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:
Feb. 28, 2001
Marcus S. Bermel, Pittsford, NY (US);
Steven P. McKeown, Rochester, NY (US);
Kenneth J. Ruschak, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An improved method of thin film coating is taught that uses a multi-slot coating apparatus to apply multiple liquid layers to a moving substrate. The lowermost layer contacting the substrate is comprised of an organic solvent. The lowermost layer may be a single organic solvent or a blend of several organic solvents. Whether comprised of a single organic solvent or a blend of organic solvents, the viscosity of the lowermost layer is less than 1 cp and the wet thickness of the lowermost layer is not more than about 5 &mgr;m. Additional liquid layers are applied to the moving substrate on the top of the lowermost layer. This method allows for application of coatings at high substrate speeds. This method also allows for the reduction of coating artifacts caused by contamination of the surface of the die.