摘要:
There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound which releases a quaternary in alkaline environment. Photographic products and processes utilizing such compounds are also disclosed.
摘要:
Diffusion transfer photographic color processes and products are described utilizing novel image dye-providing materials which provide image dyes having the chromophoric system represented by the formula ##STR1## wherein X is ##STR2## or --SO.sub.2 --R.sub.1 ; Z is H, alkyl or aryl; R is H, alkyl or aryl; DYE is any dye moiety; R.sub.1 is H, alkyl, aryl, --NH.sub.2, --NHR.sub.2, --N(R.sub.2).sub.2 or --OR.sub.2 ; R.sub.2 is H, alkyl or aryl; and m is 1 or 2. The image dye providing material includes a diffusion control moiety such as a hydroquinonyl group or a precursor thereof and may be diffusible or nondiffusible as a function of the diffusion control moiety.
摘要:
An improved liquid crystal display includes, in sequence from the viewing surface to the medial plane of the display, a substantially transparent polymeric layer, a polarizing layer, a protective layer, a transparent electrode layer, an alignment layer, and a layer of liquid crystal material. The use of a polymeric layer with a polarizing layer intermediate the polymeric layer and the liquid crystal material results in a relatively lower cost display in which the optical anisotropy of the polymeric material does not adversely affect the operation of the liquid crystal display.
摘要:
A class of polyesters comprising recurring units having certain bis(trifluoromethyl)biphenylene radicals is disclosed. The polyesters exhibit favorable solubility properties in certain organic solvents so as to facilitate the production of the polyesters via polycondensation methods to film- and fiber-forming molecular weights. Monomeric compounds comprising a bis(trifluoromethyl)biphenylene radical and useful for the production of the polyesters are also disclosed.
摘要:
Photographic diffusion transfer film units including polymeric diffusion control layers are disclosed. The diffusion control layers comprise polymers which are hydrolyzable in an alkaline medium so as to convert a layer comprising one or more of the polymers from a condition of impermeability to alkali or materials soluble in or solubilized by an aqueous alkaline processing composition to a condition of substantial permeability thereto.
摘要:
Laminated documents, such as ID cards, including a color-coded protective assembly comprising a novel pigment composition integrated with an adhesive bond within the assembly.
摘要:
A color filter is formed on a support, such as a charge coupled device, by (a) forming a layer on a support with a composition comprising a positive photoresist and a dye; said dye being soluble in the solvent of said photoresist; (b) exposing predetermined portions of said layer to radiation adapted to increase the solubility of said coating in the exposed areas; (c) developing said exposed areas to form a pattern of filter elements; and (d) repeating said steps with a different color dye in said composition; wherein said dye constitutes in excess of 10% by weight, dry basis of said composition, is substantially non-absorptive in the exposure wavelength of said composition, and provides predetermined absorptive characteristics for the specified filter element and said dye possessing substantially the same polarity as said composition.
摘要:
Copolymeric mordants coatable from water into copolymeric mordant layers for photographic products and processes are disclosed. The copolymeric mordants comprise polymerized repeating units from first and second polymerizable vinylbenzyl quaternary ammonium compounds (the first polymerizable compound, if homopolymerized, providing a water-soluble homopolymer and the second polymerizable compound being a micelle-forming compound which, if homopolymerized, forms a water-insoluble homopolymer). The copolymeric mordants are coatable to image-receiving layers for the mordanting of dyes in photographic products and processes.
摘要:
Photographic processing compositions containing a light-reflecting pigment and a styrene-butadiene copolymer are disclosed. The photographic processing compositions are useful in photographic diffusion transfer film units and processes for the provision of permanent photographic laminates. A light-reflecting layer formed in a photographic laminate from such a processing composition exhibits a reduced tendency toward cohesion or adhesion failure and separation.
摘要:
An image-receiving element adapted to the provision of a diffusion transfer photograph and having a preprinted security pattern between contiguous layers thereof is disclosed. The pattern comprises a patterning agent and a binder therefor preferentially adhesive to the contiguous layer closest in proximity to the image-receiving layer of such element. Diffusion transfer photographs prepared from the image-receiving element carrying the preprinted security pattern are useful in the production of an information-bearing document such as an ID card.