Abstract: A lithographic printing plate precursor is disclosed including a support and a coating comprising (i) a photopolymerisable layer including a polymerisable compound and an optionally substituted trihaloalkyl sulfone photoinitiator, and (ii) a toplayer provided above the photopolymerisable layer; characterized in that the toplayer includes an infrared absorbing dye capable of forming a print-out image upon exposure to heat and/or IR radiation.

Abstract: A titanium black dispersion includes titanium black particles, a dispersant, and an organic solvent. When the titanium black dispersion is for a wafer level lens, 90% or more of dispersed objects that consist of the titanium black particles have particle diameters of 30 nm or less, or dispersed objects including the titanium black particles contains Si atoms and the content ratio of Si atoms to Ti atoms (Si/Ti) in the dispersed objects is 0.05 or higher. When the titanium black dispersion is used for formation of a light-shielding film that is provided on one side of a silicon substrate having an image pickup device section on the other side, and that shields against infrared light, 90% or more of dispersed objects that consist of the titanium black particles have particle diameters of 30 nm or less.

Abstract: A method of pulsed laser intrinsic marking can provide a unique identifier to detect tampering or counterfeiting.

Abstract: A method for fabricating a disc stamper is provided. First, a substrate is provided. Next, a layer of a coatable inorganic material is coated on the substrate, wherein the coatable inorganic material is an oxide, in which the chemical element constitution is more than one element selected from the group consisting of Te, Al, Zr, and Ti. Next, a laser beam is utilized to perform direct write on the layer of the coatable inorganic material to form a relief pattern. Thereafter, a metal layer is electroplated on the relief pattern. Next, the metal layer is separated from the relief pattern. The layer of the coatable inorganic material is utilized to form the relief pattern, so that it is more compatibility to equipment apparatus and lower cost in contrast with sputtered PTM process.

Abstract: The present invention is directed to a negative photoresist composition which mainly is composed of a) a polyimide having pendant carboxyl groups, wherein a portion of the carboxyl groups reacted with glycidyl (meth)acrylate monomers to form covalent bonds. The photoresist composition further contains b) monomers having a tertiary amino group and a C?C double bond, which form ionic bonds with the remaining hydroxyl groups of the polyimide. The photoresist composition further contains c) a photoinitiator which is also called photosensitizer. The components a) to c) are all dissolved in a solvent.

Abstract: A photosensitive lithographic printing plate comprises a photosensitive layer and a protective layer formed in this order on a support, wherein the photosensitive layer has a maximum peak of spectral sensitivity within a wavelength range ranging from 390 to 430 nm, the minimum exposure for the photosensitive lithographic printing plate for image formation at a wavelength of 410 nm (S410) is at most 100 ?J/cm2, and the relation between the minimum exposure for image formation at a wavelength of 450 nm (S450) and the minimum exposure for image formation at a wavelength of 410 nm (S410) is 0<S410/S450?0.1.

Abstract: The invention concerns the use of a film-forming titanium dioxide dispersion for cleaning and disinfecting surfaces exposed to light, by depositing a film of titanium dioxide nanoparticles on said surfaces, the continuous phase of said dispersion comprising water and/or at least an alcohol with boiling point at less than 120° C., said dispersion having, when it comprises water, a pH different by at least 1 unit of the value of the titanium dioxide isoelectric pH in said dispersion. The invention also concerns a film-forming titanium dioxide dispersion further comprises a film-forming polymer. The invention further concerns a method for cleaning and disinfecting surfaces exposed to light which consists in depositing and then drying on said surfaces a titanium oxide film-forming dispersion.

Abstract: A photosensitive composition comprising (i) a sensitizing dye represented by the following formula (I), (II) or (III) defined in the specification, (ii) a titanocene compound and (iii) a compound of undergoing a reaction with at least one of a radical and an acid to change at least one of its physical and chemical properties and maintaining the changed physical or chemical property, and a lithographic printing plate having a photosensitive layer comprising the photosensitive composition.

Abstract: A negative working photosensitive lithographic printing plate is disclosed, which comprises a support having thereon at least one photosensitive layer containing a polymeric binder having repeating units represented by formula (I): wherein R1 represents a hydrogen atom or a methyl group; R2 represents a hydrocarbon group which has an alicyclic structure and has 3 to 30 carbon atoms and a valence of n+1; A represents an oxygen atom or —NR3—, wherein R3 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms; and n is an integer of 1 to 5. The negative working photosensitive lithographic printing plate can attain both high productivity and high printing durability. It is especially suitable for drawing with laser light.

