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. 14, 1992

Filed:

Aug. 07, 1989
Applicant:
Inventors:

Tadamitsu Nakahama, Hiroshima, JP;

Yoshio Tanimoto, Hiroshima, JP;

Takakazu Yamane, Hiroshima, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427 27 ; 427240 ; 427346 ; 427425 ;
Abstract

A highly reflective surface coating on a substrate is formed by a coating method in a coating line. A paint is sprayed on the substrate in a viscosity of 18 seconds or lower when measured by means of Ford Cup #4 at 20.degree. C. in a film thickness thicker than a thickness at which the paint sags, the paint containing a solvent or solvents, having a boiling point as high as 110.degree. C. or lower in an amount of 50% by weight or higher. After completion of the spraying, a coat of the paint is dried by a drying step including sequential setting and baking steps. The substrate is held in an ambient temperature during the setting step which is lower than the ambient temperature during the baking step, and the rotation of the substrate in the drying step being carried out about its horizontal axis at a speed which is high enough to rotate the substrate from a vertical position to a horizontal position before the paint coated thereon substantially sags due to gravity yet which is low enough so as to cause no sagging as a result of centrifugal force, thereby allowing the coat formed thereon to achieve a substantially sagless state. This coating method prevents the paint from swelling on an edge portion of the substrate forming a mass, whereby a coat surface is provided with a high degree of flatness.


Find Patent Forward Citations

Loading…