57results about "Photosensitive materials" patented technology

A photosensitive surface treating agent containing a compound represented by the following Formula (M1). In Formula (M1), R1 is a linear, branched or cyclic alkyl group having 1 to 6 carbon atoms, Y1 is a linear or branched alkylene group having 1 to 4 carbon atoms or a single bond, and the terminal carbon atom of the alkyl group for R1 may be bonded to a carbon atom constituting the alkylene group for Y1, and R1 and Y1 may form a ring. R2 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R3 and R4 are each independently an alkyl group having 1 to 3 carbon atoms, n0 is an integer of 0 or more, and X is a halogen atom or an alkoxy group.

The invention discloses a photopolymer type holographic recording medium and a substrate processing method, and the method comprises the steps: providing a substrate which comprises a glass substrate or a resin substrate; providing a mixed solution of the photopolymer type holographic recording medium; performing hydroxylation treatment on the surface of the substrate to generate hydroxyl groups on the surface of the substrate; uniformly distributing the mixed solution of the photopolymer type holographic recording medium on the surface of a substrate, and baking, so that the compound with a plurality of isocyanate reactive functional groups and the polyisocyanate group compound in the photopolymer type holographic recording medium react to generate film-forming resin; the hydroxyl group on the surface of the substrate participates in the reaction, and the film-forming resin is connected to the substrate in a covalent bond manner. In this way, the adhesion between the photopolymer layer and the substrate can be improved without increasing the complexity of subsequent process operations.

The present invention relates to a photochromic article comprising: (a) a substrate; (b) a photochromic layer comprising a photochromic compound on the substrate; and (c) a UV absorbing layer comprising a UV absorber on the photochromic layer. The photochromic layer has an unactivated state absorbance greater than 0 over at least a portion of a wavelength of 250 nm to 450 nm. An end minimum absorbance wavelength value of the UV absorbing layer is at least 45 nm less than a first unactivated end minimum absorbance wavelength value of the photochromic layer. The invention also relates to ophthalmic articles, such as corrective lenses.

A liquid photohardenable composition for volumetric printing including a photohardenable resin component, a dual-wavelength photoinitiator, and a thixotrope,, wherein the liquid photohardenable composition exhibits non-Newtonian rheological behavior and a light transmittance greater than 90% for a 5 centimeter (cm) pathlength. Preferably such transmissivity remains above 90% for at least 10 days after preparation. Preferably the liquid photohardenable composition exhibiting non-Newton rheological behavior has a yield stress greater than or equal to about 5 Pascals at 50 degrees Celsius, Methods of forming an object in a volume of a liquid photohardenable composition of the invention and a method for screening thixotropes for inclusion in a liquid photohardenable composition are also disclosed.

A method for preparing photoactive perovskite materials. The method comprises the steps of: introducing a lead halide and a first solvent to a first vessel and contacting the lead halide with the first solvent to dissolve the lead halide to form a lead halide solution, introducing a Group 1 metal halide a second solvent into a second vessel and contacting the Group 1 metal halide with the second solvent to dissolve the Group 1 metal halide to form a Group 1 metal halide solution, and contacting the lead halide solution with the Group 1 metal halide solution to form a thin-film precursor ink. The method further comprises depositing the thin-film precursor ink onto a substrate, drying the thin-film precursor ink to form a thin film, annealing the thin film; and rinsing the thin film with a salt solution.

The present invention relates to photohardenable compositions for use in forming an object. The photohardenable compositions include a photohardenable resin component, a first photoinitiator that is activatable by exposure to light at a first wavelength and light at a second wavelength, and a second photoinitiator that is activatable by exposure to light at a third wavelength, wherein the first, second, and third wavelengths are not the same, and the third wavelength is shorter than the first wavelength and the second wavelength.

The invention relates to a preparation method of a nano silver halide emulsion, which comprises the following steps: S1, fully dissolving deionized water, sodium bromide, a nucleating aid, a stabilizer and gelatin in a container with disc type stirring, and uniformly mixing to prepare a primary glue solution; uniformly mixing silver nitrate with deionized water to prepare a silver nitrate solution; uniformly mixing sodium bromide, potassium iodide and deionized water to prepare a halogen solution; s2, at a certain temperature, injecting a prepared silver nitrate solution and a halogen solution into the primary glue solution at the same time to obtain a mother solution containing nano silver halide; and S3, desalting the mother liquor containing the nano silver halide, supplementing glue, and sensitizing to obtain the nano silver halide emulsion. The nucleating aid and the stabilizer are added into the gelatin aqueous solution, the prepared nano silver halide particles are uniform, stable in storage and free of aggregation, and the emulsion can be desalted at normal temperature, is low in energy consumption and high in production efficiency, and is beneficial to continuous production.

