Radiation imagery chemistry: process – composition – or product th – Product having sound record or process of making
Patent
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.
Farnsworth Gary V.
Gandy Gerald C.
Richards Hugh W.
Brammer Jack P.
Eastman Kodak Company
Lorenzo A. P.
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