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:
Oct. 28, 1986
Filed:
May. 05, 1983
Applicant:
Inventors:
Milena Melzer, Ludwigshafen, DE;
Helmut Jakusch, Frankenthal, DE;
Werner Grau, Bobenheim-Roxheim, DE;
Eberhard Koster, Frankenthal, DE;
Werner Loser, Ludwigshafen, DE;
Reinhard Polke, Mutterstadt, DE;
Gunter Schadel, Mannheim, DE;
Manfred Ohlinger, Frankenthal, DE;
Gunter Vath, Limburgerhof, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; C04B / ;
U.S. Cl.
CPC ...
252 6254 ; 252 6253 ; 427 48 ; 427128 ; 428323 ; 428328 ; 428329 ; 428695 ; 428900 ;
Abstract
A magnetic dispersion which can be applied to a non-magnetic base to produce a recording medium is prepared by dispersing a magnetically anisotropic material in a polymer binder and in an organic solvent by a method wherein the magnetically anisotropic material is worked in a jet mill before and/or during dispersing.