Abstract: The present invention relates to a photosensitive resin composition having high sensitivity, high bending resistance for the cured film, and high long-term reliability for an organic EL display device in which the cured film is used. The present invention is a photosensitive resin composition containing an alkali-soluble resin (a), a phenolic resin (b) having a halogen atom, and a photosensitive compound (c).

Abstract: Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise that comprise a surface agent of the Formula (I). where A and B are each independently hydrogen, optionally substituted alkyl or optionally substituted aryl; X and Y are each independently hydrogen, optionally substituted alkyl or optionally substituted carbocyclic aryl; and n is a positive integer. Preferred coating compositions can provide improved pattern collapse margin of an overcoated photoresist layer.

Abstract: An object of the invention is to provide a photosensitive laminate in which two or more layers can be collectively patterned, a transfer material, a patterned photosensitive laminate, a method for manufacturing the patterned photosensitive laminate, a touch panel, and an image display device. According to the invention, there are provided a photosensitive laminate in which a first resin layer, an interlayer, and a second resin layer are laminated on a support in this order, at least one of the first resin layer or the second resin layer includes 20 mass % or greater of inorganic particles, and exposure sensitivity of the second resin layer is higher than that of the first resin layer, a transfer material, a patterned photosensitive laminate, a method for manufacturing the patterned photosensitive laminate, a touch panel, and an image display device.

Abstract: The present invention provides a polyester film wherein an adhesive layer including a thermoplastic elastomer including a monovinyl substituted aromatic hydrocarbon and a conjugated diene, a compatibilizer having a glass transition temperature of 35 to 150° C., and a polyester resin having a glass transition temperature of 35 to 150° C. and a carboxyl group content of 10 to 100 mg KOH/g is laminated on a polyester substrate.

Abstract: A lithographic printing plate precursor comprising a hydrophilic support, an alkali-soluble layer and provided on the alkali-soluble layer a recording layer which contains an infrared ray absorbent, an alkali-soluble resin and an inhibitor of inhibiting the alkali-soluble resin from dissolving in an alkali aqueous developer and increases in the solubility in an alkaline aqueous solution upon irradiation of infrared light, and a developing method of the lithographic printing plate precursor with a non-silicate developer.

Abstract: A positive working lithographic printing plate precursor comprising a lower layer containing a water-insoluble and alkali-soluble resin, and an upper heat-sensitive layer containing a water-insoluble and alkali-soluble resin and an infrared absorbing dye and increasing the solubility in an alkaline aqueous solution by heating, provided in this order on a hydrophilic support, and (a) the upper heat-sensitive layer containing at least two kinds of surface active agents, or (b) the lower layer and upper heat-sensitive layer each containing a surface active agent different from each other.

Abstract: Multi-layer, negative working imageable elements useful as lithographic printing plate precursors are disclosed. The elements contain, in order, a support; an underlayer; and an imageable layer. The imageable layer comprises a negative working imageable composition; and the underlayer is soluble or dispersible in a developer. Elements that can be imaged with ultraviolet or visible radiation and elements that can be imaged with infrared radiation or with heat are disclosed.

Abstract: A positive-working printing plate precursor for wet lithographic printing is disclosed which comprises a support having a hydrophilic surface and a coating comprising a first layer closest to the support, said first layer containing an oleophilic phenolic resin soluble in an aqueous alkaline developer, and a second layer containing an amphyphilic polymer, wherein (a) the second layer is capable of preventing the aqueous alkaline developer from penetrating into the first layer to an extent that substantially no dissolution of unexposed coating occurs upon immersion in the aqueous alkaline developer during a time period t2; (b) and wherein said capability of the second layer of preventing the aqueous alkaline developer from penetrating into the first layer is reduced upon exposure to heat or light to an extent that substantially complete dissolution of exposed coating occurs upon immersion in the aqueous alkaline developer during a time period t1; wherein t2>t1 and t2?t1 is at least 10 seconds; and wherein t

Abstract: The invention provides a negative image-recording material for heat-mode exposure systems, which comprises (A) an IR absorbent including cyanine dye having a substituent that contains an atom having an atomic weight of at least 28 such as halogen atom, or a substituent that contains a non-covalent electron pair such as carbonyl group, (B) a radical generator and (C) a radically-polymerable compound, and which is imagewise exposed to IR rays for image formation thereon.

