摘要:
High-speed black-and-white photothermographic emulsions and materials comprise chemically sensitized photosensitive silver halide grains, at least 70% of the total photosensitive silver halide projected area being provided by tabular silver halide grains comprising at least 70 mole % bromide (based on total silver halide). The tabular grains have an average thickness of at least 0.02 &mgr;m and up to and including 0.10 &mgr;m, an equivalent circular diameter of at least 0.5 &mgr;m and up to and including 8 &mgr;m, and an aspect ratio of at least 5:1. These high-speed materials can be imaged in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. In one embodiment, they have one or more thermally developable layers on both sides of the support and can be imaged using X-radiation with or without a phosphor intensifying screen in an imaging assembly.
摘要:
A process is disclosed of preparing a radiation sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination or tetracoordination complex having at least one organic ligand containing a least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond, or at least one carbon-to-nitrogen-to-hydrogen bond sequence and at least half of the metal coordination sites occupied by halide or pseudohalide ligands. The metal forming the complex is chosen from periods 4, 5 and 6 and groups 3 to 13 inclusive of the periodic table of elements. The incorporation of the transition metal ion dopant and at least one organic ligand into the cubic crystal lattice of the silver halide grains can be used to improve photographic performance.
摘要:
A photographic silver halide emulsion is disclosed comprised of radiation sensitive composite silver halide grains including host grain portions accounting for at least 50 percent of total silver and surface portions epitaxially deposited on the host grain portions. The epitaxially deposited surface portions on the host grain portions exhibit a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal from periods 4, 5 and 6 of groups 3 to 14 inclusive of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.
摘要:
A silver halide emulsion comprising radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of an iridium ion in which at least half of the coordination sites in the hexacoordination complex are provided by halogen or pseudohalogen ligands, and at least one coordination site is provided by a ligand comprising a azole ring containing a chalcogen atom and a nitrogen atom, wherein the azole ring is substituted at the 5-position with a halide ion. The invention provides emulsions containing with a preferred class of iridium dopants which are especially useful for improving reciprocity performance in silver halide emulsions with minimal or no impact on other aspects of photographic performance. These dopants give a superior balance of reciprocity and other photographic properties compared to other iridium dopants exemplified in the prior art.
摘要:
A process is disclosed of preparing a radiation sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination or tetracoordination complex having at least one organic ligand and at least half of the metal coordination sites occupied by halide or pseudohalide ligands. The metal forming the complex is chosen from periods 4, 5 and 6 and groups 3 to 14 inclusive of the periodic table of elements. The incorporation of the transition metal ion dopant and at least one organic ligand into the cubic crystal lattice of the silver halide grains can be used to improve photographic performance.
摘要:
The invention is generally accomplished by providing a tabular-grain silver halide emulsion in which at least 50 percent of the total grain projected area is accounted for by tabular grains having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than about 0.011 micrometer. In a preferred form, at least 90 percent of the total grain projected area is accounted for by the tabular grains of the invention having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than 0.012 micrometer.
摘要:
The invention is generally accomplished by providing a tabular-grain silver halide emulsion in which at least 50 percent of the total grain projected area is accounted for by tabular grains having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than about 0.011 micrometer. In a preferred form, at least 90 percent of the total grain projected area is accounted for by the tabular grains of the invention having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than 0.012 micrometer.
摘要:
A system and method for providing to a taxpayer a loan in an amount based on the taxpayer's estimated tax refund amount due for a current year, the loan being provided to the taxpayer prior to year end of the current tax year and prior to completion and filing of the taxpayer's current year tax return forms with a taxing authority. The taxpayer's estimated tax refund may be based on historical tax refund data as well as current year income data. A loan granting entity may consider the level of tax refunds that the taxpayer has received in previous years as well as income data for the first three quarters of the year to determine a reasonable estimate of the tax refund amount that the taxpayer will likely receive for the current tax year.
摘要:
A tax refund system is disclosed in which in exchange for a taxpayer assigning all or a portion of his or her tax refund, a participating provider provides to the taxpayer a spending vehicle with buying power at participating outlets. Tax return data for an individual's tax return is processed by the IRS. A taxpayer consents to using a portion of the tax return data to acquire a spending vehicle from a financial institution of the taxpayer's choosing. Using a portion of the tax return data, the IRS arranges to electronically transfer an amount related to the taxpayer's refund to an account at the financial institution selected by the taxpayer. A taxpayer then receives a spending vehicle such as a credit, debit, or cash card, spending account, coupon, or rebate from a financial institution or other spending vehicle provider such as a retailer, service provider, wholesaler, distributor, or entertainment entity.
摘要:
A system and method for associating payments with spending vehicles so that an individual who is entitled to receive periodic or special payments such as social security checks receives in place of the payment a spending vehicle such as a discount card, rebate, or coupon for use with purchases of the sponsor's products or services. Sponsors include companies and organizations interested in offering purchase incentives to their customers. An individual who wishes to receive a spending vehicle rather than the regular payment selects the spending vehicle he or she would like to receive. The individual then assigns his or her right to receive the payment to a third party. The third party then arranges to give a spending vehicle to the individual and to transfer the individual's payment to the sponsor of the spending vehicle. The third party may take a portion of the payment as compensation for the service.