Abstract: A dental restorative composite and a method of curing the composite are disclosed in which the composite includes a polymerizable organic resin, a radiation activated initiator having an activation wavelength, an inert filler; and luminescent crystals, wherein the luminescent crystals emit radiation at a predetermined wavelength matching the initiator activation wavelength when the luminescent crystals are irradiated with radiation having a wavelength longer than the activation wavelength, the luminescent crystals being up-converting particles that result in those particles emitting radiation at a wavelength that initiates curing.

Abstract: A liquid sealant composition that can be cured by photoinitiation, heat-activated free radical initiation or both that includes an effective amount of an elastomeric acrylic polyolefin; an effective amount of a low molecular weight acrylic functional monomer component, the acrylic functional monomer component containing one or more unreacted acrylic or methacrylic double bonds, the low molecular weight acrylic functional monomer component having greater than 75% monofunctional monomers, wherein the elastomeric acrylic polyolefin is soluble in the low molecular weight acrylic functional monomer; at least one plasticizer; and at least one curing agent, the curing agent including at least one photoinitiator, at least one heat-activated free radical initiator, or a combination of at least one photoinitiator and at least one heat-activated free radical initiator.

Abstract: The present invention provides an active energy ray-curable resin composition comprising at least a multifunctional monomer having three or more radical polymerizable functional groups in the molecule in which the cured product of the composition exhibits anti-reflective function because of an uneven microstructure formed on the surface of the cured product, and provides a product having the uneven microstructure having high decontaminating properties such as fingerprint removal properties and high scratch resistance.

Abstract: An active energy ray-curable ink composition includes (component A) monofunctional radically polymerizable monomers, (component B) a polyfunctional oligomer having a glass transition temperature of 20° C. or lower and an acrylate value of 300 g/value or more, and (component C) a bifunctional radically polymerizable monomer having a viscosity at 25° C. of 15 mPa·s or less, wherein the component A includes an N-vinyl compound and a compound represented by the following formula (I), the content of the N-vinyl compound with respect to the total amount of the ink composition is from 10 to 50% by mass, and the content of the component A with respect to the total amount of the ink composition is 70% by mass or more.

Abstract: A photocurable adhesive composition is disclosed herein that has high adhesive strength and optical clarity and which in the cured state is reworkable and exhibits low propensities for exhibiting glow mark and pooling effects. The composition contains a chain transfer agent, an urethane (meth)acrylate having a plurality of ethylenically unsaturated groups, a (meth)acrylate monomer and a photoinitiator. The composition may optionally contain a light stabilizer.

Abstract: The present invention relates to a curable jettable fluid for making a flexographic printing master characterized in that the jettable fluid has a viscosity measured at jetting temperature of less than 15 mPa·s and comprises at least 50 wt. % of a mixture of a cyclic monofunctional (meth)acrylate monomer, a monofunctional urethane acrylate oligomer and a difunctional (meth)acrylate monomer.

Abstract: A process for the preparation of modified polymers by a photo-initiated polymerization includes preparing a polymerization medium comprising at least one photoinitiator comprising at least one phosphorous oxide (P?O) group or at least one phosphorous sulfide (P?S) group, and at least one polymerizable monomer. The at least one polymerizable monomer is polymerized by irradiating the polymerization medium with electromagnetic radiation so as to induce a generation of radicals so as to obtain a polymer. The polymer is modified by irradiating the polymer with electromagnetic radiation so as to induce a generation of radicals from the polymer in a presence of at least one modifying agent.

Abstract: An ultraviolet ray-curable clear ink composition includes a polymerizable compound; and a photopolymerization initiator, in which the polymerizable compound contains a vinyl ether group-containing (meth)acrylic acid ester represented by the following formula (I) and 5% by mass to 25% by mass of urethane oligomer with respect to the total mass of the ink composition.