Abstract: Vesicular images are formed by thermal imaging of imageable layers containing thermally imageable vesicular imaging compositions. The vesicular images can be used as masks for imaging printing plate precursors. In one aspect, a printing plate precursor made up of a flexible substrate; a photosensitive layer that contains a negative working photosensitive composition; an optional barrier layer; and the imageable layer is thermally imaged to produce an integral mask. Blanket exposure through the mask with ultraviolet and/or visible radiation followed by development produces a printing plate. The method is especially suited for the production of flexographic printing plates.

Abstract: 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 includes, together with an electron donating colorless dye, at least an electron accepting compound represented by the following general formula (1). R1 and R2 each independently represents a hydrogen atom, an alkyl group or an aryl group; and Ar is represented by the following general formula (2). In the general formula(2), R11 to R14 each independently represents a hydrogen atom, an alkyl group with 1 to 4 carbon atoms or an aryl group.

Abstract: A planographic printing plate precursor of the present invention includes a hydrophilic support, and a lower layer and an image recording layer disposed on the hydrophilic support in this order. The lower layer includes a water-insoluble and alkali-soluble resin, and wherein the image recording layer includes a novolak type phenolic resin containing phenol as a structural unit thereof and a light-to-heat conversion agent, and exhibits increased solubility in an alkaline aqueous solution when exposed to an infrared laser.

Abstract: Multi-layer, positive working, thermally sensitive imageable elements, useful as lithographic printing plate precursors, are disclosed. The elements comprises a substrate, an underlayer over the substrate, and a top layer over the underlayer. The top layer comprises polymeric material, which is a solvent soluble novolac resin or a derivative thereof. The polymeric material is a (a) novolac that has a weight average molecular weight of at least 10,000, a derivative thereof functionalized with polar groups, or a derivative thereof functionalized with quadruple hydrogen bonding entities; (b) a solvent soluble m-cresol/p-cresol novolac resins that comprises at least 10 mol % p-cresol and has a weight average molecular weight of at least 8,000, a derivative thereof functionalized with polar groups, or a derivative thereof functionalized with quadruple hydrogen bonding entities; or (c) a mixture thereof. The imageable elements have increased scuff resistance and are thus less susceptible to damage during handling.

Abstract: A material for making an electroconductive pattern, the material comprising a support and a light-exposure differentiable element, characterized in that the light-exposure differentiable element comprises an outermost layer containing a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene, and optionally a second layer contiguous with the outermost layer; and wherein the outermost layer and/or the optional second layer contains a light-sensitive component capable upon exposure of changing the removability of the exposed parts of the outermost layer relative to the unexposed parts of the outermost layer; and a method of making an electroconductive pattern on a support using the material for making an electroconductive pattern.

Abstract: Polymeric acetal resins useful in lithographic printing are disclosed. The polymeric acetal resin contains units (A), (B), (C), (D), and (E). Unit (A) is a vinyl alcohol unit. Unit; (B) is a polyvinyl acetal unit containing an R group, where R is hydrogen, an aliphatic group, an aromatic group, or an arylaliphatic group. Unit (C) is a vinyl carboxylate unit. Unit (D) is an acidic vinyl acetal unit and/or a residue of an acidic vinyl monomer. Unit (E) is a free radical polymerization-inhibiting vinyl acetal unit and/or a free radical polymerization-inhibiting vinyl alcohol ester unit. The resin comprises about 10 to about 60 mol % of unit (A), about 5 to about 60 mol % of unit (B), about 0.3 to about 30 mol % of unit (C), about 1 to about 40 mol % of unit (D), and about 0.01 to about 2 mol % of unit (E).

Abstract: Multi-layer, negative working imageable elements useful as lithographic printing plate precursors are disclosed. The elements contain, in order, a support; an underlayer; and an imageable layer. The imageable layer comprises a negative working imageable composition; and the underlayer is soluble or dispersible in a developer. Elements that can be imaged with ultraviolet or visible radiation and elements that can be imaged with infrared radiation or with heat are disclosed.

Abstract: A base material for a lithographic printing plate comprising a support, a hydrophilic organic polymer compound that is chemically bonded to a surface of the support, and an ionic compound that is ionically bonded to the hydrophilic organic polymer compound; and a lithographic printing plate comprising the base material and an image forming layer provided thereon.

