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. 04, 1996
Filed:
Dec. 21, 1992
Applicant:
Inventors:
Norbert Schneider, Altrip, DE;
August Lehner, Roedersheim-Gronau, DE;
Ursula Klein, Limburgerhof, DE;
Werner Lenz, Bad Duerkheim, DE;
Werner Balz, Limburgerhof, DE;
Albert Kohl, Laumersheim, DE;
Guenter Bettinger, Schifferstadt, DE;
Assignee:
BASF Magnetics GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; G11B / ; B05D / ;
U.S. Cl.
CPC ...
428323 ; 428331 ; 4286 / ; 4286 / ; 428447 ; 428900 ; 427128 ; 427130 ;
Abstract
Magnetic recording media are obtained by preparing a dispersion of anisotropic magnetic material and additives in a solution of a polymeric binder in an organic solvent, applying the dispersion as a layer to a nonmagnetizable substrate, then orienting the anisotropic magnetic material in a magnetic field and solidifying the applied magnetic layer, and the magnetic layer contains water-repellent polysilica and, if required, a highly viscous polysiloxane.