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:
Jul. 02, 1996
Filed:
Mar. 10, 1995
Mridula Nair, Penfield, NY (US);
Lloyd A Lobo, Webster, NY (US);
George L Oltean, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An aqueous coating composition for forming a transparent magnetic recording layer contains a fine solid particle aqueous dispersion of dispersed magnetic particles, gelatin, and a polyelectrolyte having a molecular weight of at least 50,000. The coating composition may be prepared by milling an aqueous slurry of magnetic particles and a surface active dispersant having an HLB number of at least 8 until there are substantially no agglomerates of magnetic particles present, and then combining the milled dispersion with the gelatin and polyelectrolyte. The coating composition can be used to prepare magnetic recording elements and, in particular, photographic elements having a transparent, substantially haze-free magnetic recording layer.