Abstract: An image forming material having a support having disposed in an order thereon an acid-crosslinkable layer, which contains a compound that generates an acid by light or heat and a compound crosslinkable by the acid generated and whose alkali solubility is lowered by the crosslinking, and a radical-polymerizable layer, which contains a compound that generates a radical by light or heat and a compound capable of undergoing a radical polymerization and whose alkali solubility is lowered by the polymerization.

Abstract: The present invention provides a negative-working presensitized plate useful for preparing a lithographic printing plate having a negative-working photosensitive layer on an aluminum substrate, which comprises an intermediate layer comprising a compound having at least one diazonium group and molecular weight of 1000 or less formed between said photosensitive layer and said aluminum substrate. The lithographic printing plate prepared from the negative-working presensitized plate of the present invention shows excellent adhesiveness between a substrate and a photosensitive layer and does not cause contamination in non-imaging areas during printing operation, while maintaining high sensitivity, sensitive range and performance of the photosensitive layer.

Abstract: A material for making an electroconductive pattern, the material comprising a support and a light-exposure differentiable element, characterized in that the light-exposure differentiable element comprises an outermost layer containing a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene, and optionally a second layer contiguous with the outermost layer; and wherein the outermost layer and/or the optional second layer contains a light-sensitive component capable upon exposure of changing the removability of the exposed parts of the outermost layer relative to the unexposed parts of the outermost layer; and a method of making an electroconductive pattern on a support using the material for making an electroconductive pattern.

Abstract: There is described a method of preparing a lithographic plate which comprises coating on a lithographic support having a hydrophilic surface, a layer of a heat sensitive coating, digitally imaging the coating, then processing the plate with water to remove the unexposed areas of the coating to reveal the hydrophilic surface of the plate and to leave an ink receptive image, wherein the heat sensitive coating comprises a diazo salt of formula (I): wherein R1 is an anion, R2 and R3 represent optional substitution, R4 is —N— or —S— and R5 is a group which, after exposure of the plate, renders the residue of the diazo salt oleophilic and fount solution insoluble.

Abstract: A method of forming a diffusion barrier on an article of a polymer blend of (i) a high surface energy polymer and (ii) a low surface energy polymer. Most commonly the low surface energy polymer is an organosilicon polymer, as a polysilane or a polysiloxane. The surface of the article is exposed to ozone and ultraviolet radiation to form a diffusion barrier.

Abstract: An ultraviolet light absorbing material that resists blooming and migration is made up of a polyurethane or polyurea polymer and an amide functional ultraviolet light absorbing compound, wherein the polymer and the amide functional ultraviolet light absorbing compound are hydrogen bonded to one another. Polymeric films that contain a polymeric matrix and the ultraviolet light absorbing material are useful as the top layer in multilayer constructions such as retroreflective sheetings and conformable marking sheets.

Abstract: A lithographic printing plate precursor which comprises a metal support having provided thereon a heat-insulating layer, a metal layer having a hydrophilic surface, and a lipophilic layer which is abraded by heating or whose solubility to alkali is transformed by heating, in this order from the support.

Abstract: A method of forming a diffusion barrier on an article of a polymer blend of (i) a high surface energy polymer and (ii) a low surface energy polymer. Most commonly the low surface energy polymer is an organosilicon polymer, as a polysilane or a polysiloxane. The surface of the article is exposed to ozone and ultraviolet radiation to form a diffusion barrier.

Abstract: A photosensitive lithographic printing plate has an aluminum support anodized and treated with an aqueous solution of polyvinylphosphonic acid adjusted to pH 1.5 or below to ensure no deterioration of impression capacity and prevention of the water-ink balance scum in the lithographic printing plate made therefrom even when a cleaner is used in the course of printing.

Abstract: A method of forming a diffusion barrier on an article of a polymer blend of (i) a high surface energy polymer and (ii) a low surface energy polymer. Most commonly the low surface energy polymer is an organosilicon polymer, as a polysilane or a polysiloxane. The surface of the article is exposed to ozone and ultraviolet radiation to form a diffusion barrier.