Abstract: A process for the preparation of polymer lattices comprising polymer nanoparticles by a photo-initiated heterophase polymerization includes preparing a heterophase medium comprising a dispersed phase and a continuous phase and at least one of at least one surfactant, at least one photoinitiator, and at least one polymerizable monomer. The at least one polymerizable monomer is polymerized by irradiating the heterophase medium with electromagnetic radiation so as to induce a generation of radicals. The at least one photoinitiator is selected from compounds comprising at least one phosphorous oxide group (P?O) or at least one phosphorous sulfide (P?S) group. The irradiating of the heterophase medium is effected so that a ratio of an irradiated surface of the heterophase medium to a volume of the heterophase medium is at least 200 m?1.

Abstract: A sealing composition and a method of manufacturing a display panel using the sealing composition are disclosed. The sealing composition includes about 10% by weight to about 80% by weight of a denatured epoxy resin having a methacrylate group, about 5% by weight to about 40% by weight of a photo-curing acrylate monomer, about 1% by weight to about 10% by weight of a heat-curing agent, about 1% by weight to about 10% by weight of a photo-polymerization initiator, about 5% by weight to about 50% by weight of a filler, about 1% by weight to about 10% by weight of a flexibility improving agent and about 0.001% by weight to about 8% by weight of an additive.

Abstract: The present disclosure relates generally to compositions for nail coatings, and particularly, but not by way of limitation, to polymerizable compositions. The disclosure further relates to methods of making a polymerizable, protective and scratch resistant topcoat layer that can be easily removed.

Abstract: A photocurable composition includes (A) a photocurable monomer and (B) a silicon-containing monomer or oligomer thereof, the silicon-containing monomer being represented by Formula 1

Abstract: The invention relates to radiation curable compositions comprising a liquid 0/s(acyl)phosphine photo initiators of formula (I): wherein each of Ar1, Ar2 and Ar3 is independently a substituted or unsubstituted aryl group. The invention also relates to stabilized forms of liquid bis(acyl)phosphines of formula (I) and radiation curable composition comprising said stabilized photoinitiators. The radiation curable compositions are selected from the group consisting of an optical fiber coating composition and a coating composition capable of radiation cure on concrete and a coating composition capable of radiation cure on metal.

Abstract: This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

Abstract: A radiation curable coating for a floor comprising: at least one radiation curable oligomer, at least one photoinitiator and at least one reactive diluent monomer, said radiation curable oligomer being selected from the group consisting of Urethane (meth)acrylates, epoxy (meth)acrylates, polyester (meth)acrylates, acrylic (meth)acrylates, and hydrocarbon (meth)acrylates is described and claimed. The composition is capable of undergoing photopolymerization when coated on a floor and when irradiated by a light emitting diode (LED) light, having a wavelength from about 100 nm to about 900 nm, to provide a cured coating on the floor, with the cured coating having an external surface, and the cured coating having a Percent Reacted Acrylate Unsaturation (% RAU) at the external surface of about 60% or greater. Also described and claimed are the process to coat a floor with the LED curable coating for floor and a coated floor where the coating has been cured by application of LED light.

Abstract: This invention is related to compositions that can be used to protect surfaces, such as those found on bowling lanes (both synthetic and wood). The compositions are low viscosity and contain little to no VOCs (volatile organic compounds). In one embodiment, the flowable compositions are 100% solids, while in another embodiment, they are solvent-borne compositions that only include VOC-exempt solvents. Regardless of the embodiment, the compositions can be cured via UV LED light to yield scratch, abrasion, and impact resistant coatings.

Abstract: The present invention relates to dental polymerizable composite materials (curable dental compositions) comprising one or more plasticizers comprising a tricyclic structural element, to dental materials (polymers), obtainable by curing from the dental polymerizable composite materials comprising one or more plasticizers comprising a tricyclic structural element, to processes for producing a dental material and to dental curable composite materials for use in a therapeutic method in the production of a dental material.

Abstract: Provided is a resin composition which gives a cured product of a photocurable resin having excellent crack resistance even when formed into a thick film, and capable of maintaining a low coefficient of linear thermal expansion, low thermal weight loss, and a low cure shrinkage.

