Coating method and coated article obtained by the same
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United States of America Patent
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Apr 17, 2018
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N/A
app pub date -
Dec 12, 2014
filing date -
Jan 30, 2014
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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 including: preparing a thermosetting coating material as a lower layer-coating material and preparing a thermosetting coating material as an upper layer-coating material; 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 simultaneously curing the lower layer-coating material and the upper layer-coating material by baking the uncured laminated coating film. 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 and the upper layer coating materials is 2.0% or smaller at a late stage of the baking step.
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