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:
Nov. 05, 1985
Filed:
Jul. 12, 1984
August Lehner, Roedersheim-Gronau, DE;
Joachim Hack, Ludwigshafen, DE;
Karl Krucker, Frankenthal, DE;
Werner Balz, Limburgerhof, DE;
Karl H Roemer, Frankenthal, DE;
Peter Rudolf, Fussgoenheim, DE;
Roland Falk, Achern, DE;
Guenter Eckert, Limburgerhof, DE;
BASF Aktiengesellschaft, , DE;
Abstract
Magnetic recording media possessing a thin magnetic layer are produced by dispersing finely divided magnetically anisotropic material and conventional additives in a solution of a polymeric binder in an organic solvent, applying a layer of the dispersion to a non-magnetizable base by means of a knife-coater, then, if required, orienting the magnetically anisotropic material by means of a magnetic field and drying the applied layer, a high molecular weight organic compound which acts as a thickener being added to the magnetic dispersion.