To provide a novel method for diagnosing a film for degradation which allows a more efficient and more secure determination of a degraded state of the film based on resin.SOLUTION: The present invention relates to a method for diagnosing a film based on resin for degradation to achieve the object, the method using an analysis technique B as a non-destructive method as described below: the analysis technique B is a technique of confirming the presence or absence of acid anhydride and a sign of a hydrolysis reaction in the film by Fourier transform infrared spectroscopy analysis.SELECTED DRAWING: Figure 1

An indeno-fused naphthopyran having the core skeletal structure (I): (I) wherein R1 is a substituted or unsubstituted alkyl group; R2 is substituted or unsubstituted amino; substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; substituted or unsubstituted alkoxy; substituted or unsubstituted aryloxy; substituted or unsubstituted alkylthio; substituted or unsubstituted aryl thio; or substituted or unsubstituted amide, urea, and carbamate; and at least one of R3 and R4 is an electron donating group, wherein the sum of the Hammett σp values for R3 and R4 is less than -0.40, wherein when R1 is a substituted alkyl group, a carbon atom of the alkyl group is directly bonded to the 7-position carbon atom, and the carbon atom of the alkyl group that is directly bonded to the 7-position carbon atom is unsubstituted.

Provided is an optical article having a substrate, a primer layer generated by curing a polymerizable composition for forming the primer layer, and a photochromic layer containing a photochromic compound in this order, in which the polymerizable composition for forming the primer layer contains a component A: a polyisocyanate, a component B: a hydroxy group-containing polymerizable compound, and a component C: a polymerizable compound having a viscosity of 100 cP or less and being selected from the group consisting of (meth)acrylates and vinyl ethers.

To provide a photosensitive surface treatment agent, a laminate, a transistor, a pattern formation method, and a transistor manufacturing method.SOLUTION: A photosensitive surface treatment agent comprises a compound represented by the formula (1) or a polymer compound induced from the formula (1). [In formula (1), R1 is a hydrogen atom or a C1-5 alkyl group, R2 and R3 independently represent a C1-3 alkyl group or a C1-13 fluoroalkyl group, R4 is a hydrogen atom or nitro group, n1 is 0 or 1, Y is a polymerizable group-containing group or a C1-20 linear or branched alkyl group].SELECTED DRAWING: None

This compound is represented by formula (1). [In formula (1), R represents an alkyl group having 1-5 carbon atoms, X represents a halogen element or an alkoxy group, n1 represents an integer of 0-5, and n2 represents an integer of 1 or more.]

A mask element for flexographic printing is provided. The mask element can be used for preparing a mask that has a mask image. The mask element can include: a transparent polymeric carrier sheet; a barrier layer on the transparent polymeric carrier sheet, wherein the barrier layer comprises non-crosslinked nitrocellulose; and an imaging layer on the barrier layer, wherein the imaging layer includes a non-silver halide thermally-ablatable material comprising non-crosslinked nitrocellulose, carbon black, and an infrared (IR) dye. In some aspects, the mask element further includes a transparent overcoat layer on the imaging layer. The mask can include: imaged regions in the imaging layer, wherein the imaged regions have optical apertures that are substantially devoid of the carbon black and non-crosslinked nitrocellulose thereof; and non-imaged regions in the imaging layer, wherein the non-imaged regions have the non-crosslinked nitrocellulose, carbon black, and infrared dye.

Microcapsules (208, 209) including a polymeric shell (116) and an internal phase (118) including a non-photopolymerizable reactive diluent are provided for use in microcapsule imaging sheets. Imaging sheets including microcapsules (209) which include a non- photopolymerizable reactive diluent, and which exhibit improvements in color development (Dmax), discoloration (yellowing) resistance, mechanical properties (e.g., peel strength), and temperature latitude of imaging sheets including leuco dyes.