Abstract: A method of producing a pattern-formed structure, comprising: preparing a substrate for a pattern-formed structure having a characteristic-modifiable layer whose characteristic at a surface thereof can be modified by the action of photocatalyst; preparing a photocatalyst-containing-layer side substrate having a photocatalyst-containing layer formed on a base material, the photocatalyst-containing layer containing photocatalyst, arranging the substrate for a pattern-formed structure and the photocatalyst-containing-Iayer side substrate such that the characteristic-modifiable layer faces the photocatalyst-containing layer with a clearance of no larger than 200 &mgr;m therebetween; and irradiating energy to the characteristic-modifiable layer from a predetermined direction, and modifying characteristic of a surface of the characteristic-modifiable layer, thereby forming a pattern at the characteristic-modifiable layer.

Abstract: A photosensitive lithographic printing plate comprises a photosensitive layer and a protective layer formed in this order on a support, wherein the photosensitive layer has a maximum peak of spectral sensitivity within a wavelength range ranging from 390 to 430 nm, the minimum exposure for the photosensitive lithographic printing plate for image formation at a wavelength of 410 nm (S410) is at most 100 &mgr;J/cm2, and the relation between the minimum exposure for image formation at a wavelength of 450 nm (S450) and the minimum exposure for image formation at a wavelength of 410 nm (S410) is 0<S410/S450≦0.1.

Abstract: A lithographic printing plate precursor comprising a water-resistant support having provided thereon a light-sensitive layer containing fine titanium oxide grains doped with a metallic ion which absorb a visible ray and a complex composed of an organo-metallic polymer which is formed by a hydrolysis polymerization condensation reaction of a compound represented by formula (I) shown below and an organic polymer which has a group capable of forming a hydrogen bond with the organo-metallic polymer: (R0)nM(Y)x−n  (I) wherein R0 represents a hydrogen atom, a hydrocarbon group or a heterocyclic group; Y represents a reactive group; M represents a metallic atom having from 3 to 6 valences; x represents a valence of the metallic atom M; and n represents 0, 1, 2, 3, 4, 5 or 6, provided that the balance of x−n is not less than 2. A method for the preparation of a lithographic printing plate using the lithographic printing plate precursor is also disclosed.

Abstract: A photosensitive image-recording material comprising a support having provided thereon a photosensitive layer and an oxygen-cutoff layer (protective layer).

Abstract: The present invention provides an initiator system including an infrared-absorbing compound that exhibits an electronic transition band in the near-infrared region, an initiator, and a metallocene compound. Upon exposure to infrared radiation, the initiator system is capable of producing radicals sufficient to initiate a photopolymerization reaction. Suitable infrared-absorbing compounds include indocyanine dyes, for example. Trihalomethyl triazine compounds and onium compounds are suitable initiators. Suitable metallocene compounds include ferrocenes and titanocenes. The present invention also provides an infrared-sensitive composition including an ethylenically unsaturated polymerizable component, an infrared-absorbing compound that exhibits an electronic transition band in the near-infrared region, an initiator, and a metallocene compound. The infrared-sensitive composition provides improved photospeed and sensitivity in some embodiments.

Abstract: A visible radiation sensitive composition is disclosed. The composition comprises at least one ethylenically unsaturated monomer capable of free radical initiated addition polymerization; optionally, at least one binder; and a photoinitiator system comprising a coinitiator and a cyanopyridone sensitizer. The coinitiator preferably comprises a metallocene and an onium compound.

Abstract: A process for producing a polymer compound having a double bond in a side chain, wherein a functional group represented by the following formula (1) is subjected to an elimination reaction to form the polymer compound which includes another functional group having the double bond in the side chain thereof represented by the following formula (2): 1

Abstract: The present invention provides a PS plate for use in making a lithographic printing plate, comprising an aluminum substrate provided thereon with a light-sensitive layer comprising a polyurethane resin binder, an addition polymerizable ethylenically unsaturated bond-containing compound and a photopolymerization initiator, wherein the polyurethane resin binder is one synthesized from at least the following compounds (i) to (iv): (i) at least one di-isocyanate compound; (ii) at least one diol compound having at least one carboxyl group; (iii) at least one diol compound whose logP value is less than 0; and (iv) at least one diol compound whose logP value is higher than 0.

