Photographic element having a magnetic recording stripe overlyin

Details Photographic element having a magnetic recording stripe overlyin Photographic element having a magnetic recording stripe overlyin

1980-08-25

1981-08-11

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Product having sound record or process of making

430529, G03C 178

Patent

active

042834767

ABSTRACT:
Photographic elements comprising a support having on one side thereof at least one image-forming layer and on the opposite side an antistatic layer comprising a phosphate ester antistatic agent are provided with a magnetic stripe that is useful for sound recording by applying a magnetic striping composition over the antistatic layer. The magnetic striping composition is comprised of finely-divided magnetic particles and a polymeric binder in a solvent medium and contains an adhesion-promoting amount of a metal salt which provides strong bonding of the magnetic stripe to the photographic element and thereby overcomes problems of stripe separation.

REFERENCES:
patent: 3220843 (1965-11-01), Lovick et al.
patent: 3418126 (1968-12-01), Ariga et al.
patent: 3658573 (1972-04-01), Guestaux et al.

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