An object of the present invention is to provide a novel method for diagnosing film degradation which can identify the degraded state of a film based on a resin more efficiently and reliably than ever. In order to attain this object, a method for diagnosing the degradation of a film based on a resin is adopted, the method comprising using the following analysis method A and / or analysis method B, which is a non-destructive analysis method: analysis method A: confirming the presence or absence of abnormality in the film by visual observation and olfactometry, and analysis method B: confirming the presence or absence of an acid anhydride and a sign of hydrolysis reaction as to the film by Fourier transform infrared spectroscopy analysis.

Provided is an optical article having a substrate, a primer layer generated by curing a polymerizable composition for forming the primer layer, and a photochromic layer containing a photochromic compound in this order, in which the polymerizable composition for forming the primer layer contains a component A: a polyisocyanate, a component B: a hydroxy group-containing polymerizable compound, and a component C: a polymerizable compound having a viscosity of 100 cP or less and being selected from the group consisting of (meth)acrylates and vinyl ethers.

The present invention relates to a photochromic article that includes: (a) a substrate; (b) a photochromic layer that includes a photochromic compound over the substrate; and (c) a UV absorbing layer that includes a UV absorber over the photochromic layer. The photochromic layer has an unactivated state absorbance of greater than 0 over at least a portion of wavelengths of from 250 nm to 450 nm. The UV absorbing layer has a terminal minimum absorbance wavelength value that is at least 45 nm less than a first unactivated state terminal minimum absorbance wavelength value of the photochromic layer. The present invention also relates to ophthalmic articles such as corrective lenses.

A method for preparing photoactive perovskite materials. The method comprises the steps of: introducing a lead halide and a first solvent to a first vessel and contacting the lead halide with the first solvent to dissolve the lead halide to form a lead halide solution, introducing a Group 1 metal halide a second solvent into a second vessel and contacting the Group 1 metal halide with the second solvent to dissolve the Group 1 metal halide to form a Group 1 metal halide solution, and contacting the lead halide solution with the Group 1 metal halide solution to form a thin-film precursor ink. The method further comprises depositing the thin-film precursor ink onto a substrate, drying the thin-film precursor ink to form a thin film, annealing the thin film; and rinsing the thin film with a salt solution.

The present invention relates to a photochromic article that includes a substrate and a photochromic layer formed from a curable photochromic composition. The photochromic composition includes a polyol component that includes a polycarbonate diol, an isocyanate component that includes an unblocked polyfunctional isocyanate and / or a blocked polyfunctional isocyanate, and at least one photochromic compound. The equivalents ratio of blocked / unblocked isocyanate equivalents of the isocyanate component to hydroxyl equivalents of the polyol component is at least 5:1. The photochromic article exhibits a T1 / 2 (Fade Half Life) at 23° C. of less than or equal to 70 seconds.

The present disclosure provides microcapsules (208, 209) comprising a polymeric outer shell (116) and an inner phase (118), the inner phase comprising a non-photopolymerizable reactive diluent, for use in a microcapsule imaging sheet. Imaging sheets comprising microcapsules (209) include non-photopolymerizable reactive diluents and exhibit improvements in color development (Dmax), discoloration (yellowing) resistance, mechanical properties (e.g., peel strength), and temperature tolerance in imaging sheets comprising leuco dyes.

A photosensitive surface treatment agent containing a compound represented by formula (M1). (In formula (M1), R1 is a hydrogen atom or a tert-butoxycarbonyl group or an ester-based protecting group, R2 is a hydrogen atom or an alkyl group having 1-6 carbon atoms, m is an integer of 1 or more, and X is a halogen atom or an alkoxy group. # imgabs0 #

A liquid photohardenable composition for volumetric printing including a photohardenable resin component, a dual-wavelength photoinitiator, and a thixotrope,, wherein the liquid photohardenable composition exhibits non-Newtonian rheological behavior and a light transmittance greater than 90% for a 5 centimeter (cm) pathlength. Preferably such transmissivity remains above 90% for at least 10 days after preparation. Preferably the liquid photohardenable composition exhibiting non-Newton rheological behavior has a yield stress greater than or equal to about 5 Pascals at 50 degrees Celsius, Methods of forming an object in a volume of a liquid photohardenable composition of the invention and a method for screening thixotropes for inclusion in a liquid photohardenable composition are also disclosed.

