Photographic element
AssigneeEastman Kodak Company
InventorsJohn F. DeCory, Robert O. James, Kenneth L. Tingler, Ronald M. Wexler
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AssigneeEastman Kodak Company
InventorsJohn F. DeCory, Robert O. James, Kenneth L. Tingler, Ronald M. Wexler
Estimating the term…
A photographic element comprising a support having provided thereon a light-sensitive layer and a transparent magnetic recording layer, the magnetic recording layer comprising a transparent polymeric binder, ferro-magnetic particles and abrasive particles, the magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 1.times.10.sup.-10 mg/.mu.m.sup.3, the abrasive particles having a median diameter of from about 0.2 to about 0.4 .mu.m, specific surface area greater than 5 m.sup.2 /gm, a Mohs hardness of at least 6 and being present in the transparent magnetic layer in an amount of at least about 30% by weight based on the weight of the magnetic particles present.
A photographic element comprising a support having provided thereon a light-sensitive layer and a transparent magnetic recording layer, the magnetic recording layer comprising a transparent polymeric binder, ferro-magnetic particles and abrasive particles, the abrasive particles being present in the transparent magnetic recording layer in an amount of from about 1 to about 20 percent by weight based on the weight of the binder, the magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 1.times.10.sup.-10 mg/.mu.m.sup.3 and being present in the transparent magnetic recording layer in an amount of from about 1 to about 10 percent by weight based on the weight of the binder, the abrasive particles having a median diameter of from about 0.2 to about 0.4 .mu.m, specific surface area greater than 5 m.sup.2 /gm, a Mohs hardness of at least 6 and being present in the transparent magnetic layer in an amount of at least about 30% by weight based on the weight of the magnetic particles present.
A transparent magnetic recording layer comprising a transparent polymeric binder, ferro-magnetic particles and abrasive particles, the abrasive particles beina present in the transparent magnetic recording laverin an amount of from about 1 to about 20 percent by weight based on the weight of the binder, the magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 1.times.10.sup.-10 mg/.mu.m.sup.3 and being present in the transparent magnetic recording layer in an amount of from about 1 to about 10 percent by weight based on the weight of the binder, the abrasive particles having a median diameter of from about 0.2 to about 0.4 .mu.m, a specific surface area of greater than 5 m.sup.2 /gm, a Mohs hardness of at least 6 and being present in an amount of at least about 30% by weight based on the weight of the magnetic particles present.
Dependencies are inferred from the claim text.