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.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Apr. 08, 2011
Naoto Matsushima, Hiratsuka, JP;
Takeshi Matsuda, Hiratsuka, JP;
Yusuke Kurata, Wako, JP;
Satoru Ihara, Wako, JP;
Naoto Matsushima, Hiratsuka, JP;
Takeshi Matsuda, Hiratsuka, JP;
Yusuke Kurata, Wako, JP;
Satoru Ihara, Wako, JP;
Kansai Paint Co., Ltd., Hyogo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
This invention provides a method for forming multilayer coating film, which comprises successively carrying out a step of applying an intermediate paint onto a coating object to form an intermediate coating film; a step of forming a base coating film by applying onto the intermediate coating film a water-based base coating paint; a step of forming a clear coating film by applying onto the base coating film a clear coating paint, and a step of heating the uncured intermediate coating film, base coating film and clear coating film to simultaneously cure these three coating films; wherein the intermediate paint has a complex viscosity at 40° C. (η*) of not higher than 100 Pa·sec under the conditions of shear stress, 1.0 Pa and frequency, 0.1 Hz, and a complex viscosity at 80° C. (η*) of at least 800 Pa·sec under the conditions of shear stress, 1.0 Pa and frequency, 0.1 Hz.