The present invention relates to a photochromic article that includes a substrate and a photochromic layer formed from a curable photochromic composition. The photochromic composition includes a polyol component that includes a polycarbonate diol, an isocyanate component that includes an unblocked polyfunctional isocyanate and / or a blocked polyfunctional isocyanate, and at least one photochromic compound. The equivalents ratio of blocked / unblocked isocyanate equivalents of the isocyanate component to hydroxyl equivalents of the polyol component is at least 5:1. The photochromic article exhibits a T1 / 2 (Fade Half Life) at 23°C of less than or equal to 70 seconds.

Primer layers (104) having improved reflectivity and thermal insulation properties are provided for use in microencapsulated thermal imaging sheets (100). Primer layers having a polymeric binder, of about 3% to about 60% by weight, relative to the total weight of the primer layer, of a white particulate, a primer substrate (102), and hollow particulate particles improve the reflectivity, color development, color density, and thermal insulation of microcapsule (108) imaging sheets including the same. A black back-coat (105) applied to the substrate on a side opposite the primer layer further enhances the Dmax and E10 of microcapsule imaging sheets and prevents premature exposure of microcapsule imaging sheets in stacked media.

The present invention relates to photohardenable compositions and methods of forming an object, the method preferably including a photohardenable composition described herein. Preferred photohardenable compositions and methods include a photohardenable resin component, a first photoinitiator that is activatable by exposure to light at a first wavelength and light at a second wavelength, and a second photoinitiator that is activatable by exposure to light at a third wavelength, wherein the first, second, and third wavelengths are not the same, and the third wavelength is shorter than the first wavelength and the second wavelength. Preferred first photoinitators include photoswitchable photoinitiators. Preferably the second light- activated photoinitiator comprises a free-radical photoinitiator. Hardenable resin compositions and methods of forming an object including the hardenable resin composition are also disclosed.

A photosensitive surface treatment agent containing a compound represented by formula (M1). In formula (M1), R1 is a linear, branched or cyclic alkyl group having 1-6 carbon atoms, and Y1 is a linear or branched alkylene group having 1-4 carbon atoms, or a single bond. The carbon atom at the terminal of the alkyl group of R1 may be bonded to the carbon atom of the alkylene group constituting Y1 to cause R1 and Y1 to form a ring. (In the formula, R1 represents a hydrogen atom or an alkyl group having 1-6 carbon atoms, R2 represents a hydrogen atom or an alkyl group having 1-6 carbon atoms, R3 and R4 each independently represent an alkyl group having 1-3 carbon atoms, n0 represents an integer of 0 or more, and X represents a halogen atom or an alkoxy group. # imgabs0 #

The present disclosure provides a primer layer (104) with improved reflectance and thermal insulation properties for microencapsulation of a thermographic sheet (100). A primer layer having from about 3% to about 60% by weight of a polymeric binder, white particulates, a primer substrate (102), and hollow particulate particles relative to the total weight of the primer layer improves reflectance, color development, color density, and thermal insulation of microcapsule (108) imaging sheets including the primer layer. A black backside coating (105) applied to the substrate on a side opposite the primer layer further enhances the Dmax and E10 of the microcapsule imaging sheet and prevents premature exposure of the microcapsule imaging sheet in the stacked media.

Provided are photochromic compounds represented by General Formula 1, photochromic compounds represented by General Formula 2 and photochromic compounds represented by General Formula 3. In General Formula 1, R100 to R111, and X1 and X2 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure. In General Formula 2, R200 to R211, and X3 and X4 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure. In General Formula 3, R300 to R311, and X5 and X6 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure.

An organotin photoresist composition and a method of stabilization are described. The organotin photoresist composition comprises a (stannocenyl)tin compound, a solvent, and an additive. Stannocenyl includes bis(cyclopentadienyl)tin, or substituted bis(cyclopentadienyl)tin, wherein cyclopentadienyl comprises cyclopentadienyl C5H5 group, or substituted cyclopentadienyl C5H4R, C5H3R2, C5H2R3, C5HR4, or C5R5 group. A method of stabilization comprises the usage of organic molecules as additives to stabilize (stannocenyl)tin compound photoresists.