Patent · US Expired

Magnetic recording medium having an infra-red light transparent balkcoat layer

US5419959A · kind A · utility

0Cited by

6References

6Claims

0Family size

Assignee

BASF Magnetics GmbH · DE

Inventors

Hermann Roller · Ludwigshafen, DE
Peter Heilmann · Bad Dürkheim, DE
Michael Hitzfeld · Karlsruhe, DE
Dieter Stockburger · Havelsee, DE
Werner Latzel · Oberkirch, DE
Reinhold Baur · Ortenberg, DE
Peter Engelhardt · Hessisch Oldendorf, DE
Edwin Rothfuss · Hohberg, DE
Werner Grau · Frankenthal (Pfalz), DE
Werner Lenz · Bad Dürkheim, DE

Key dates

Filing date	Feb 18, 1994
Grant date	May 30, 1995
Priority date	—
Expiry date	Feb 18, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2982
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Flexible magnetic recording media consisting essentially of a web-like nonmagnetic substrate, a magnetic layer applied to one main side of the web-like substrate and a backing layer formed on the opposite main side of the substrate from a polymeric binder, at least one filler, at least one auxiliary pigment and a polyolefin having a spherical particle shape.

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