摘要:
Disclosed is a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by Formula I: ##STR1## wherein R" represents the group ##STR2## in which R.sup.1, R.sup.2, and R.sup.3 independently selected all groups, provided that any two of R.sup.1, R.sup.2, and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent; andW is a specified substituent having the formula: ##STR3## and wherein the remaining substituents are as described in the specification. The use of the coupler of Formula I lends improved manufacturability and dye light stability to the element.
摘要:
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: whereinX is hydrogen or a coupling-off group;R.sup.1, R.sup.2, and R.sup.3 are independently selected alkyl groups, provided that any two of R.sup.1, R.sup.2, and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent;R.sup.a is hydrogen or a substituent;Y is a substituent with at least one Y substituent having a formula selected from the group consisting of --CONR.sup.b R.sup.c, --NHCOR.sup.d, and --SO.sub.2 R.sup.e, wherein R.sup.b, R.sup.c, and R.sup.d are independently selected from the group consisting of H, alkyl, aryl, and heterocyclic groups and R.sup.e is selected from the group consisting of an alkyl group, an aryl group, a heterocyclic group, --NR.sup.g R.sup.h, and --OR.sup.i wherein R.sup.g, R.sup.h, and R.sup.i are selected from the same group as R.sup.a and n is from 1 to 5.The element exhibits improved magenta dye light stability.
摘要:
Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a bicyclic azole dye-forming coupler, having appended to a ring carbon at a non-coupling position thereof a substituent group represented by the formula: wherein the arrow represents the point of attachment of the substituent group to a non-coupling position of the coupler; R1, R2, R3 and R4 are independently selected hydrogen or substituent groups, provided that any two of R1, R2, R3 and R4 may join to form a ring; Ra and Rb are independently hydrogen or a substituent; each Rc and Rd is an independently selected hydrogen or an alkyl or aryl group, provided that any two of them may join to form a ring and n is 1 to 10; Re is hydrogen or an alkyl or aryl group; each Y is an independently selected substituent group and m is from 0 to 4; and Z is a substituent selected from the group consisting of —C(O)R5, —S(O)2R5, —SOR5, —P(═O)(R6)2 and —P(═O)(OR6)2 in which R5 is selected from the group consisting of alkyl, aryl, heterocyclic, alkoxy, aryloxy, alkylamino, and arylamino groups and each R6 is independently selected from the group consisting of alkyl and aryl groups; provided that Z can form a ring with any one of Rc and Rd. Such an element provides improved image dye stability.
摘要翻译:公开了一种照相元件,其包含感光卤化银乳剂层,该感光卤化银乳剂层具有与其相连的双环唑形染料形成成色剂,其在非偶合位置附加有环碳,由下式表示的取代基:其中箭头表示 取代基与偶联剂的非偶联位置的连接点; R 1,R 2,R 3和R 4独立地选自氢或取代基,条件是R 1,R 2,R 3和R 4中的任何两个可以连接形成 R a和R b独立地是氢或取代基;每个R c和R d是独立选择的氢或烷基或芳基,条件是它们中的任何两个可以连接形成环,n是1至10; Re是氢 或烷基或芳基;每个Y是独立选择的取代基,m是0-4; 并且Z是选自-C(O)R 5,-S(O)2 R 5,-SOR 5,-P(= O)(R 6)2和-P(= O)(OR 6)2的取代基,其中 R5选自烷基,芳基,杂环,烷氧基,芳氧基,烷基氨基和芳基氨基,每个R6独立地选自烷基和芳基; 只要Z可以与Rc和Rd中的任何一个形成环。 这样的元素提供了改进的图像染料稳定性。
摘要:
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: ##STR1## wherein X is hydrogen or a coupling-off group;R.sup.1, R.sup.2, and R.sup.3 are independently selected alkyl groups, provided that any two of R.sup.1, R.sup.2 and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent;R.sup.a is hydrogen or a substituent;each Y is an independently selected substituent with at least one Y substituent in the 2-position (relative to oxygen) having the formula --NHSO.sub.2 R.sup.f, wherein R.sup.f is an alkyl or aryl group, and n is from 1 to 5.The element exhibits improved magenta dye light stability.
摘要翻译:本发明提供了一种照相元件,其包含卤化银乳剂层,其具有与式II所代表的染料形成成色剂:其中X为氢或偶合离去基团; R 1,R 2和R 3是独立选择的烷基,条件是R 1,R 2和R 3中的任何两个可以连接形成环; R4是氢或取代基,条件是当R 4为取代基时,R 3和R 4可以连接形成环; Ra是氢或取代基; 每个Y是在具有式-NHSO 2 R f的2-位(相对于氧)中具有至少一个Y取代基的独立选择的取代基,其中Rf是烷基或芳基,n是1至5.元素表现出改进 品红染料光稳定。
摘要:
A photographic element containing a silver halide emulsion layer having associated therewith, a dye-forming coupler and a dye stabilizer which has a melting point of less than 150.degree. C. (and preferably less than 100.degree. C.) and is of the formula: ##STR1## wherein R, m, q, X, Y, r, and (R.sup.7).sub.n are defined in the specification.The element particularly contains a coupler which forms a yellow dye upon reaction with oxidized developer. A method of making stabilizers of the above type using particular solvents and a non-aqueous workup, is also provided.
