346

November 08, 2007

April 24, 2007

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KANSAI PAINT CO LTD (JP)
FURUSAWA SATORU (JP)
ADACHI TAKATO (JP)
SATOU SHINGO (JP)
TAKAHASHI TERUTAKA (JP)

B05D7/24; B05D1/36; C09D5/00; C09D5/44; C09D7/12; C09D167/00; C09D175/06

JP2006022216A	2006-01-26
JP2004025046A	2004-01-29
JP2001327911A	2001-11-27
JP2004298837A	2004-10-28

ODAJIMA, Heikichi et al. (Nippon Jitensha Bldg.9-15, Akasaka 1-chom, Minato-ku Tokyo 52, JP)

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