Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Reexamination Certificate
2006-12-05
2006-12-05
Letscher, Geraldine (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
C430S543000, C430S551000, C430S556000, C430S557000, C430S600000, C430S613000
Reexamination Certificate
active
07144691
ABSTRACT:
A color photographic material which contains on a support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, together with customary non-light-sensitive layers, characterized in that at least one layer contains a compound of formula (I) or (II) wherein the R1-radicals and R2-radicals are preferably methyl; and wherein the compounds of formula (II) are preferably (III) R3is a radical —CH(CH3)—X—D, wherein X is phenylene. D is a group (IV) or a group —C(O)—C1–C18alkyl or a group —O—CH2—CH(OH)—CH2—NR12R13, with R12and R13being C1–C18alkyl or together form a 4 to 8 membered ring as defined in claim 1, or D is a group —O—CH2—CH(OH)—CH2—N(R12)—CH2—CHOH—CH2—O—or —O—CH2—CH(OH)—CH2—W—CH2—CHOH—CH2—O— with W being a divalent amino group (—N(C1–C18alkyl)−), a polyamine residue, a polyethyleneimine residue or a polyoxyalkyleneamine residue; Z and Z′ are for example C1–C12alkyl, C3–C12alkenyl, C3–C12alkenyl, C5–C8cycloalkyl, or Z and Z′ together bivalent groups such as —CH2—CH2— or —CH2—C(R18)(R19)—CH(R20)—
REFERENCES:
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patent: 4426134 (1996-01-01), None
patent: 99/46261 (1999-09-01), None
Derwent Abstr. 96-078096/09 for DE 4426134 (1996).
Biry Stéphane
Fuso Francesco
Kramer Andreas
Ciba Specialty Chemicals Corporation
Letscher Geraldine
Stevenson Tyler A.
Suhadolnik Joseph C.
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