Matches 201 - 250 out of 358 < 1 2 3 4 5 6 7 8 >
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4920031 Silver halide photographic light-sensitive elements containing water soluble dyestuffs  
There are provided by the invention silver halide photographic light-sensitive materials containing dyestuff(s) represented by the general formula (I): ##STR1## wherein R 1 , R 3 , R 4 , R 6 , L 1...
4904578 Light absorbing dye for photography  
This invention provides a light absorbing dye for silver halide photographic light-sensitive material which is represented by the following formula [I] or [II]: ##STR1## wherein R 1 and R 2 which...
4900653 Photographic elements containing filter dye particle dispersions  
Dyes according to the formula: ##STR1## are useful as filter dyes in photographic elements. In this formula, n is 1 or 2. R 1 and R 2 are each independently substituted or unsubstituted alkyl or...
4895786 Process for stabilizing photosensitive materials to replace exhaustive washing  
In a processing method for silver halide color photosensitive material in which silver halide color photosensitive material is treated to produce a color dye image with a processing solution that...
4892812 Silver halide photosensitive materials  
There is disclosed a silver halide photosensitive material for use under room-light wherein at least one silver halide emulsion layer contains (1) a spectrally unsensitized negative silver halide...
4882265 Infrared laser recording film  
A photographic element useful as a laser medical recording film, for example, is described. This element has near infrared sensitivity and is characterized by having an absorbing layer with an...
4877721 Photographic silver halide elements containing filter dyes  
A methine oxonol dye having a bis-(2-pyrazolin-5-one nucleus) substituted with (a) acyl groups in the 3 and 3' position; (b) aryl groups in the 1 and 1' position; and (c) bearing from 4 to...
4876181 Photographic elements containing infrared filter dyes  
A dye useful for absorbing infrared radiation in photographic elements, having the structure: ##STR1## is disclosed. In this formula R 1 and R 2 each independently represents sulfoalkyl,...
4871656 Photographic silver halide elements containing infrared filter dyes  
A dye useful for absorbing infrared radiation in photographic elements, having the structure: ##STR1## is disclosed. In this formula, R 1 and R 2 each independently represents sulfoalkyl,...
4861700 Photographic element containing yellow filter dyes having tricyanovinyl groups  
Photographic elements comprising filter dyes of the formula: ##STR1## wherein A is a pyrrole or indole nucleus, with the tricyanovinyl radical occupying the 2 or 3 position of the nucleus.
4857446 Filter dye for photographic element  
Dyes having structure ##STR1## A represents a substituted or unsubstituted nucleus having a carboxyphenyl or sulfonamidophenyl substituent selected from the group consisting of 2-pryazolin-5-ones...
4855221 Photographic elements having oxonol dyes  
Photographic elements having oxonol dyes of the formula: ##STR1## R 1 and R 2 each independently represent alkyl of from 1 to 5 carbon atoms are disclosed. The dyes are particularly useful as...
4849326 White light handeable direct-positive silver halide photographic elements  
UV-sensitive direct positive silver halide photographic elements for duplicating processes which can be safely handled under white light, said elements comprising a support base, a hydrophilic...
4839265 Silver halide photosensitive material containing an infrared absorption dye  
A silver halide photosensitive material having a hydrophilic colloid layer containing a specific water-soluble dye including at least three acid radicals. The water-soluble dye in the hydrophilic...
4833246 Novel pyrazolone dye  
A novel pyrazolone dye represented by the following formula (I), which can be effectively used as a filter dye, an irradiation inhibiting dye, an antihalation dye or the like in a photographic...
4822718 Light absorbing coating  
A broad spectrum light absorbing medium to be coated over photosensitive layers, such as a photoresist for integrated circuit "chips" to act as a true surface for autofocus of the camera used to...
4818659 Silver halide photographic materials for photochemical process which can be used in a bright room  
A silver halide photographic material for use in a bright room is disclosed comprising a support having thereon at least two silver halide emulsion layers, each of the emulsion layers having a...
4770984 Color photographic film element with blue and yellow antihalation layers  
Color photographic motion picture projection film element comprising a transparent film support and coated thereon in succession, a blue-sensitive silver halide emulsion layer comprising a...
4764455 Color image-forming process  
A color image-forming process is described, for a silver halide color photographic material comprising a support having provided thereon at least one red-sensitive silver halide emulsion layer, at...
4761365 Photographic light-sensitive materials containing specific magenta dyes to control photographic sensitivity  
A silver halide photographic light-sensitive material is disclosed, comprising a support base having coated thereon a photographic layer containing a magenta dye represented by formula (I) ##STR1##...
4756993 Electrophotographic photoreceptor with light scattering layer or light absorbing layer on support backside  
An electrophotographic photoreceptor is disclosed, comprising a light-transmitting conductive support having provided thereon a light-transmitting electrophotographic photosensitive layer, said...
4713316 Heat-developable photographic materials  
A heat-developable photographic material having improved preservability, which comprises a support having thereon at least one heat-developable photographic layer, said photographic material...
4607003 Photographic element  
A photographic element comprising a support and at least one silver halide emulsion layer. The photographic element contains at least one layer containing at least one of the dyes represented by...
4594312 Heat bleachable dye systems  
Photothermographic elements containing heat bleachable acutance/antihalation dyes and thermographic elements employing heat bleachable dyes of the formula: ##STR1## in which: n is 2, 3, 4 or 5, ...
4581323 Photothermographic element having topcoat bleachable antihalation layer  
A photothermographic element comprising a reflective base having coated thereon one or more layers constituting a photothermographic imaging medium in which a bleachable antihalation medium is...
