Magnetic recording media

US4647513A · kind A · utility

Assignee

• BASF SE

Inventors

• August Lehner
• Albert Kohl · Laumersheim, DE
• Werner Balz · Schifferstadt, DE
• Friedrich Sommermann · Kehl, DE
• Milan Velic · Ludwigshafen, DE
• Werner Grau · Frankenthal (Pfalz), DE
• Reinhold Baur · Ortenberg, DE

Key dates

• Filing date: Dec 24, 1984
• Grant date: Mar 3, 1987
• Expiry date: Dec 24, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/256
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Magnetic recording media consisting of a non-magnetic base and, applied thereto, one or more firmly adhering magnetizable layers based on magnetic material finely dispersed in a polymeric binder, at least one lubricant and further conventional additives, wherein the lubricant used is zinc stearate which has been rendered hydrophilic.