Abstract: A planographic printing plate precursor comprising: an aluminum substrate which has been subjected to a roughening treatment and an anodizing treatment; and a photosensitive layer which provided on a surface of said substrate, and which contains an infrared absorbing agent and a water-insoluble and alkali aqueous solution-soluble polymer compound, and whose solubility in an alkali developing solution varies by infrared laser exposure, wherein said substrate is obtained by electrochemically roughening an aluminum alloy plate which contains a trace amount of certain elements to an aluminum alloy of high purity.

Abstract: A photopolymerizable lithographic printing plate having a photosensitive layer containing a photopolymerization initiator, a compound having an ethylenically unsaturated double bond and a polymer binder, and a protective layer provided in this order on a hydrophilic support, wherein an amount of the compound having an ethylenically unsaturated double bond in the photosensitive layer is from 30% to 70% by weight, and oxygen permeability of the protective layer is from 1×10−15 to 1×10−1 [cm3(STP)·cm/cm2·sec·cmHg].

Abstract: A method for treating a photosensitive lithographic printing plate, which comprises exposing the photosensitive lithographic printing plate to laser light, developing with a developer containing an alkali metal silicate and then carrying out post-exposure treatment, said photosensitive lithographic printing plate being prepared by forming a photopolymerizable photosensitive layer having a film thickness of from 1.2 to 4 g/m2 and further forming a protective layer having a film thickness of from 2 to 8 g/m2 on a support having a centerline average height (Ra) of at least 0.35 &mgr;m.

Abstract: Disclosed is a light sensitive composition containing a compound represented by the following formula (1): formula (1) 1

Abstract: A plate-making method of a printing plate comprising exposing a printing plate precursor having a photosensitive layer comprising a photopolymerizable composition containing (i) a crosslinking agent having two ethylenic polymerizable groups and (ii) a crosslinking agent having three or more ethylenic polymerizable groups, and development processing the exposed printing plate precursor with an alkali developer having a pH of not more than 12.5.

Abstract: A visible radiation sensitive composition is disclosed. The composition comprises at least one ethylenically unsaturated monomer capable of free radical initiated addition polymerization; optionally, at least one binder; and a photoinitiator system comprising a coinitiator and a cyanopyridone sensitizer. The coinitiator preferably comprises a metallocene and an onium compound.

Abstract: Disclosed is a printing plate precursor comprising a substrate and provided thereon, a layer containing a light heat conversion material, wherein the light heat conversion material does not substantially change in nature when allowed to stand in a temperature atmosphere of 400 to 500° C. for 10 minutes or a printing plate precursor comprising a substrate and provided thereon, a hydrophilic layer which is porous, wherein the hydrophilic layer contains a carbon atom-free material in an amount of not less than 91% by weight.

Abstract: A photosensitive composition comprising (i) a sensitizing dye represented by the following formula (I), (II) or (III) defined in the specification, (ii) a titanocene compound and (iii) a compound of undergoing a reaction with at least one of a radical and an acid to change at least one of its physical and chemical properties and maintaining the changed physical or chemical property, and a lithographic printing plate having a photosensitive layer comprising the photosensitive composition.

Abstract: A method of producing a lithographic printing plate comprising a step of providing on a support a layer has a hydrophobic surface and comprises an oxidizable material and a reducible material, a step of irradiating imagewise with active rays in the presence of a photocatalytic metal compound, wherein the oxidizable material in the irradiated area is decomposed imagewise to convert the layer surface in the irradiated area surface into hydrophilic property and form an imagewise distribution of hydrophilic areas and hydrophobic areas: and a lithographic printing plate precursor used in the aforesaid method. In accordance with this method, no development-processing is required for plate-making, the plate-making operations can be carried out as the plate precursor is mounted on a printing press, and the lithographic printing plate made can have an excellent press life and hardly generates staining.

Abstract: A photocatalyst composite is provided which comprise a substrate having particles of a photocatalyst such as titanium oxide, adhered thereon via a less degradative adhesive such as a fluorinated polymer comprising a copolymer of a vinyl ester and/or vinyl ether and a fluoroolefin, or a silicon based polymer or cement. Furthermore, a process for producing the photocatalyst composite and a coating composition containing the photocatalyst composite are provided.

