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7011922 Thermal recording material  
The present invention provides a thermal recording material comprising a support and at least a thermal recording layer disposed on the support, wherein at least one of the thermal recording layer...
6864032 Method for forming azo colorant using diazo compound and coupler having leaving group and recording material using the coupler  
The present invention provides a method for forming an azo colorant by reaction of a diazo compound and a coupler. The coupler has a leaving group at the coupling position thereof, such that a...
6297058 Process for determining impurities in refractory materials  
A small sample of a refractory material, e.g., about 0.1 g to about 10 g, is heated to at least 1000° C., generally under a pressure of less than about 10-5 Torr. Evolved hydrogen-containing gases ...
6190823 Diazo-containing photosensitive material  
A diazo-containing photosensitive material comprising a transparent support, and a diazo-containing photosensitive layer provided over a surface of the support and containing a binder, a diazo...
5582952 Photosensitive lithographic printing plate containing a two-equivalent coupler residue-containing polymer  
A photosensitive lithographic printing plate which provides a wide range of proper conditions for development, high impression capacity, a flexible film sufficient in adhesion to a support and...
5424164 Image forming method  
A recording material which comprises a support having provided thereon capsules containing a photosensitive diazonium salt, and a polymerizable coupler. The recording material can give a...
5389491 Negative working resist composition  
A negative working resist composition comprising (a) an alkali-soluble resin, (b) an aromatic compound having at least two groups of the formula: --OCH2 OR1 wherein R1 is alkyl or aralkyl, (c) a...
5338642 Diazo type recording material comprising two couplers wherein the novel coupler used is a bis-malonamide  
A novel diazo type recording material is provided comprising a recording layer containing at least one light-sensitive diazo compound incorporated in microcapsules and a coupling component which...
5328796 Diazo type recording material utilizing microencapsulated diazo compound, a coupler and a hydroxyphenylsulfone derivative  
A diazo type recording material, which has a substantially unstained background, a superior preservability, and is capable of producing images of high density, wherein the diazo recording material...
5236800 Heat-developable light-sensitive copying material comprising microcapsules having substantially no solvent  
A heat-developable copying material comprising a support having thereon a heat-developable light-sensitive layer comprising microcapsules containing a diazo compound and substantially no solvent, a...
5225309 Light-sensitive litho printing plate with cured diazo primer layer, diazo resin/salt light-sensitive layer containing a coupler and silicone rubber overlayer  
Disclosed is a light-sensitive litho printing plate comprising: a support, a light-sensitive layer and a silicone rubber layer provided thereon, wherein said light-sensitive layer contains a...
4957847 Heat-sensitive cyclic diazo compound containing recording material with benzotriazine compound and coupling component  
A heat-sensitive recording material comprising a base and, on top of the said base, a heat-sensitive layer containing a cyclic diazo component and a coupling component, the cyclic diazo component...
4937170 Coupling agents for photographic elements  
A photographic element formed from a substrate and light sensitive coating on the substrate wherein the coating comprises a mixture of a diazo compound and an aromatic carboxylic coupling agent...
4895826 Heat-sensitive recording material with diazonium salt and coupler precursor with ester or urethane group  
A heat-sensitive recording material is disclosed, which comprises a support having thereon a heat-sensitive recording layer comprising a diazo compound and a coupler precursor compound, said...
4590263 High speed diazonium salts useful in diazo type photoreproduction  
Novel diazonium salts which possess excellent photo speed, good thermal stability, exceptional resistance to discoloration in the Dmin areas, rapid development, and allow a wide range of azo dye...
4569888 Transparentized paper sheet  
A transparentized paper with a caliper of between 0.001 and 0.015 inch and the process for its preparation is disclosed. A paper web is treated with a liquid mixture of polyesters, acid monoesters...
4537851 Process of forming powder pattern using positive diazonium salt photoresist  
A water-soluble, positive-working photoresist composition is disclosed which comprises water-soluble aromatic diazonium salt, water-soluble phenolic compound, and water-soluble polymeric compound....
