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:
Jun. 17, 2003
Filed:
Apr. 23, 2001
Donaldson J. Emch, Goodrich, MI (US);
Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Processes for coating metal or polymeric substrates are provided which include the steps of: (a) applying a liquid basecoating composition to a surface of the metal substrate; (b) applying a first infrared radiation at a power density of 30 kilowatts per meter squared or less and a first air simultaneously to the basecoating composition for a first period of at least about 30 seconds, a first velocity of the air at the surface of the basecoating composition being about 4 meters per second or less, a first temperature of the metal substrate being increased at a first rate ranging from about 0.05° C. per second to about 0.3° C. per second to achieve a first peak metal temperature ranging from about 30° C. to about 60° C., such that a pre-dried basecoat is formed upon the surface of the metal substrate; (c) applying a second infrared radiation and a second air simultaneously to the basecoating composition for a second period of at least about 15 seconds, a second velocity of the air at the surface of the basecoating composition being about 4 meters per second or less, a second temperature of the metal substrate being increased at a second rate ranging from about 0.4° C. per second to about 1.2° C. per second to achieve a second peak metal temperature of the substrate ranging from about 60° C. to about 80° C., such that a dried basecoat is formed upon the surface of the metal substrate; and (d) applying a powder topcoating composition over the dried basecoat.