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1. (WO2015114990) COATING METHOD AND COATED ARTICLE OBTAINED BY THE SAME

Pub. No.:    WO/2015/114990    International Application No.:    PCT/JP2014/083628
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Sat Dec 13 00:59:59 CET 2014
IPC: B05D 7/00
Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventors: YOMO, Shuji
TACHI, Kazuyuki
HAYASHI, Hisao
Title: COATING METHOD AND COATED ARTICLE OBTAINED BY THE SAME
Abstract:
A coating method for forming a laminated coating film including a lower layer formed on a base material and an upper layer formed on the lower layer, the coating method comprising: a preparation step of preparing a thermosetting coating material as a lower layer-coating material for forming the lower layer and preparing a thermosetting coating material as an upper layer-coating material for forming the upper layer; a formation step of forming an uncured laminated coating film by applying the lower layer-coating material and the upper layer-coating material on the base material using a wet-on-wet technique; and a baking step of simultaneously curing the lower layer-coating material and the upper layer-coating material by subjecting the uncured laminated coating film to a baking treatment, wherein in the preparation step, the lower layer-coating material and the upper layer-coating material are selected so that an absolute value of a difference in shrinkage ratio between the lower layer-coating material and the upper layer-coating material is 2.0% or smaller at a late stage of the baking in the baking step.