Abstract: A light-curable ink composition for ink jet recording contains a coloring material, a polymerizable compound, and a photopolymerization initiator. The coloring material contains at least C.I. Pigment Yellow 155, and the polymerizable compound contains at least a vinyl-ether-containing (meth)acrylate represented by general formula (I) below: CH2?CR1—COOR2—O—CH?CH—R3??(I). The vinyl-ether-containing (meth)acrylate is present in an amount of 10 to 67% by mass relative to the total mass of the ink composition.

Abstract: Provided are an actinic energy radiation curable ink, which can achieve a high fineness and natural glossiness when recording is carried out onto a non-absorptive recording medium such as a film or a laminated paper or a slightly absorptive recording medium such as a coated paper; and an actinic energy radiation curable inkjet recording method. This actinic energy radiation curable ink, which is to be used in inkjet recording, is characterized by: said actinic energy radiation curable ink undergoing reversible sol/gel phase transition depending on temperature; said actinic energy radiation curable ink containing from 1% or more by mass to less than 10% by mass of a gelling agent; and, at temperature Tm (° C.) that is separately defined, the storage elastic modulus (G?) of the actinic energy radiation curable ink being from 0.1 or more Pa to less than 1000 Pa and the storage elastic modulus (G?) being smaller than the loss elastic modulus (G?) thereof.

Abstract: Polymers, methods of use thereof, and methods of decomposition thereof, are provided. One exemplary polymer, among others, includes, a photodefinable polymer having a sacrificial polymer and a photoinitiator.

Abstract: The invention includes a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. The system of the invention has enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.

Abstract: The present invention provides an ink composition containing: a radical polymerizable compound; a photopolymerization initiator, and a chain transfer agent; and the radical polymerizable compound includes a monofunctional monomer at a ratio of 85% by weight or more in the total weight of the radical polymerizable compound.

Abstract: Methods for making dental crowns, bridges, inlays, onlays, veneers, fillings, and other restorations are provided. The methods involve using a two-phase light curing (TPLC) material. Preferably, the TPLC material used to form the dental restoration comprises a blend of polymerizable compounds; photopolymerization systems (a) and (b), and particulate filler materials (a) and (b). In a first light-curing step, curing light having a wavelength of greater than 420 nm is used to activate system (a). In a second light-curing step, curing light having a wavelength of less than 420 nm is used to activate system (b). The two step light-curing method is efficient and allows the dentist to make restorations having high mechanical strength and pleasing aesthetics.

Abstract: A curable adhesive composition is disclosed comprising: at least one free radically polymerizable oligomer component; optionally at least one diluent monomer; at least one perfluorinated ether monomer; and a photoinitiator. The curable liquid adhesive is easily removable with low force and low adhesive transfer.

Abstract: Provided is a material suitable for an optical element, which can be applied by inkjet, has an ultraviolet curable characteristic, and yields a cured product excellent in transparency and hardness and having a refractive index of more than 1.5. Specifically, an optical element excellent in transparency and hardness and having a refractive index of more than 1.5 is obtained by preparing a resin composition including at least: (A) 5 to 45 mass % of a vinyl group-containing copolymer obtained by copolymerization of a divinyl aromatic compound; (B) 55 to 94 mass % of a liquid photocurable polyfunctional (meth)acrylate having two or more (meth)acryloyl groups; (C) 0.97 to 20 mass % of a photopolymerization initiator; and (D) 0.03 to 1 mass % of a surfactant, and applying the resin composition onto a support substrate by inkjet, followed by photocuring.

Abstract: Energy curable inks formulations are disclosed having improved resistance properties.

Abstract: There is disclosed a silicone-modified adamantane derivative represented by the following general formula (1), Wherein each R1 independently represents a hydrogen atom or methyl group; each R independently represents a methyl group or phenyl group; n represents an integer from 2 to 1,000; and k represents a number of 0 to 2. There can be a photo-radically curable resin composition by adopting a novel and specific silicone-modified adamantane derivative, which composition is cured by photoirradiation even at a lower intensity of illumination, thereby enabling to obtain a cured product exhibiting not only an excellent moisture resistance but also an excellent adhesiveness to various substrates.

