Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Reexamination Certificate
2006-09-19
2006-09-19
Letscher, Geraldine (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
C430S955000, C430S956000, C430S957000, C430S958000, C430S959000, C430S960000, C430S544000
Reexamination Certificate
active
07108964
ABSTRACT:
The invention relates to a novel kind of anthranilic acid compound that releases a UG as a function of chemical bond cleavage according to Formula (I):in-line-formulae description="In-line Formulae" end="lead"?Q-(AAS)-UGin-line-formulae description="In-line Formulae" end="tail"?where UG is an useful group and is chemically bonded to (AAS); (AAS) is an anthranilic acid switching group; and Q is a group in which the bond to (AAS) is broken so that the -(AAS)-UG fragment subsequently decomposes to the free UG.In one embodiment this invention relates to a multilayer silver halide photographic element comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one layer additionally contains an anthranilic acid compound according to Formula (II):in-line-formulae description="In-line Formulae" end="lead"?G-(TG1)q-(AATG)-(TG2)p-PUGin-line-formulae description="In-line Formulae" end="tail"?where G is a group in which the bond to the timing group is cleaved upon reaction with oxidized developer; TG1 and TG2 represent any known timing or switching group and may be the same or different; q and p are independently 0 or 1; AATG represents an anthranilic acid timing group and PUG is a photographically useful group.
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Allway Philip A.
Clark Bernard A.
Friedrich Louis E.
Singer Stephen P.
Stanley Paul L.
Eastman Kodak Company
Letscher Geraldine
Meeks Roberts Sarah
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