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:
Apr. 22, 2003
Filed:
Mar. 27, 2002
Thomas M. Smith, Spencerport, NY (US);
Luba Kordovski, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A process is described for healing scratches on the base side of an imaged motion picture film element comprising a polymeric film base having one or more image layers on one side thereof, the process comprising applying an aqueous coating formulation comprised of an aqueous dispersion of a polyurethane to the scratched base side of the motion picture film element, and drying the applied coating formulation to form a polyurethane layer, wherein the polyurethane comprises an aliphatic polyurethane which has a Young's modulus at 100% elongation to break of less than 4000 psi and a Sward hardness value of at least 60. Scratch healing formulations employed in accordance with the invention provide coated layers with superior resistance to blocking, cleaning solvents, and abrasion, and which are more flexible, dry faster, and are more effective in hiding minor scratches than that disclosed in the prior art.