Title (en)

Delible magnetic ink and process for making the same.

Title (de)

Radierbare magnetische Tinte und Verfahren zu ihrer Herstellung.

Title (fr)

Encre magnétique effaçable et son procédé de fabrication.

Publication

EP 0464474 A2 19920108 (EN)

Application

EP 91110061 A 19910619

Priority

• IT 2072590 A 19900622
• IT MI911494 A 19910531

Abstract (en)

The delible magnetic ink, particularly for marking documents and the like, includes a mixture of water, gum arabic, colored pigment and finely ground magnetic material mixed with an easily hydratable vehicle. In a further embodiment, the delible magnetic ink includes, in a mixture, a non-polar solvent, a grinding vehicle, organic pigments and finely ground magnetic material.

IPC 1-7

C09D 11/00; H01F 41/02

IPC 8 full level

H01F 41/16 (2006.01)

CPC (source: EP)

H01F 41/16 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0464474 A2 19920108; EP 0464474 A3 19930421

DOCDB simple family (application)

EP 91110061 A 19910619