Patent · US Expired

Process for the production of magnetic recording carriers

US5009925A · kind A · utility

12Cited by

6References

5Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Ernst Grigat
Walter Meckel · Neuss, DE
Burkhard Nippe · Munich, DE

Key dates

Filing date	Oct 5, 1988
Grant date	Apr 23, 1991
Priority date	—
Expiry date	Oct 5, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/90
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Magnetic recording carriers having improved mechanical properties are obtained by using, as dispersing agents, compounds corresponding to the general formula ##STR1## which are attached to the magnetic pigment by their SO.sub.3 H group and which have reactive groups by which they are linked to the reactive groups of the polymeric binder through a difunctional or higher functional isocyanate.

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