摘要:
A novel class of redox releasing compounds contains an N,N-disubstituted carbamoyl ballast group. These compounds can be used in photographic elements and processes to release a dye or other photographically useful group as a function of silver halide development.
摘要:
Photographic elements, film units, processes and alkaline processing compositions are described wherein certain substituted 1-phenyl-3-pyrazolidinones are employed as electron transfer agents in color image transfer materials. The silver halide electron transfer agents or precursors thereof have the following formula: ##STR1## wherein: R is hydrogen or a hydrolyzable moiety;R.sub.1 is hydrogen or a hydroxy group;R.sub.2, R.sub.3 and R.sub.4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO.sub.2 R.sub.5, --O(CH.sub.2).sub.n OR.sub.6, --(CH.sub.2).sub.n OR.sub.6, --O(CH.sub.2).sub.n C.sub.6 H.sub.5, --(CH.sub.2).sub.n R.sub.7, or --O(CH.sub.2).sub.n R.sub.7 ;R.sub.5 is hydrogen or an alkyl group of 1 to 3 carbon atoms;R.sub.6 is hydrogen or a methyl group;R.sub.7 is NHS0.sub.2 R.sub.5 or SO.sub.2 NHR.sub.5 ; andn is a positive integer of 1 to 2;with the proviso that at least one of R.sub.2, R.sub.3 and R.sub.4 must be one of the groups other than hydrogen.
摘要翻译:描述了摄影元件,膜单元,方法和碱处理组合物,其中在彩色图像转印材料中使用某些取代的1-苯基-3-吡唑烷酮作为电子转移剂。 卤化银电子转移剂或其前体具有下式:其中:R是氢或可水解部分; R1是氢或羟基; R2,R3和R4各自表示氢,羟基,1〜3个碳原子的烷基,1〜3个碳原子的烷氧基,苯基,-NHSO2R5,-O(CH2)nOR6, - (CH2)nOR6 ,-O(CH 2)n C 6 H 5, - (CH 2)n R 7或-O(CH 2)n R 7; R5是氢或1〜3个碳原子的烷基; R6是氢或甲基; R7是NHS02R5或SO2NHR5; n为1〜2的正整数。 条件是R 2,R 3和R 4中的至少一个必须是氢以外的基团之一。
摘要:
Photographic elements, film units, processes and alkaline processing compositions are described wherein certain subsituted 1-phenyl-3-pyrazolidinones are employed as electron transfer agents in color image transfer materials. The silver halide electron transfer agents or precursors thereof have the following formula: ##STR1## wherein: R is hydrogen or a hydrolyzable moiety;R.sub.1 is hydrogen or a hydroxy group;R.sub.2, R.sub.3 and R.sub.4 each represent hydrogen, hydroxy, an alkyl group of 1 to 3 carbon atoms, an alkoxy group of 1 to 3 carbon atoms, a phenyl group, --NHSO.sub.2 R.sub.5, --O(CH.sub.2).sub.n OR.sub.6, --(CH.sub.2).sub.n OR.sub.6, --O(CH.sub.2).sub.n C.sub.6 H.sub.5, --(CH.sub.2).sub.n R.sub.7, or --O(CH.sub.2).sub.n R.sub.7 ;R.sub.5 is hydrogen or an alkyl group of 1 to 3 carbon atoms;R.sub.6 is hydrogen or a methyl group;R.sub.7 is NHSO.sub.2 R.sub.5 or SO.sub.2 NHR.sub.5 ; andn is a positive integer of 1 to 2;with the proviso that at least one of R.sub.2, R.sub.3 and R.sub.4 must be one of the groups other than hydrogen.
摘要翻译:描述了摄影元件,膜单元,方法和碱性处理组合物,其中某些取代的1-苯基-3-吡唑烷酮被用作彩色图像转印材料中的电子转移剂。 卤化银电子转移剂或其前体具有下式:其中:R是氢或可水解部分; R1是氢或羟基; R2,R3和R4各自表示氢,羟基,1〜3个碳原子的烷基,1〜3个碳原子的烷氧基,苯基,-NHSO2R5,-O(CH2)nOR6, - (CH2)nOR6 ,-O(CH 2)n C 6 H 5, - (CH 2)n R 7或-O(CH 2)n R 7; R5是氢或1〜3个碳原子的烷基; R6是氢或甲基; R7是NHSO2R5或SO2NHR5; n为1〜2的正整数。 条件是R 2,R 3和R 4中的至少一个必须是氢以外的基团之一。
摘要:
A first electro-optic display comprises first and second substrates, and an adhesive layer and a layer of electro-optic material disposed between the first and second substrates, the adhesive layer comprising a mixture of a polymeric adhesive material and a hydroxyl containing polymer having a number average molecular weight not greater than about 5000. A second electro-optic display is similar to the first but has an adhesive layer comprising a thermally-activated cross-linking agent to reduce void growth when the display is subjected to temperature changes. A third electro-optic display, intended for writing with a stylus or similar instrument, is produced by forming a layer of an electro-optic material on an electrode; depositing a substantially solvent-free polymerizable liquid material over the electro-optic material; and polymerizing the polymerizable liquid material.
摘要:
Video displays using relatively low frame rates of about 10 to about 20 frames per second, but having acceptable video quality are described. The displays may use bistable media, and may be driven such that the medium, when driven, changes its optical properties continuously during the driving of each frame. The displays may use an electro-optic medium such that the frame period is from about 50 to about 200 per cent of the switching time of the electro-optic medium at the driving voltage used.
摘要:
Video displays using relatively low frame rates of about 10 to about 20 frames per second, but having acceptable video quality are described. The displays may use bistable media, and may be driven such that the medium, when driven, changes its optical properties continuously during the driving of each frame. The displays may use an electro-optic medium such that the frame period is from about 50 to about 200 percent of the switching time of the electro-optic medium at the driving voltage used.