摘要:
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula I: ##STR1## wherein X is hydrogen or a coupling-off group; andR' is a tertiary alkyl group and R" represents the group ##STR2## in which R.sup.1, R.sup.2, and R.sup.3 are independently selected alkyl groups, provided that any two of R.sup.1, R.sup.2, and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent; andW is a substituent selected from the group consisting of --C(O)R.sup.5, --SO.sub.2 R.sup.5, and --P(O)(OR.sup.6).sub.2 in which R.sup.5 is selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, alkylamino, and arylamino groups and R.sup.6 is selected from the group consisting of alkyl and aryl groups.The element exhibits improved magenta dye light stability.
摘要:
Disclosed are x-ray contrast compositions for oral or retrograde examination of the gastrointestinal tract comprising a polymeric material capable of forming a coating on the gastrointestinal tract and an x-ray producing agent of the formula ##STR1## and methods for their use in diagnostic radiology of the gastrointestinal tract whereinZ=H, halo, C.sub.1 -C.sub.20 alkyl, cycloalkyl, lower alkoxy, cyano, where the alkyl and cycloalkyl groups can be substituted with halogen or halo-lower-alkyl groups;R=C.sub.1 -C.sub.25 alkyl, cycloalkyl, or halo-lower-alkyl, optionally substituted with halo, fluoro-lower-alkyl, aryl, lower-alkoxy, hydroxy, carboxy, lower-alkoxy carbonyl or lower-alkoxycarbonyloxy, (CR.sub.1 R.sub.2).sub.p-- (CR.sub.3 .dbd.CR.sub.4).sub.m Q, or (CR.sub.1 R.sub.2).sub.p --C.tbd.C--Q;R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently lower-alkyl, optionally substituted with halo;x is 1-4;n is 1-5;m is 1-15;p is 1-10; andQ is H, lower-alkyl, lower-alkenyl, lower-alkynyl, lower-alkylene, aryl, or aryl-lower alkylin a pharmaceutically acceptable carrier.
摘要:
Low melting point epoxy scavenger compounds are disclosed which contain a pH dependent ionizable group to facilitate migration of the scavenger from an adjacent scavenger layer (that does not contain any coupler) to an imaging layer (containing coupler and emulsion) of a photographic element at the pH of development. One aspect of the invention comprises a process of forming an aqueous dispersion of an epoxy compound of the structural formula SI: ##STR1## wherein: R is H, an alkyl group, or an aryl group; L.sub.1 is an alkyl group or an aryl group; L.sub.2 is --O--, --CO--, --S--, --SO.sub.2 --, --PO.sub.2 --, --CO.sub.2 --, --NHCO-- or --NHSO.sub.2 --, wherein L.sub.2 may be orientated in either direction; L.sub.3 is an alkyl group; m is 0 or 1; p is 0 or 1; and X is ##STR2## wherein R' is H or an alkyl or aryl group, with the proviso that where L.sub.2 comprises an ionizable group, X may also be an alkyl group or an aryl group; wherein the compound has a melting point of less than about 50.degree. C. and the process comprises adding the compound in a liquid state to an aqueous solution, and directly dispersing the compound in the aqueous solution. Thermal and photochemical yellowing of a color photographic element, such as a color print, is inhibited by incorporating such compounds into the photographic element.
摘要翻译:公开了低熔点环氧清除剂化合物,其含有pH依赖性可电离基团,以促进清除剂从相邻的清除剂层(不含任何偶合剂)迁移至摄影元件的成像层(含有偶联剂和乳液) 发展pH。 本发明的一个方面包括形成结构式为SI:n芳基的环氧化合物的水分散体的方法; L1是烷基或芳基; L 2是-O-,-CO-,-S-,-SO 2 - , - O 2 - , - CO 2 - , - NHCO-或-NHSO 2 - ,其中L2可以沿任一方向取向; L3是烷基; m为0或1; p为0或1; 并且X是,其中R'是H或烷基或芳基,条件是其中L2包含可离子化基团,X也可以是烷基或芳基; 其中所述化合物具有小于约50℃的熔点,并且所述方法包括将液体中的化合物加入到水溶液中,并将化合物直接分散在水溶液中。 通过将这样的化合物并入照相元件中,可以抑制彩色照相元件如彩色印刷的热和光化学变黄。
摘要:
Disclosed is a process comprising reacting a primary alcohol sulfone with a reducing agent and a halogenating agent in the presence of an amide compound present in an amount of less than 1 part amide per part of primary alcohol sulfone to form a vinylsulfone.
摘要:
Disclosed are contrast agents of the formula ##STR1## contained in aqueous compositions and methods for their use in diagnostic radiology of the gastrointestinal tract whereinZ=H, halo, C.sub.1 -C.sub.20 alkyl, cycloalkyl, lower alkoxy, cyano, where the alkyl and cycloalkyl groups can be substituted with halogen or halo-lower-alkyl groups;R=C.sub.1 -C.sub.25 alkyl, cycloalkyl, or halo-lower-alkyl, optionally substituted with halo, fluoro-lower-alkyl, aryl, lower-alkoxy, hydroxy, carboxy, lower-alkoxy carbonyl or lower-alkoxy-carbonyloxy, (CR.sub.1 R.sub.2).sub.p --(CR.sub.3 .dbd.CR.sub.4).sub.m Q, or (CR.sub.1 R.sub.2).sub.p --C.tbd.C--Q;R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently lower-alkyl, optionally substituted with halo;x is 1-4;n is 1-5;m is 1-15;p is 1-10; andQ is H, lower-alkyl, lower-alkenyl, lower-alkynyl, lower-alkylene, aryl, or aryl-lower alkyl.