Abstract: A coating composition includes a UV curable film forming resin; a thixotropic and/or pseudoplastic anti-settling agent selected from at least one of an amine salt of a synthetic wax, a microcrystalline cellulose compound (MCC), a urea urethane, or a urethane enzymatically modified starch; a mar/scratch resistant additive selected from at least one of a mineral abrasive, glass particles, and ceramic particles; and water.

Abstract: A photosensitive resin composition includes: a copolymer obtained by subjecting a conjugated diene polymer having a (meth)acryloyl group, a conjugated diene monomer, and a (meth)acrylic acid monomer to copolymerization; a compound having at least one ethylenically unsaturated group; and a photoinitiator. The copolymer contains 60 wt % to 99 wt % of a copolymer fraction having a molecular weight ranging from 30,000 to 900,000, and 1 wt % to 22 wt % of a copolymer fraction having a molecular weight ranging from 1,000 to 10,000 when calculated from an integral molecular weight distribution curve obtained by plotting cumulative weight percentage versus molecular weight falling within a range between 1,000 and 1,000,000 measured by gel permeation chromatography.

Abstract: An ink composition is provided that comprises at least (Component A-1) diethylene glycol monobutyl ether acrylate, (Component A-2) at least one compound selected from the group consisting of a compound represented by Formula (1), phenoxyethyl acrylate, isobornyl acrylate, 3,3,5-trimethylcyclohexyl acrylate, and 4-t-butylcyclohexyl acrylate, (Component A-3) an N-vinyllactam and/or tetrahydrofurfuryl acrylate, and (Component B) a polymerization initiator, Component A-1 having a content of 1 to 35 wt % of the entire ink composition, and Components A-1 to A-3 having a total content of 60 to 90 wt % of the entire ink composition wherein R1 denotes a hydrogen atom or a methyl group and X denotes a single bond or a divalent linking group.

Abstract: The present invention provides a photocurable ink composition for ink jet recording with excellent curability. The photocurable ink composition for ink jet recording includes polymerizable compounds, a photopolymerization initiator, and a colorant, wherein the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by general formula (I): CH2?CR1—COOR2—O—CH?CH—R3??(I) (wherein R1 is a hydrogen atom or a methyl group, R2 is a divalent organic residue having 2 to 20 carbon atoms, and R3 is a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms) and phenoxyethyl (meth)acrylate.

Abstract: Disclosed is a curable coating composition suitable for use on composite substrates such as plastic composites, cementitious composites, ceramic composites, and engineered wood, or on plastic materials. The curable coating composition comprises a multifunctional oligomer, a monomer selected from the group consisting of monofunctional monomers, difunctional monomers and mixtures thereof, a photoinitiator, a polyester resin and a polycarboxylic acid. Also disclosed is a method of coating the substrates with the curable coating composition and a coated substrate wherein the cured coating resides on the surface of the substrate.

Abstract: The present invention relates to an active energy ray-curable resin composition including: a polymerizable component in which the polymerizable component includes 50 to 80% by mass of a monomer having 3 or more radical-polymerizable functional groups, and a molecular weight per functional group is 110 to 200, 10 to 50% by mass of a monomer having 2 radical-polymerizable functional groups, and at least 11 oxyalkylene groups, and 0 to 20% by mass of a monomer having one radical-polymerizable functional group; and a photopolymerization initiator. The present invention can provide an active energy ray-curable resin composition which can have comparatively low viscosity and can form a cured product with an excellent stamper mold releasing property, high abrasion resistance and an excellent fingerprint-wiping property, and an article having a fine concave-convex structure on the surface having high abrasion resistance and an excellent fingerprint-wiping property.