Abstract: The application discloses a transparent, biaxially oriented polyester film having a base layer at least 80% by weight of which is composed of a thermoplastic polyester, and having at least one outer layer, wherein the outer layer is composed of a copolymer or of a mixture of polymers which comprises at least 35 mol % of ethylene 2,6-naphthalate units, up to 44 mol % of ethylene terephthalate units, and from 1 to 20 mol % of ethylene isophthalate units, and also up to 20 mol % of a sulfo-substituted dicarboxylic acid and, if desired, up to 10 mol % of units from aliphatic, including cycloaliphatic, or aromatic diols and/or dicarboxylic acids (based in each case on the total content of dicarboxylic acid or diol).

Abstract: The present invention relates to a recording material having a substrate and a negative-working, radiation-sensitive layer which contains a diazonium salt, metal-free colored pigments dispersed in an organic polymeric binder, transparent spacer pigments having a pore volume of more than 1.0 ml/g and a polymeric binder. The predispersal of the colored pigments is achieved by milling with an organic polymeric binder containing hydroxyl groups, some or all of which have been reacted with a di- or polycarboxylic anhydride so that the binder has an acid number of from 20 to 200. Printing plates in which the printing parts have a clearly visible contrast relative to the substrate can be produced from the recording material.

Abstract: According to the present invention there is provided a method for making lithographic printing plates including the following steps:a) preparing a light sensitive imaging element having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution and a top layer on the same side of the lithographic base as the first layer which top layer is unpenetrable for an alkaline developer containing SiO.sub.2 as silicate;b) exposing imagewise said light sensitive imaging element to actinic light;c) developing said imagewise exposed light sensitive imaging element with said alkaline developer so that the exposed areas of the top layer and the underlying areas of the first layer are dissolved and the unexposed areas of the first layer remain undissolved characterized in that said top layer includes a diazonium salt and for at least 20% of its weight one or more non-proteinic hydrophilic film-forming polymers.

Abstract: Disclosed is a heat-sensitive recording material comprising a support comprised of a substrate and a thermoplastic resin layer formed thereon, and a heat-sensitive recording layer disposed on the support and containing a diazonium salt compound capable of being decomposed by ultraviolet light, wherein the thermoplastic resin layer is formed by melt extrusion and wherein the thermoplastic resin layer contains a fluorescent brightening agent and a white pigment. In the heat-sensitive recording material, the fluorescent brightening agent is preferably a compound represented by the following structural formula (I):Structural Formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represent a hydrogen atom, or a substituent group or a substituent atom.

Abstract: A diazotype reproduction material is a fibrous paper base having at least one overcoat, which is an acidic diazotype layer and a layer strata below the overcoat containing an anionic compound to minimize deep penetration of diazotype diazonium salts.

Abstract: Disclosed is an image forming material comprising a metal support having an anodization layer on its surface, and provided on the anodization layer, a light sensitive layer containing a first compound capable of generating an acid on exposure of an actinic light, a second compound having a group cross-linking by an acid or a third compound having a chemical bond capable of being decomposed by an acid, and an infrared absorber, wherein the thickness of the anodization layer is 10 to 60 mg/dm.sup.2.

Abstract: A method for directly imaging a lithographic printing surface using infrared radiation without the requirement of pre- or post-UV-light exposure, or heat treatment employs a printing plate which contains a support with a hydrophilic surface overcoated with an imaging layer. The imaging layer contains at least one polymer having bonded pendent groups which are hydroxy, carboxylic acid, tert-butyl-oxycarbonyl, sulfonamide, amide, nitrile, urea, or combinations thereof; as well as an infrared absorbing compound. The imaging layer may contain a second polymer which has bonded pendent groups which are 1,2-napthoquinone diazide, hydroxy, carboxylic acid, sulfonamide, hydroxymethyl amide, alkoxymethyl amide, nitrile, maleimide, urea, or combinations thereof. The imaging layer may also contain a visible absorption dye, a solubility inhibiting agent, or both.

Abstract: A heat-sensitive recording material having a support and a heat-sensitive recording layer provided thereon. The heat-sensitive recording layer contains a diazonium salt compound and a coupler which reacts with the diazonium salt compound upon heating to form a color. The heat-sensitive recording layer contains a compound of the following formula (I): ##STR1## wherein R represents a member selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, and an aryl group; X represents a member selected from the group consisting of --COOR.sup.1, --OCOR.sup.--1, --CONR.sup.1 R.sup.2, and --NR.sup.2 COR.sup.1 ; R.sup.1 represents an alkyl group or an aryl group, R.sup.2 represents a member selected from the group consisting of a hydrogen atom, an alkyl group, and an aryl group; n represents an integer from 1 to 5.

