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.

Date of Patent:
Apr. 17, 2018

Filed:

Dec. 12, 2014
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;

Inventors:

Shuji Yomo, Nagakute, JP;

Kazuyuki Tachi, Nagakute, JP;

Hisao Hayashi, Nagakute, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/02 (2006.01); B05D 7/00 (2006.01); B05D 1/36 (2006.01);
U.S. Cl.
CPC ...
B05D 3/0254 (2013.01); B05D 1/36 (2013.01); B05D 7/532 (2013.01); B05D 7/542 (2013.01); B05D 2502/00 (2013.01); B05D 2502/005 (2013.01); B05D 2508/00 (2013.01);
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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