Abstract: An object of the present invention is to provide an ink composition which has excellent storage stability and has good curing sensitivity regardless of the type of a light source for irradiation, and an ink container. Another object of the present invention is to provide an ink jet recording method which provides a cured image having excellent image gloss even with an LED light source. The ink composition comprises: a radically polymerizable compound; a radical polymerization initiator; and a colorant, and having a dissolved oxygen content of 9 mg/L or more. The ink container, having a gas-impermeable structure and encapsulates the ink composition. The ink jet recording method comprises: a degassing step of reducing a dissolved oxygen between the ink container that stores the ink composition and ink-discharging nozzles; and a discharging step of discharging the degassed ink composition from the nozzles.

Abstract: The invention relates to a method of encapsulating a photovoltaic cell comprising curing an encapsulation composition comprising (i) a polyvinyl acetal resin/polymer, (ii) one or more ethylenically unsaturated monomers, oligomers, or a combination thereof, and (iii) at least one thermal free radical initiator and/or at least one photoinitiator. The resin/polymer is either a polyvinyl acetate derivative or a polyvinyl acetate copolymer such as EVA derivative, and comprises vinyl acetal units. The invention also relates to a photovoltaic cell encapsulated according to the method and to the encapsulation curable composition.

Abstract: An ultraviolet cross-linkable pressure sensitive adhesive sheet includes a (meth)acrylic copolymer of a monomer containing a (meth)acrylic acid ester having an ultraviolet cross-linkable site. The storage modulus of the pressure sensitive adhesive sheet before ultraviolet cross-linking is from 5.0×104 to 1.0×106 Pa at 30° C. and 1 Hz and 5.0×104 Pa or less at 80° C. and 1 Hz. The storage modulus of the pressure sensitive adhesive sheet after ultraviolet cross-linking is 1.0×103 Pa or more at 130° C. and 1 Hz.

Abstract: A sealant for a one drop fill process of the invention contains the following components (1), (2), (3), and (4): (1) a curing agent composed of a reaction product produced by reacting an acid compound and a polyamine containing, within its molecule, at least one active hydrogen and at least two nitrogen atoms; (2) a heat-curable resin; (3) an acylphosphine-based photoinitiator; and (4) a photo-curable resin. A heat-curable resin containing a bisphenol A propylene oxide-modified epoxy resin is preferably used as the heat-curable resin (2), and a photo-curable resin containing a bisphenol A acrylate-modified resin is preferably used as the photo-curable resin (4).

Abstract: The invention relates to a wind power plant comprising a vertically disposed shaft (2), a rotor with a number of straight or slightly curved blades (3, 4) which are parallel to the shaft (2); said rotor rotates round the shaft (2) whereby at least, one rotor blade (3, 4) which is disposed on the side facing the shaft (2) has a strip (5), which, in turn, is parallel to the shaft and projects from the surface of the rotor-blade (3, 4).

Abstract: The present invention relates to a photo-sensitive resin composition having superior heat-resistant and mechanical property, and a protective film for printed circuit board, and particularly provides a photo-sensitive resin composition including an acid-modified oligomer, a photo-polymerizable monomer, a photo-initiator, an epoxy resin, and a butadiene-modified epoxy resin including epoxy group and at least one double bond in the main chain, and a protective film for printed circuit board prepared by using the composition.

Abstract: There is provided novel black ultraviolet (UV) curable ink compositions having substantially improved curing properties. The novel ink comprises low levels of carbon black in combination with two or more other colored or non-black pigments which result in a black UV curable gel ink with superior cure compared to conventional all-carbon black loaded UV curable gel inks.

Abstract: Provided are a photocurable resin composition which has a short time required for curing to make it possible to enhance the productivity and which can provide a light-emitting element sealant having an excellent heat resistance and an excellent optical transparency and a light-emitting element sealant prepared by using the above photocurable resin composition. To be specific, provided are a photocurable resin composition comprising 100 parts by mass of an end-modified hydrogenated styrene-butadiene rubber (A) and 0.1 to 13 parts by mass of an ?-hydroxyalkylphenone base photopolymerization initiator and/or an acylphosphine oxide base photopolymerization initiator and a light-emitting element sealant prepared by using the above photocurable resin composition (B).