Abstract: A radiation sensitive material comprises particles including a water-insoluble heat-softenable core surrounded by a shell which is soluble or swellable in aqueous medium. The material also includes a radiation sensitive component which, on exposure to radiation, causes the solubility characteristics of the material to change. The material may be positive- or negative-working and may be coated onto a substrate from aqueous media to form a radiation sensitive plate which, after image-wise exposure, can be developed in aqueous media and then heated to cause the particles to coalesce and form a durable printing image.

Abstract: A method for electrophotographically forming a Braun tube's fluorescent layer coats conductive and photoconductive layers on the internal surface of a Braun tube's panel. The photoconductive layer is formed of a water soluble photoconductive liquid including a water soluble binder, allowing a part of the photoconductive layer to be selectively exposed to a visible ray. The photoresist of the above photoconductive liquid is substituted with dye, which can be processed through general exposure and solvent, allowing the fluorescent layer to be formed on a Braun tube under the same conditions as a typical Braun tube production process without darkroom processing.

Abstract: According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of:(1) image-wise exposing an imaging element having on a plastic film support in the order given (i) a uniform ink-repellant layer comprising a cross-linked hydrophilic binder and (ii) a photosensitive layer comprising a diazonium salt or a diazo resin;(2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and supplying an aqueous dampening liquid and/or ink to said photosensitive layer.

Abstract: According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of:(1) image-wise exposing an imaging element having of a flexible film support in the order given (i) a uniform ink-repellant layer comprising a cross-linked hydrophilic binder and (ii) a photosensitive layer comprising a diazonium salt or a diazo resin;(2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and wiping it with a disposable absorbing tissue moistened with water or fountain solution.

Abstract: Proposed is a novel undercoating composition used in the photolithographic patterning of a photoresist layer by intervening between the substrate surface and the photoresist layer to decrease the adverse influences of the reflecting light from the substrate surface. The undercoating composition of the invention comprises (a) a melamine compound substituted by methylol groups and/or alkoxymethyl groups and (b) a polyhydroxy benzophenone compound, diphenyl sulfone compound or diphenyl sulfoxide compound, optionally, with admixture of (c) an alkali-insoluble resin of a (meth)acrylic acid ester.

Abstract: A planarizing technique comprising: coating a topography overlying a substrate with a planarizing resist layer; softbaking the planarizing resist layer in the presence of a silicon-containing vapor or liquid; coating the planarizing resist layer with an imaging resist layer; softbaking the imaging resist; selectively exposing the imaging resist layer to light; developing the imaging resist layer; and etching the planarizing layer. The planarizing layer may comprise novolacs and other organic polymers used conventionally in lithographic processes. The planarizing layer may further comprise any organic acid moiety that is compatible with the solvent used to dissolve the resin. In particular, the acid moiety is indole-3-carboxylic acid. In another aspect, the invention comprises a silylated planarizing resist.

Abstract: The present invention provides an imaging element comprising on a hydrophilic base a light-sensitive layer containing polyvinyl alcohol hydrolyzed to at least an extent of 95% by weight, a cationic surfactant and a diazo resin and/or a diazonium salt characterized in that the light-sensitive layer comprises metal-free phthalocyanine.The present invention also provides a method for obtaining an imaging element as defined in any of the claims 1 to 6 bypreparing a dispersion of metal-free phthalocyanine in water in the presence of a cationic surfactant in an amount ranging from 0.24 g/l to 24 g/l;preparing a light-sensitive composition by mixing said dispersion, polyvinyl alcohol hydrolyzed to at least an extent of 95% by weight and a diazo resin and/or a diazonium salt andcoating said light-sensitive composition on a hydrophilic base, characterized in that said dispersion comprises polyvinyl alcohol hydrolyzed to at least an extent of 95% by weight in an amount ranging from 4.0 g/l to 200 g/l.

Abstract: The present invention provides an imaging element comprising on a support a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and having been hardened with a hydrolysed tetraalkyl orthosilicate and a light sensitive layer containing a diazo resin and/or a diazonium salt characterized in that the light sensitive layer comprises at least one diazo resin or diazonium salt containing or being a diazonium salt of p-aminodiphenylamine containing as substituent an alkyl or alkoxy group and the weight percentage of said diazonium salt(s) and/or diazo resin(s) containing or being a diazonium salt of p-aminodiphenylamine containing as substituent an alkyl or alkoxy group versus the total amount of diazo resin and/or diazonium salt ranges from 22 to 40%.