Abstract: A photosensitive lithographic printing plate comprising: a support; and a photosensitive layer, wherein the photosensitive layer comprises: a polyurethane resin binder comprising an aliphatic cyclic structure which has a carboxyl group as a substituent directly or indirectly attached to the structure; or a polyvinyl alcohol resin binder modified with an acetal skeleton comprising an aliphatic cyclic structure.

Abstract: A planographic printing plate precursor comprising:

Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.

Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.

Abstract: Multi-functional materials are classified into those which have a photocatalytic layer with a photocatalytic function directly disposed on the surface of a base and those which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer has a structure in which fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.

Abstract: A method for the preparation of a lithographic printing plate comprises exposing imagewise a lithographic printing plate precursor comprising a support having provided thereon a light-sensitive layer containing fine anatase-type titanium oxide grains and a complex composed of an organo-metallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group to an ultraviolet ray to render a surface of the light-sensitive layer hydrophilic in the exposed area. A lithographic printing plate prepared according to the method is also disclosed.

Abstract: A silver halide imaging element is disclosed that is capable of providing a sharp image with silver halide grains still present following imagewise exposure and development. This is achieved by choosing a dispersing medium for the silver halide grains comprised of an organic vehicle and, dispersed therein, titanium dioxide particles having an average size of less than 0.1 micrometer accounting for at least 10 percent by weight of the dispersing medium. The elements are useful for optical printing or scan image retrieval without fixing. The elements can be used for providing black-and-white photographic images, radiographic images or dye images.

Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through an amorphous binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles. A lower layer of the photocatalytic layer is embedded in the binder layer such that an intermediate layer is formed between the binder layer and the photocatalytic layer, the intermediate layer including components of the binder and photocatalytic layers in varying concentrations therethrough.

Abstract: A photocatalytic functional material having an excellent photocatalytic activity even by a low temperature heat treatment and having a high mechanical strength of the surface. The photocatalytic functional material of the present invention comprises a surface layer (a photocatalytic functional layer) containing a photocatalyst, an electron trapping metal and a photodegradation-resistant matrix. Though the major proportion of the photocatalyst (TiO2 particles, and the like) in the photocatalytic functional layer are covered with the photodegradation-resistant matrix (a thermosetting resin, and the like), the electron-trapping metal effectively traps the electrons generated by the photocatalytic reaction, retains positive holes and generates active oxygen species, so that the photocatalytic function such as deodorant and antimicrobial activities can be fully exhibited.

Abstract: A photosensitive resin composition for photoresist which is highly sensitive and can directly form an image using a laser is disclosed. Said composition comprises (A) an unsaturated resin having carboxyl group(s) which is obtained by firstly reacting 0.8 to 1.3 moles of an ethylenic unsaturated monocarboxylic acid with 1 mole of an epoxy group of a homopolymer or copolymer of ethylenic unsaturated monomer having an epoxy group to obtain an unsaturated resin which is then reacted with a dibasic acid anhydride, (B) ethylenic unsaturated compound without epoxy group, and (C) photopolymerization initiator.

Abstract: The present invention provides a visible laser-curable photosensitive composition wherein a photocuring resin having photosensitive group which is crosslinkable or polymerizable upon light exposure, is mixed with a photopolymerization inititor system consisting of a coumarin type pigment of particular structure and a titanocene compound. This composition has an unexpectedly high sensitivity to visible laser.

Abstract: A visible radiation sensitive composition is described which comprises a binder, one or more polymerizable compounds containing at least one polymerizable group, and one or more dyes having an absorption range in the emission range of the radiation source, characterized in that said composition comprises as an initiator an initiator system consisting of a metallocene as a photoinitiator and an onium compound as a coinitiator. The visible radiation sensitive composition shows an increased radiation sensitivity compared to the known radiation sensitive compositions and is especially suitable for recording materials such as printing plates, which can, in particular, also be exposed by means of laser radiation in the visible range.

Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.

Abstract: A silver halide imaging element is disclosed that is capable of providing a sharp image with silver halide grains still present following imagewise exposure and development. This is achieved by choosing a dispersing medium for the silver halide grains comprised of an organic vehicle and, dispersed therein, titanium dioxide particles having an average size of less than 0.1 micrometer accounting for at least 10 percent by weight of the dispersing medium. The elements are useful for optical printing or scan image retrieval without fixing. The elements can be used for providing black-and-white photographic images, radiographic images or dye images.