4446218 Sulfur and/or amide-containing exposure accelerators for light-sensitive coatings with diazonium compounds  
This invention relates to proof film-type light sensitive diazonium materials containing accelerators selected from sulfur and/or amide-containing compounds which are capable of accelerating the...
4439512 Chromogenic compositions containing stabilized phenolic coupler compounds, recording materials and processes utilizing same  
Phenylurethane compounds formed by the reaction between a phenolic coupler compound and an organic isocyanate compound are utilized to form phenolic coupler compounds in situ in order to react with...
4424270 Light-sensitive mixture comprising a naphthoquinonediazidesulfonic acid ester and process for preparing said ester  
A light-sensitive mixture comprising a water-insoluble binder soluble in aqueous alkaline solutions, and the reaction product of a naphthoquinonediazidesulfonyl halide with a mixture composed of a...
4421839 Heat-sensitive and photofixing recording sheet with diazosulfonate and acidic coupling agent therefore  
A heat-sensitive recording sheet is proposed which has a heat-sensitive recording layer laminated on one surface of a support body and containing a diasosulfonate; a acid coupling agent comprising...
4416950 Transparent fibrous sheets  
Fibrous sheets are transparentized by coating them with monomers of the formula: ##STR1## wherein R is hydrogen or lower alkyl and n is an integer of 0 to 6; and polymerizing the monomers.
4401744 Diazotype compositions with improved printing performance  
Disclosure is made of a light-sensitive diazo coating composition and a light-sensitive diazotype reproduction material comprising a base with at least one coating layer comprising a light...
4304831 Black-color forming two-component type diazo copying material  
A two-component type diazo copying material according to this invention, which comprises a support and a photosensitive layer formed thereon, said layer consisting essentially of a diazo compound...
4289839 Negative image diazography formulation with acid labile coupler, diazonium compound and carboxylic acid anhydride  
Negative-working diazography material is comprised of (i) at least one diazonium compound, (ii) at least one acid labile enolic, preferably phenolic blocked-coupler adapted to be converted in the...
4252884 Negative-working diazotype photoreproduction  
Negative-working diazography material is comprised of (i) at least one diazonium compound, (ii) at least one acid labile enolic, preferably phenolic blocked-coupler adapted to be converted in the...
4233391 Water developable photopolymerizable compositions containing phosphine activators and saponified polyvinyl acetate  
A photopolymerizable composition and photosensitive elements produced therefrom are disclosed. The photopolymerizable composition includes: (a) a monomer component, (b) a polymer component, (c) a...
3976491 Diazo compositions and diazotype materials prepared from same  
Light-sensitive diazo compositions which comprise a resorcinol substituted in the 2-position with an alkyl group and in the 4-position with an aralkyl group as the yellow azo coupling component,...
3976488 Treating agent for diazo-type multicolor reproduction  
An original-treating agent to be used in the process for the diazo-type multi-color reproduction by which portions of a sensitive paper corresponding to preselected portions of an original can be...
3948661 Process for diazo-type multicolor reproduction  
A process for diazo-type multi-color reproduction by which portions of a sensitive paper corresponding to predetermined portions of an original can be colored selectively to different hues by...
3909273 Photopolymerization utilizing diazosulfonate and aromatic hydroxy compounds  
A photo-sensitive initiator for polymerization of ethylenically unsaturated compounds is the combination of a diazo-N-sulfonate and an aromatic hydroxy compound.
3881931 Method for developing black diazotype photographic light-sensitive materials  
A method for developing a diazo-type photographic light-sensitive material containing at least one light-sensitive diazonium compound (Component A) selected from the compounds represented by the...
3857896 SUBSTITUTED DIRESORCYL SULFIDE AND SULFOXIDE COMPOUNDS  
Substituted diresorcyl sulfide and sulfoxide compounds having the general formula: ##SPC1## Wherein R4 is an alkyl group containing from 1 to 6 carbon atoms, an unsubstituted aryl group. a...
3836369 DIAZO PHOTOSENSITIVE COMPOSITION  
Acid-stabilized, light sensitive azo dye-forming compositions comprising a mixture of at least one light sensitive diazonium salts from each of a fast group and a slow group and a mixture of...
