Process of making a magnetic recording medium

US4287225A · kind A · utility

Assignee

• BASF SE

Inventors

• Eckhart Kneller · Witten, DE
• Roland Koenig · Habach, DE
• Eberhard Koester · Bischofswerda, DE
• Werner Grau · Frankenthal (Pfalz), DE
• Dieter Mayer · Ludwigshafen, DE

Key dates

• Filing date: Mar 3, 1980
• Grant date: Sep 1, 1981
• Expiry date: Mar 3, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/265
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A magnetic recording medium comprising a non-magnetic base which is dimensionally stable at up to 300.degree. C., and an 0.03-0.4 .mu.m thick magnetically hard recording layer of an Sm-Co alloy, vacuum-deposited thereon, which layer possesses uniaxial magnetic anisotropy in the plane of the layer, and a process for the manufacture of this recording medium.