MULTILAYER COATING FILM-FORMING METHOD AND COATED
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United States of America Patent
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Issued Date -
Jan 30, 2014
app pub date -
Apr 5, 2012
filing date -
Apr 8, 2011
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The invention provides a multilayer coating film-forming method that allows formation of a multilayer coating film with excellent smoothness, sharpness and water resistance, and which avoids or minimizes pinhole popping. The multilayer coating film-forming method of the invention has the following construction. A multilayer coating film-forming method comprising the following steps (1) to (4): step (1): coating an article to be coated with an aqueous first pigmented coating composition (X), step (2): coating the article to be coated, with an aqueous second pigmented coating composition (Y), step (3): coating the article to be coated, with a clear coating composition (Z), and step (4): heating an uncured first pigmented coating film, uncured second pigmented coating film and uncured clear coating film to cure them, wherein the aqueous first pigmented coating composition (X) contains a blocked polyisocyanate compound with a specific blocked isocyanate group.
First Claim
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