3793030 PROCESS FOR PRODUCING DIAZOTYPE LIGHT-SENSITIVE MATERIAL  
A diazotype light-sensitive material is produced by coating a light-sensitive composition on a supporting sheet, said light-sensitive composition being prepared by dissolving a water soluble...
3785826 DIAZOTYPE MATERIALS FOR BLACKLINE IMAGES  
Sensitizing agents for ammonia vapor developable black-line two-component diazotype sensitizing formulations comprising diazotized derivatives of 4-N-pyrrolidinyl-3-alkyl-paraphenylenediamine are...
3769018 DIAZOTYPE MATERIALS CONTAINING RESORCINOL MONO(ARYLOXY OR ARYLTHIO)ALKYL ETHERS  
Resorcinol-mono(aryloxy or arylthio) alkyl ethers, e.g. m-(2-phenoxy-ethoxy)phenol, are. They are non-migrating in diazotype material; when coupled with light-sensitive diazo compounds therein...
3716364 DIAZOTYPE MATERIALS  
Two-component diazotype sheet materials are described which form dense azo dye images and produce only slight bleeding and background coloration. The sheet material is coated with a conventional...
3653903 DIAZO-TYPE MULTICOLOR REPRODUCTION PROCESS  
A process for the diazo-type multicolor reproduction which comprises (A) exposing to light a diazo-type photosensitive material having a photosensitive layer containing at least one diazonium salt...
3650750 HEAT-DEVELOPABLE DIAZO-TYPE LIGHT-SENSITIVE MATERIAL  
A heat-developable diazotype light-sensitive material is provided which gives a high density of dye-image. This light-sensitive material may be produced by applying to a substrate a solution...
3645741 DIAZOTYPE LIGHT-SENSITIVE MATERIAL FOR INTERMEDIATE ORIGINAL  
There is provided a diazotype light-sensitive material for intermediate original (or substitute original), the light-sensitive material being able to give a dye-image which is easy to see and has...
3632344 DIAZO-TYPE MATERIAL USING ALPHA-PYRONE ULTRAVIOLET RADIATION ABSORBERS  
Alpha-pyrone compounds are employed to provide colorless, lightfast ultraviolet radiation absorber materials. In addition to being normally colorless these materials are noncoloring due to their...
3625919 PROCESS FOR THE PREPARATION OF DIAZOTIZED VINYLPHENOL POLYMERS HAVING PHOTOTROPIC PROPERTIES  
Polymers having optical specificity which have a saturated hydrocarbon polymer chain and pendant phenol groups which are the coupled reaction products of phenol and a diazonium salt. These polymers...
3622326 DIAZOTYPE LIGHT-SENSITIVE COPYING PAPERS INTENDED FOR WET DEVELOPMENT AND FOR USE IN THE PREPARATION OF INTERMEDIATES  
A diazo-type copying paper which is prepared by coating, on a light-transmitting base, a light-sensitive composite containing a diazonium compound obtained from 1-amino-4-dialkylamino-monochloro...
3619191 DIAZO-TYPE MATERIALS  
Light-sensitive diazo compositions containing light-sensitive diazonium derivatives of dialkoxy-substituted paraphenylene diamines, at least one coupling component for said diazonium derivatives,...
3615484 TWO-COMPONENT DIAZO-TYPE PHOTOPRINTING MATERIAL FOR USE IN WET DEVELOPMENT  
A two-component diazo-type photoprinting material which is developed with an alkaline aqueous solution containing no coupler, said photoprinting material comprising a supporting sheet and a...
3499763 BIS PHENOLS AS HIGH OPACITY DIAZOTYPE COUPLERS  
3493747 PROCESS OF DEVELOPING A HEAT CREATED IMAGE IN DIAZOTYPE MATERIALS BY EXPOSURE TO GASEOUS ALKALI  
3660581 THERMALLY DEVELOPABLE DIAZOTYPE PRINTING PAPER AND COMPOSITION THEREFOR  
3715213 DIAZO-TYPE MULTICOLOR REPRODUCTION  
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