Abstract: The present invention provides an imaging element comprising on a support in the order given a coated composition of at least two hydrophilic layers being in water permeable contact with each other and each containing a hydrophilic (co)polymer or (co)polymer mixture and having been hardened with a hydrolyzed tetraalkyl orthosilicate and a light sensitive layer containing a diazo resin or a diazonium salt characterized in that the ratio by weight in the top layer of said package of said hydrophilic (co)polymer or (co)polymer mixture versus said hydrolyzed tetraalkyl orthosilicate (expressed as silicon dioxide) is at least 1.1 and the ratio by weight in an underlying layer of said package of said hydrophilic (co)polymer or (co)polymer mixture versus said hydrolyzed tetraalkyl orthosilicate (expressed as silicon dioxide) is not higher than 0.9.

Abstract: The present invention provides a lithographic base comprising on a hydrophobic support a packet of subbing layers contiguous to a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and being hardened with a hydrolysed tetraalkyl orthosilicate crosslinking agent characterized in that said packet of subbing layers contains as undermost layer a layer comprising, a polymer latex having hydrophilic functionality and as uppermost layer a layer comprising a hydrophilic binder and silica in a weight ratio of the hydrophilic binder to silica of less than 1.

Abstract: A mechanically and/or electrochemically grained and optionally anodized base material composed of aluminum or its alloys, to which a hydrophilic layer of at least one polymer containing basic and acidic groups is applied. This layer is followed by a further hydrophilic layer which contains at least one compound containing at least one phosphono group. In addition, the invention relates to a method of producing said carrier material and to photosensitive recording material for offset printing plates produced therewith.

Abstract: A negative-type photosensitive lithographic printing plate having a photosensitive layer comprising upper and lower layers, each layer containing a photosensitive diazo resin, on a support having a hydrophilic surface. The concentration of the diazo resin in the upper layer is not more than 1/3 of the concentration of the diazo resin in the lower layer, the thickness of the upper layer is not less than three times the thickness of the lower layer, and the upper layer contains an oleophilic non-photosensitive resin with a weight average molecular weight ranging from 10,000 to 150,000. The lithographic printing plate has a very short exposure time, may be used with projection exposure systems and allows for the use of known developers and automated developer systems.

Abstract: A method for engraving and/or etching comprising the steps of: (a) a process for exposing, to light, a layer of a water-soluble resin composition of a laminated photo-sensitive film which comprises a supporting sheet, a image mask-protection layer peelablly adhered to the supporting sheet and a layer of a water-soluble resin composition having photocrosslinkability to thus cause crosslinking of the exposed area of the resin layer to thereby form a predetermined pattern on the resin layer; (b) a process for dissolving out the non-crosslinked portion of the layer of the water-soluble photo-sensitive resin composition by developing the layer with water to thus from an image-carrying mask which is constituted from the crosslinked area of the photo-sensitive resin composition remaining on the image mask-protection layer; (c) a process for adhering the photo-sensitive laminate film on which the images are formed to the surface of a material to be processed; (d) a process for peeling off the supporting sheet from th

Abstract: A radiation sensitive material comprises particles including a water-insoluble heat-softenable core surrounded by a shell which is soluble or swellable in aqueous medium. The material also includes a radiation sensitive component which, on exposure to radiation, causes the solubility characteristics of the material to change. The material may be positive- or negative-working and may be coated onto a substrate from aqueous media to form a radiation sensitive plate which, after image-wise exposure, can be developed in aqueous media and then heated to cause the particles to coalesce and form a durable printing image.

Abstract: According to the present invention the storage stability of a diazo based imaging element can be improved by controlling the amount of free water in the imaging element. Thus the present invention provides an imaging element comprising on a support a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and having been hardened with a hydrolyzed tetraalkyl orthosilicate and a light sensitive layer containing a diazo resin or a diazonium salt characterized in that the total amount of free water in said imaging element satisfies the following formula (I):FW (g/m.sup.2).ltoreq.0.0043 * WS (g/m.sup.2)+0.46 (g/m.sup.2) (I)wherein FW represents the amount of free water and WS represents the weight of the support of the imaging element.