Patent · US Expired

Production of layer-type magnetic recording media

US4671969A · kind A · utility

0Cited by

0References

9Claims

0Family size

Assignee

BASF SE

Inventors

August Lehner
Werner Balz · Schifferstadt, DE
Werner Lenz · Bad Dürkheim, DE
Albert Kohl · Laumersheim, DE
Guenter Heil

Key dates

Filing date	Jul 26, 1985
Grant date	Jun 9, 1987
Priority date	—
Expiry date	Jul 26, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/702
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Layer-type magnetic recording media are produced by dispersing a finely divided magnetically anisotropic material in a binder which consists of not less than 40% of a radiation-curable aqueous binder dispersion, applying the dispersion onto a non-magnetic base, orienting the magnetically anisotropic material and drying and crosslinking the applied layer by means of UV or high-energy electron radiation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.