Abstract: Described herein are inks and coating compositions curable by exposure to UV energy sources including UV-LED energy sources, which include a polymerizable component selected from an ethylenically unsaturated materials, a photoinitiator component that is one or more photoinitiators, one of which is an acyl phosphine oxide photoinitiator; and a Group IV metal chelating agent. Improved cured is realized for the described inks and coating compositions.

Abstract: The present invention relates to an UV-curable pressure sensitive acrylic adhesive obtainable by reacting in a first step a mixture comprising: (i) at least one acrylic monomer of formula (I) wherein R1 is H or CH3; and wherein R2 and R3 are both H or both CH3; and n is an integer from 0 to 22; or mixtures thereof; and (ii) at least one monomer which comprises a pendant reactive functional group selected from cycloaliphatic epoxides, oxetanes, mono-substituted oxiranes or mixtures thereof; and in a second step reacting the obtained mixture from the first step with (iii) at least one cationic photoinitiator; and (iv) optionally further additives. An article comprising this adhesive, and a method of manufacturing the article.

Abstract: A dually curable resin composition is provided. The composition comprises: (A) a first polyorganosiloxane comprising at least one alkenyl group and at least one alkoxy group in one molecule; (B) a second polyorganosiloxane comprising at least two photoreactive functional groups in one molecule on its side chain of siloxane backbone; (C) at least one silane compound represented by a particular chemical formula herein or its partially hydrolyzed compound; (D) at least one photoinitiator; and (E) at least one condensation reaction catalyst. A cured body prepared by curing the dually curable resin composition, and an electronic device comprising the cured body, are also provided.

Abstract: The present invention relates to compositions thermally curable on demand by red to near infrared irradiation, method of using same for thermal amplification of free radical polymerizations, and articles obtained by such method. The invention also relates to the use of a heat-generating dye in association with a thermal initiator for controlling the onset of thermal free radical polymerization.

Abstract: Provided is a surface-treated metallic material with easy control of glossiness and a manufacturing method therefor, the surface-treated metallic material comprising: a metallic material; and a coating layer which is formed on at least one side of the metallic material and on which an ultraviolet curable coating composition is cured, wherein the coating layer consists of a plurality of protrusions, which have a volume of 3 to 16 pico liters and are arranged at a density of 5 to 610 per 1 mm2 of the metallic material. As such, the surface-treated steel sheet is excellent in adhesion, scratch resistance and corrosion resistance, and has easy control of glossiness.

Abstract: Provided are a photocurable ink composition including a resin which contains an amino group having one or more hydrogen atoms on a carbon atom at an ?-position and having an amine value of 3.5 mmol/g to 12 mmol/g, and a radically polymerizable monomer, in which the radically polymerizable monomer contains at least one of a monofunctional radically polymerizable monomer or a bifunctional radically polymerizable monomer, a total content of the monofunctional radically polymerizable monomer and the bifunctional radically polymerizable monomer is 50% by mass or greater with respect to a total mass of the photocurable ink composition, and a content of a radically polymerizable monomer containing an acid group in the radically polymerizable monomers is 1.5 mmol or less per 100 g of the photocurable ink composition; and an image forming method performed by using the photocurable ink composition.

Abstract: The purpose of the present invention is to provide a photopolymerizable composition which can act as a photopolymerization sensitizer that is active against light having a wavelength falling within a wavelength range of from 300 to 500 nm, and which has such a property that coloring of a cured product produced by polymerizing a photopolymerizable composition containing the photopolymerization sensitizer is less. A photopolymerization sensitizer composition characterized by comprising a photopolymerization sensitizer containing an alkoxyanthracene compound represented by the formula (1) and a singlet oxygen quencher; and a photopolymerizable composition containing the photopolymerization sensitizer composition: in the formula (1), n represents an integer of 1 or 2; R represents a C1-12 alkyl group; and X represents a hydrogen atom or a C1-8 alkyl group.

Abstract: A polymer composition that comprises an olefinic polymer, a flame retardant that includes a halogen-free mineral filler, and a compatibilizing agent is provided. The halogen-free mineral filler constitutes from about 20 wt. % to about 80 wt. % of the composition. The composition may exhibit a degree of water uptake of about 5 wt. % or less after being immersed in water for seven days at a temperature of 23° C.

