Matches 151 - 200 out of 222 < 1 2 3 4 5 >
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4124386 Color diffusion transfer receiving layer comprising polymeric quaternary n-heterocyclic mordant  
An image-receiving layer of an image-receiving element used for a color diffusion transfer process comprising a dyeable polymer or mordant polymer having the structural unit represented by the...
4124388 Ammonium mordants for photographic dyes  
Photographic film units and photographic products using an acetal of a hydroxylated polymer and a formyl benzyl quaternary salt(s) as a mordant for diffusible dye image-providing materials.
4115618 Novel protective plastomeric sheet for identification card  
A protective plastomeric sheet material for lamination to an image containing layer of a diffusion transfer photographic product.
4080346 Novel graft copolymers having vinylbenzyl ammonium halide residues  
Novel graft polymers particularly useful as diffusion transfer image dye mordants.
4071366 Polymeric quaternary dye image receiving layers with overcoat  
Improved diffusion transfer photographic products and processes wherein a distinctive image-receiving sheet comprising a plurality of layers one of which comprises a polymeric material providing...
4047952 Imagewise soluble silver salt intensification of diffusion transfer silver images  
The use of a soluble, reducible silver salt in combination with an imagewise exposed diffusion transfer photographic element comprising a negative silver halide emulsion and an associated physical...
4038082 Image-receiving material for color diffusion transfer comprising PVA and polymethylol compounds  
An image-receiving element for color diffusion transfer photography for use with a photographic element containing at least one silver halide emulsion layer having incorporated therein a dye image...
4009031 Diffusion transfer image-receiving element having polyvinylpyridine layer treated with hydrophilic colloid/ammonia solution  
Coating a solution comprising a hydrophilic colloid and ammonia over a receiving layer comprising polyvinylpyridine in an image-receiving element of a photographic film unit significantly reduces...
3993486 Diffusion transfer color photographic flim unit with composite of image-receiving element with light intercepting element  
A diffusion transfer color photographic film unit, (a) which contains: 1. a light-sensitive element comprising a support having thereon at least one light-sensitive silver halide emulsion layer...
3986875 Polymeric ammonium mordants for dye transfer  
An image-receiving element for use in a color diffusion transfer process which comprises a support having thereon an image-receiving layer containing a mordanting polymer having therein a repeating...
3984472 Preparation of N,N-dialkyl p-vinyl anilines  
A process of forming a dye mordant precursor for a photographic system by reacting a p-amino phenethyl alcohol with a trialkyl phosphate at a controlled temperature, and dehydrating the resultant...
3958995 Photographic elements containing cross-linked mordants and processes of preparing said elements  
A process for preparing photographic elements comprising a support, a layer containing an acid dye or acid dye precursor and a layer containing a dye mordant composition, said process comprising...
3930864 Auxiliary mordant layer for excess dye formed in integral color transfer assemblage  
Excessive image density produced during or after processing by dye diffusing from the image generating unit into the dye image-receiving layer of an integral color transfer assemblage is controlled...
3898088 Photographic elements containing polymeric mordants  
A water-insoluble polymer comprising repeating units at least 1/3 of said repeating units having the formula: ##SPC1## Wherein R 1 and R 2 are hydrogen or alkyl and R 3 , R 4 and R 5 are alkyl...
3859096 CROSSLINKING POLYMERIC DYE MORDANTS  
A dye mordant composition comprises the reaction product of (1) a vinyl copolymer derived from ethylenically unsaturated monomers comprising first and second repeating units wherein at least one...
3836365 NOVEL PHOTOGRAPHIC PRODUCTS AND PROCESSES  
The present invention relates to photography, particularly, to photographic products specifically adapted for employment in specified photographic diffusion transfer color processes and, more...
3770439 POLYMERIC MORDANT IN COLOR DIFFUSION TRANSFER IMAGE RECEIVING LAYER  
A photographic product having an image pattern receiving layer which comprises a polymer of the formula: ##SPC1## Where each R 1 can be the same or different substituent chosen from the group...
3753764 PHOTOGRAPHIC DIFFUSION TRANSFER PRODUCT AND PROCESS  
A receiving sheet for use in a diffusion transfer process comprises a polyolefin surface such as polyethylene over which is coated a cellulose ester layer such as cellulose triacetate, an acid...
3721558 MORDANT VEHICLE FOR COLOR IMAGE TRANSFER RECEIVERS  
The use of a hydrophobic, alkali-permeable polymer as a binder for a dye mordant in a dye image-receiving layer employed in color diffusion transfer systems results in less stain than conventional...
3721556 DIFFUSION TRANSFER RECEPTION ELEMENTS, FILM UNITS AND PROCESSES THEREFOR  
A dye image-receiving element comprising a light-reflecting layer underneath a dye image-receiving layer, each of the layers containing a basic polymeric mordant, is useful in color development...
3709690 NOVEL POLYMERS AND PHOTOGRAPHIC ELEMENTS CONTAINING SAME  
Polymers comprising quaternary nitrogen atoms and at least two aromatic nuclei in the polymer cation for each quaternary nitrogen atom are described. In one embodiment at least one-third of the...
3709693 NOVEL PHOTOGRAPHIC PRODUCTS AND PROCESSES UTILIZING MULTICOLOR ADDITIVE SCREENS WHOSE FILTER UNITS ARE FORMED OF DEVELOPMENT-DIFFUSIBLE DYES  
A color image is formed by exposing a photosensitive element having associated therewith an additive color screen, preferably a trichromatic color screen, composed of red, green and blue filter...
3590692 SILVER HALIDE DEVELOPING AGENTS AND PHOTOGRAPHIC PROCESS  
Photographic process and product employing silver halide developing agents of quaternary ammonium compounds of the formula: DEV--LINK--QUAT wherein DEV is a dihydroxyaryl silver halide developing...
3511655 LAMINATIONS  
3488706 NOVEL POLYMERS CONTAINING QUATERNARY AMMONIUM GROUPS  
3460941 NOVEL PHOTOGRAPHIC PRODUCTS AND PROCESSES  
3435761 PREMORDANTED IMBIBITION DYE PRINTING BLANK  
3418117 Multicolor dye developer image transfer systems  
3388994 Photographic image-receiving elements having been treated with ammonia after drying  
3386825 Photographic product containing zinc  
3382214 Vinyl pyridine copolymers comprising segments having hydroxy substituents thereon and a process for their preparation  
3377166 Photographic image transfer process utilizing imidazole  
3362822 Film formation in silver and color diffusion transfer processes  
3359104 Color diffusion transfer process and negative material thereof  
3353956 Photographic diffusion transfer processes utilizing an imidazole and an image-receiving element containing a polymeric acid layer  
3352679 Photographic element comprising polycarbonate resin coated paper  
3351470 Novel photographic products, processes and compositions  
3340806 Premordanted imbibition dye printing blank  
3316090 Photographic product and process  
3316089 Photographic products and processes utilizing cross-linking agents containing intralinear quaternary nitrogen atoms  
3312549 Receiving sheet for photographic dyes  
3291604 Process for creating and subsequently transferring an ionic photochromic image  
3271147 Coacervate mordant dispersions for acid dyes  
3271148 Mordanting of acid dyes  
3249393 Process of dyeing polymeric film  
3245791 Photographic transfer process and composition  
3243294 Photographic direct-positive color process  
3234025 Prevention of dye-diffusion in photographic image bearing colloid layers  
3222168 Diffusion transfer process  
3184309 Non-light sensitive dye transfer receiving blanks and method of using them  
Matches 151 - 200 out of 222 < 1 2 3 4 5 >