4581325 Photographic elements incorporating antihalation and/or acutance dyes  
A photographic element of the conventional wet processed type or of the dry silver type which includes an antihalation or acutance dye which absorbs in the near infrared and has a relatively low...
4574115 Silver halide light-sensitive materials having a layer of grains having dye absorbed thereon  
A silver halide light-sensitive material is described, comprising (1) an emulsion layer containing light-sensitive silver halide grains, and (2) a layer containing metal salt grains on which...
4548896 Dye-bleach materials and process  
An imagewise bleachable composition is described comprising a dye in reactive association with a mesoionic compound. The composition may be bleached by radiation at wavelengths between 200 and 1000...
4542085 Negative working diazo light-sensitive composition with oxonol dye and lithographic printing plate using the same  
A negative working light-sensitive composition and a lithographic printing plate using the composition are described. The printing plate is comprised of a hydrophilic support and a thin layer of a...
4500631 Radiographic image forming process  
A radiographic image forming process comprising imagewise exposing a negative type silver halide light-sensitive photographic material in combination with a fluorescent intensifying screen to...
4497888 Light-sensitive o-quinonediazide printing plate with oxonol dye  
A light-sensitive printing plate precursor is disclosed. The printing plate precursor is comprised of an aluminum support base having provided on a grained and anodized surface. The surface is...
4497894 Colored silver halide photographic photosensitive materials  
Disclosed is a silver halide photographic photosensitive material which contains at least one dye analogous to a diaminotriphenylmethane dye having sulfo group but which contains, instead of the...
4440852 Silver halide photographic light-sensitive material containing oxonal dyes  
The present invention relates to a silver halide photographic light-sensitive material, and particularly to a silver halide photographic light-sensitive material containing a hydrophilic colloidal...
4407927 Photoresist composition  
By adding a compound represented by the following general formulas: ##STR1## to a conventional photoresist composition comprising a cyclized product of conjugated diene homopolymer or copolymer and...
4376162 Heat-developable photosensitive material with antihalation layer  
A heat-developable photosensitive material is disclosed having a high image sharpness. The material is comprised of a heat-developable photosensitive layer which includes an organic silver salt, a...
4369310 Bleachable dyes  
Dyestuffs of the general formula ##STR1## wherein A and B each represent a cyano, acyl or carbalkoxy group save that when A is cyano B cannot be cyano or carbalkoxy, or A and B form together with...
4366221 Photographic recording material and new merocyanines  
New merocyanines which have at least one water-solubilizing group are useful in photographic materials in antihalation and filter layers.
4359524 Heat developable photosensitive material  
A heat-developable photosensitive material is described comprising a heat-developable photosensitive layer containing at least an organic silver salt, a photocatalyst, and a reducing agent, wherein...
4311787 Photographic silver halide materials containing dispersed light-absorbing merostyryl dyes  
Light-sensitive photographic silver halide material comprising a hydrophilic colloid layer containing in dispersed state a light-absorbing merostyryl dye that corresponds to the following general...
4309500 Silver halide color photographic light-sensitive material  
A silver halide color photographic light-sensitive material which contains at least one compound represented by the following general formula (I): ##STR1## wherein R 1 , R 2 , R 3 and R 4 , which...
4308379 Acutance agents for use in thermally developable photosensitive compositions  
Acutance agents for use in thermally developable photosensitive compositions are disclosed. These novel compositions absorb scattered light and are rendered colorless at the development temperature...
4294917 Photographic silver halide material containing a dye filter or a dye anti-halation layer  
A photographic silver halide material is provided which comprises in at least one layer a solid dispersion of a water-insoluble dye of the formula ##STR1## wherein each of L, L' and L" are an...
4288534 Photographic silver halide materials containing light-absorbing dyes  
For absorbing light of the whole visible spectral region in a silver halide emulsion layer or in an antihalation layer of a photographic material it suffices to use a 2-pyrazolin-5-one pentamethine...
4283487 Thermolabile acutance dyes for dry silver  
Images produced in photothermographic emulsions using silver halide as a light-sensitive material therein suffer from light scattering effects on the silver halide. Acutance dyes, many of which are...
4271263 Thermally developable photosensitive compositions containing acutance agents  
Acutance agents for use in thermally developable photosensitive compositions are disclosed. These novel compositions absorb scattered light and are rendered colorless at the development temperature...
4268622 Photographic light-sensitive materials having dyed layers  
A silver halide photographic light-sensitive material having on a support a hydrophilic colloidal layer containing a basic polymer, and at least one styryl or butadienyl dye represented by the...
4266014 Photographic materials containing light absorbing methine dyes  
Light-absorbing fluorine-containing 2-pyrazolin-5-one methine oxonol dyes corresponding to the formula ##STR1## wherein R is C 1 -C 5 alkyl, aryl, alkoxycarbonyl, carboxy, or carbamoyl, and n is...
4260676 Photothermographic emulsions containing thermolabile acutance dyes  
A particular class of novel nitro-substituted dyes has been found to act as effective, heat labile acutance dyes for photothermographic emulsions.
4234677 Pyrazolone dyestuffs and their use in photographic materials  
Dyestuffs of the formula ##STR1## are provided wherein R 1 is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, amino or substituted amino, amido or substituted amido or hydroxyl,...
4233399 Photographic elements containing amino-substituted hydroxy-pyridones  
Pyridone dyestuffs of the formula ##STR1## are provided wherein R 1 is hydrogen or an optionally substituted alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical or an optionally substituted...
Matches 201 - 250 out of 358 < 1 2 3 4 5 6 7 8 >