Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Structurally defined
Patent
1996-06-28
1998-06-23
Huff, Mark F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Structurally defined
430523, 430536, 430537, 430950, 430512, 430961, 430931, G03C 1106, G03C 132, G03C 300
Patent
active
057703531
ABSTRACT:
Silver halide photographic elements are disclosed comprising a support having a front and a back side, at least one light-sensitive silver halide emulsion layer and a light-insensitive protective overcoat on the front side of the support, and a magnetic recording layer on the back side of the support, the light-insensitive protective overcoat comprising an outermost protective layer, wherein the outermost protective layer comprises a hydrophilic binder and dispersed particles having a mean size of less than 0.4 .mu.m of a polymer having a glass transition temperature of at least 70.degree. C. comprising units derived from monomers A and B at a weight ratio of A:B of from 97:3 to 80:20 and less than 3 wt % ionic monomers, where A represents ethylenically unsaturated monomers which form substantially water insoluble homopolymers and B represents ethylenically unsaturated non-ionic monomers capable of forming water soluble homopolymers. In preferred embodiments of the invention, the light-insensitive protective overcoat further comprises an ultraviolet absorbing layer, which is preferably positioned between the light sensitive silver halide emulsion layer and the outermost protective layer, and which preferably comprises an ultraviolet absorbing dye, a high boiling organic solvent, and a hydrophilic binder. The outermost protective layer preferably also comprises photographic process insoluble matte particles having a mean particle size of larger than 0.5 .mu.m.
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Fant Alfred Bruce
Kestner Melvin Michael
Schroeder Kurt Michael
Smith Dennis Edward
Wang Yongcai
Anderson Andrew J.
Eastman Kodak Company
Huff Mark F.
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