Abstract: An ink set is used in one or more recording media selected from a non-ink-absorbing or low ink-absorbing medium, a medium having an arithmetic surface roughness Ra of 20 ?m or more, fabric, and plain paper. The ink set contains a glitter ink which is recorded by an ink jet head and contains a glitter pigment and a polymerizable ink which contains an active energy line polymerizable compound and does not substantially contain a coloring material.

Abstract: The present invention relates to a resin composition for optical components, which is an ultraviolet-curable transparent resin composition used as a material for an optical component, in which the resin composition includes (A) an epoxy resin having two or more epoxy groups in one molecule thereof, (B) an oxetane compound having one or more oxetanyl groups in one molecule thereof and (C) a photo-acid generator, and in which the component (C) is contained in an amount of 0.01 to 2.0 parts by weight based on 100 parts by weight of a total amount of the components (A) and (B). The present invention also relates to an optical component obtained by using the resin composition for optical components, and a production method thereof.

Abstract: An inkjet printing method includes in order the steps of: a) providing to an inkjet printer one or more colorless liquids and a white ink including a pigment with a refractive index greater than 1.60; b) mixing the white ink in a controlled amount with the one or more colorless liquids to form a white ink-mixture wherein the viscosity is reduced by at least 5 mPa·s by reference to the white ink when measuring the viscosity at 40° C. with a Brookfield DV-II+Pro at 12 rotations per minute; and c) printing the white ink-mixture with the inkjet printer onto an ink-receiver. Additionally, a color inkjet ink set includes the one or more colorless liquids and the white ink, and an inkjet printer for use in the inkjet printing method.

Abstract: A photocurable ink composition includes polymerizable compounds and a photopolymerization initiator. The polymerizable compounds include vinyl ether group-containing (meth)acrylic esters represented by the following Formula (I): CH2?CR1—COOR2—O—CH?CH—R3??(I) (wherein, R1 represents a hydrogen atom or a methyl group; R2 represents a divalent organic residue having 2 to 20 carbon atoms; and R3 represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms), dipropylene glycol di(meth)acrylate, and monofunctional (meth)acrylate having an aromatic ring skeleton. The ink composition includes a coloring material.

Abstract: The present invention is directed to an adhesive composition comprising a crosslinkable acrylic copolymer, a multi-functionalized crosslinkable oligomer and a photoinitiator wherein the partially cured composition exhibits excellent wet out characteristics as reflected in a tan delta value of at least 0.4, preferably greater than 0.5, more preferable greater than 0.6 as measured at 20° C. resulting from a first curing stage, and the fully cured composition exhibits an improved stiffness and temperature resistance as reflected in a storage elastic modulus of at least 175,000 Pa at 20° C. and a shear adhesion failure temperature of at least 425° F. (218.3° C.) at 1 Kg/in2 (0.155 Kg/cm2), respectively, which result from a second sequential curing stage.

Abstract: The disclosure provides a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. Use of an off-stoichiometric ratio of thiol:ene functional groups in favor of excess thiols results in enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.

Abstract: Curable solid ink compositions, comprising a curable wax having a melting point under 40° C. as part of the ink vehicle, which are suitable for ink jet printing in applications that require high and/or variable levels of gloss. In particular, there is provided a novel high gloss, ultraviolet (UV) curable, phase change ink composition comprising a colorant and an ink vehicle comprising a gellant, a reactive diluent, a photoinitiator package, and a curable acrylate wax.

Abstract: A photocurable ink contains a colorant dissolved or dispersed within a solvent, a photoinitiator, an organic phosphite, an aldehyde, and a photocurable compound. The organic phosphite is present in a molar excess relative to the aldehyde moieties that are present. The photocurable ink can be used for imaging or other applications where a uniform or patterned image is desired. The photocurable ink can be cured partially before application, or totally cured after application.