Abstract: A method of producing a patterned array of features, in particular, gate apertures, in the size range 0.4-0.05 .mu.m using projection lithography and extreme ultraviolet (EUV) radiation. A high energy laser beam is used to vaporize a target material in order to produce a plasma which in turn, produces extreme ultraviolet radiation of a characteristic wavelength of about 13 nm for lithographic applications. The radiation is transmitted by a series of reflective mirrors to a mask which bears the pattern to be printed. The demagnified focused mask pattern is, in turn, transmitted by means of appropriate optics and in a single exposure, to a substrate coated with photoresists designed to be transparent to EUV radiation and also satisfy conventional processing methods.

Abstract: There is described a lithographic plate which comprises a base coated with a photopolymerisable composition which comprises a polymeric binder, at least one free-radically polymerisable ethylenically unsaturated compound and as the photoinitiator combination a metallocene compound, N-phenyl glycine or a substituted N-phenyl glycine or an N-phenyl glycine derivative together with a third component which is a substance which helps in the reaction initiation but also increases the sensitivity of the photopolymerisable composition to a desired region of the spectrum.

Abstract: A light sensitive composition and a manufacturing method of a planographic printing plate employing the same are disclosed, the composition comprising a radical generating agent and a dye represented by the following formula (1), (2) or (3): ##STR1##

Abstract: Multi-functional materials are classified into those which have a photocatalytic layer 2 with a photocatalytic function directly disposed on the surface of a base 1 and those which have a photocatalytic layer 2 with a photocatalytic function disposed on the surface of a base 1 through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer 2 are joined together by a surface energy or solid-state sintering. The photocatalytic layer 2 may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.

Abstract: A photosensitive liquid precursor solution including titanium carboxyketoesters or titanium carboxydiketonates polymerizes upon exposure to ultraviolet radiation. The solution is applied to an integrated circuit substrate, masked, and exposed to ultraviolet radiation to pattern the liquid precursor film. Unexposed portions of the film are removed in a developer solution including alcohol and water. The remaining portion of the film constitutes a pattern that may be annealed to form a metal oxide.

Abstract: A photopolymerizable composition for a photosensitive lithographic printing plate, comprising (A) addition-polymerizable ethylenically unsaturated bond-containing monomers, (B) a photopolymerization initiator system and (C) a polymer binder having carboxyl groups in its molecule, wherein the addition-polymerizable ethylenically unsaturated bond-containing monomers (A) contain a specific monomer which is a phosphoric acid ester compound (A-1) having at least one (meth)acryloyl group and/or a compound (A-2) of the following formula ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, X is a C.sub.1-6 alkylene group which may be branched and may be substituted by halogen, and m is an integer of at least 2, and the polymer binder (C) having carboxyl groups in its molecule, is a compound having at least a part of the carboxyl groups reacted with an alicyclic epoxy group-containing unsaturated compound.

Abstract: A photopolymerizable composition comprising an addition polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator system, wherein the photopolymerization initiator system comprises:(a) a titanocene compound, and(b) at least one coumarin compound of the following formula (I): ##STR1## wherein (i) each of R.sup.1, R.sup.2 and R.sup.5 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, each of R.sup.3 and R.sup.4 is an alkyl group, provided that at least one of R.sup.3 and R.sup.4 is a C.sub.4-16 alkyl group, or (ii) R.sup.1 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, and at least one set of R.sup.2 and R.sup.3, and R.sup.4 and R.sup.5, is connected to form an alkylene group substituted by a lower alkyl group, provided that when they do not form the connecting group, each of R.sup.2 and R.sup.5 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, and each of R.sup.3 and R.sup.

Abstract: An unsaturated group-containing urethane compound of the following formula (I): ##STR1## wherein X is a C.sub.1-20 alkylene group which may be branched, and R.sup.1 is a group of the following structural formula (A) or (B): ##STR2## wherein each of R.sup.2 and R.sup.3 which are independent of each other, is a hydrogen atom or a methyl group, and Y is a C.sub.1-6 alkylene group which may be branched.

Abstract: A method for the preparation of a lithographic printing plate comprises exposing imagewise a lithographic printing plate precursor comprising a support having provided thereon a light-sensitive layer containing fine anatase-type titanium oxide grains and a complex composed of an organo-metallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group to an ultraviolet ray to render a surface of the light-sensitive layer hydrophilic in the exposed area. A lithographic printing plate prepared according to the method is also disclosed.