摘要:
This invention relates to a silver halide photographic element for digital exposure comprising a cubical silver chloride emulsion precipitated and/or chemically sensitized in the presence of an aryliodonium compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 and R.sup.3 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, nitro groups, sulfo groups, alkylsulfoxide or trifluoralkyl groups, or any two of R.sup.1, R.sup.2 and R.sup.3 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system; R.sup.4 is a carboxylate salt or 0.sup.- ; w is 0 or 1; and X.sup.- is an anionic counter ion; with the proviso that when R.sup.3 is a carboxyl or sulfo group, w is 0 and R.sup.4 is 0.sup.-.
摘要:
This invention relates to a silver halide photographic element comprising a silver halide emulsion precipitated and/or chemically sensitized in the presence of an aryliodonium compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 and R.sup.3 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, nitro groups, sulfo groups, alkylsulfoxide or trifluoralkyl groups, or any two of R.sup.1, R.sup.2 and R.sup.3 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system; R.sup.4 is a carboxylate salt or 0.sup.- ; w is 0 or 1; and X.sup.- is an anionic counter ion; with the proviso that when R.sup.3 is a carboxyl or sulfo group, w is 0 and R.sup.4 is 0.sup.-.
摘要:
Electrostatographic developer compositions for use in developing electrostatic latent images wherein the triboelectric charging potential of functional polymers employed in the carrier materials are controlled through chemical alteration of active hydrogen containing materials by silylation. The controlled variation of the triboelectric behavior of functional polymers by silylation provides a means of attaining optimum triboelectric responses in development systems.
摘要:
The optical transitions of extrinsically optically active soluble and insoluble materials become circularly dichroic when in contact with twisted nematic liquid crystalline materials. The circularly dichroic optical properties induced in the normally extrinsically optically active materials are utilized to alter the relative amounts of left and right hand circularly polarized light in elliptically polarized light including producing circularly polarized light.
摘要:
The optical transitions of twisted nematic liquid crystalline compositions exhibit circular dichroism. The circular dichroism in twisted nematic liquid crystalline compositions is utilized to alter the relative amounts of left and right hand circularly polarized light in elliptically polarized light, including producing circularly polarized light.
摘要:
This invention relates to a silver halide photographic element comprising a silver halide emulsion precipitated and/or chemically sensitized in the presence of an sulfenimide compound represented by the formula: ##STR1## wherein M represents the atoms necessary to form, with R.sup.1 and R.sup.2, a five or six-membered ring or a multiple ring system; w is 1 or 0, wherein when w is 0, R.sup.1 and R.sup.2 are independently substituted or unsubstituted aliphatic, aromatic or heterocyclic groups, and when w is 1, R.sup.1 and R.sup.2 are independently carbonyl or sulfonyl groups; R.sup.3 is independently a substituted or unsubstituted aliphatic, aromatic or heterocyclic group and x is 0 or 1.
摘要翻译:本发明涉及一种卤化银照相元件,其包含在下式表示的亚硫酰亚胺化合物存在下沉淀和/或化学增感的卤化银乳剂:其中M表示与R1和R2形成必需的原子, 五元或六元环或多环系统; w为1或0,其中当w为0时,R 1和R 2独立地为取代或未取代的脂族,芳族或杂环基,当w为1时,R 1和R 2独立地为羰基或磺酰基; R 3独立地是取代或未取代的脂族,芳族或杂环基团,x是0或1。
摘要:
This invention provides a thermally processable imaging element comprising a support and a thermographic or photothermographic imaging layer, said imaging layer comprising a sulfenimide compound represented by the formula: ##STR1## wherein M represents the atoms necessary to form, with R.sup.1 and R.sup.2, a five or six-membered ring or a multiple ring system; w is 1 or 0, wherein when w is 0, R.sup.1 and R.sup.2 are independently substituted or unsubstituted aliphatic, aromatic or heterocyclic groups, and when w is 1, R.sup.1 and R.sup.2 are independently carbonyl or sulfonyl groups; R.sup.3 is independently a substituted or unsubstituted aliphatic, aromatic or heterocyclic group and x is 0 or 1.In one embodiment the thermally processable imaging element comprises:(a) photographic silver halide, and(b) an image-forming combination comprising(i) an organic silver salt oxidizing agent, with(ii) a reducing agent for the organic silver salt oxidizing agent.
摘要翻译:本发明提供了一种可热加工的成像元件,其包括载体和热成像或光热成像层,所述成像层包含由下式表示的亚磺酰亚胺化合物:其中M表示与R1和R2形成五元素所需的原子 或六元环或多环系统; w为1或0,其中当w为0时,R 1和R 2独立地为取代或未取代的脂族,芳族或杂环基,当w为1时,R 1和R 2独立地为羰基或磺酰基; R 3独立地是取代或未取代的脂族,芳族或杂环基团,x是0或1.在一个实施方案中,热可加工成像元件包括:(a)照相卤化银,和(b)成像组合,其包含(i) 有机银盐氧化剂,(ii)有机银盐氧化剂的还原剂。
摘要:
Bis-sulfonium, -selenonium, -arsonium, -ammonium, and -phosphonium salts useful as photoinitiators, comprise:an aromatic or heterocyclic aromatic group which absorbs UV or visible radiation and which exhibits a higher energy occupied molecular orbital than at least one other substituent attached to each of the S, Se, As, N or P atoms of said salt;at least one substituent, attached to each of the S, Se, As, N or P atoms of said salt, which comprises an electron-withdrawing group which causes the lowest unoccupied molecular orbital to be localized on the substituent and the S, Se, As, N or P atom of the salt;an insulating group which links said aromatic or heterocyclic aromatic group to each of the S, Se, As, N, or P atoms of said salt, said insulating group essentially preventing .pi. resonance between said aromatic or heterocyclic aromatic group and the other substituents in said salt; andtwo anions;said salt being capable, upon exposure to UV or visible radiation absorbed by said aromatic or heterocyclic aromatic group, of forming a Bronsted acid.The invention also relates to the use of such photoinitiators.
摘要:
Circular dichroism within absorption bands of nematic liquid crystalline compositions of positive dielectric anisotropy in the twisted nematic structure is utilized for information transfer applications.
摘要:
Ambipolar photoconductive composition comprising the product of the in situ polymerization of at least one cyclic compound of the formula: ##EQU1## wherein Ar is a polyaromatic nucleus selected from the group consisting of diradicals of naphthalene, anthracene, pyrene and carbazole;X and Y are independently selected from the group consisting of halogen, NO.sub.2, NH.sub.2 ; lower alkyl, phenyl, phenoxy, lower alkoxy, carboxy, hydroxyl, lower alkyl esters and aryl esters;m and n can range from 0 to the total number of replaceable hydrogens on the polyaromatic nucleus;In a polymeric host resin.By the appropriate in situ polymerization of the above compound in the host polymer, it is possible to produce an interpretating photoconductive netword throughout the host polymer. The resulting photoconductive materials can be incorporated into an imaging member in an electrostatographic imaging system and function in either a positive or negative charging mode.