Abstract: The invention provides novel compounds and methods that are useful in promoting reactions that proceed through an oxidative quenching pathway. In certain embodiments, the reactions comprise atom transfer radical polymerization.

Abstract: The present application can provide a preparation method that can effectively produce a polymer having desired molecular weight characteristics and solubility in a solvent, and having a monomer composition, which is designed freely and variously according to the purpose, without unnecessary components with excellent polymerization efficiency and conversion rates, and a dispersion comprising the polymer formed by the preparation method.

Abstract: An object of the present invention is to provide an active energy ray-curable coating composition including a specific resin component and at least one pigment (D) selected from the group consisting of a coloring pigment and a glitter pigment. The present invention provides an active energy ray-curable coating composition including a poly[(meth)acryloyloxyalkyl] isocyanurate (A); a polyfunctional (meth)acrylate (B) having 4 or more (meth)acrylate groups; an acrylic resin (C); and at least one pigment (D) selected from the group consisting of a coloring pigment and a glitter pigment, wherein the acrylic resin (C) has a weight-average molecular weight in the range of 5,000 to 30,000 and a solubility parameter in the range of 9.0 to 11.5.

Abstract: A light-curable artificial nail is disclosed having an adhesive section including a light-curable composition in a semi-cured state. The light-curable composition is configured to transition from the semi-cured state to a cured state based on exposure to at least one wavelength of electromagnetic radiation. The light-curable artificial nail includes a strengthening section disposed above the adhesive section and a polish section disposed above the adhesive section.

Abstract: The present invention provides a new method for modifying a polymer molded body and binding a target molecule. The method for selectively binding a target molecule to a polymer molded body of the present invention includes: a pretreatment step of irradiating a selected surface of a polymer molded body with light in the presence of a compound radical; and a binding step of reacting a target molecule with the polymer molded body after the pretreatments to bind the target molecule to the selected surface of the polymer molded body, wherein the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element.

Abstract: To provide a resin cured body for dental cutting processing used for cutting and machining using a dental CAD/CAM system, wherein the resin cured body consists of the cured body of a composition comprising: (a) an inorganic filler containing 55 wt. % or more of an element belonging to group II and/or group XIII of the periodic table in terms of an oxide, (b) a polymerizable monomer, and (c) a polymerization initiator.

Abstract: Photocurable (meth)acrylate compositions with low viscosity when uncured, and high flexibility and shear/tensile strength when cured, further possessing rapid tack-free fixture times, comprising mixtures of urethane acrylate resin, isobornyl acrylate, N,N-dimethylacrylamide, a photoinitiator component, and a low percentage of tetrahydrofurfuryl acrylate, for example from about 9% to about 15% by weight based on the weight of the composition. Applications can include adhesive bonding of medical tubing, UV/Visible transparent plastics material medical devices or equipment, or other flexible UV/Visible transparent material substrates.

Abstract: A photosensitive resin composition is provided comprising 100 pbw of a polyimide silicone containing a primary alcoholic hydroxyl group, a crosslinker, a photoacid generator, a polyfunctional epoxy compound, 1-70 pbw of a filler having an average particle size of 0.01-20.0 ?m, and 0.01-30 pbw of a colorant. The resin composition is colored and photosensitive and cures into a product having an improved modulus.

Abstract: A method and a system for producing a change in a medium disposed in an artificial container. The method places in a vicinity of the medium at least one of a plasmonics agent and an energy modulation agent. The method applies an initiation energy through the artificial container to the medium. The initiation energy interacts with the plasmonics agent or the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the plasmonics agent or the energy modulation agent.

Abstract: The disclosure describes a polymerizable liquid that includes a reactive oligomer and a reactive monomer. The polymerizable liquid is an energy polymerizable liquid hardenable by a single reaction mechanism forming a Photoplastic material. The disclosure further describes a method of producing the Photoplastic material and articles that can be made from the Photoplastic material.

Abstract: The present disclosure provides an effective and efficient process for the preparation of a dry chlorinated polyvinyl chloride (CPVC), comprising introducing chlorine gas into slurry of polyvinyl chloride in water to obtain a reaction mixture; irradiating the reaction mixture to obtain a product mixture comprising CPVC and water solution including unreacted chlorine gas and hydrogen chloride; filtering the product mixture to obtain a first mass; adding water to the first mass for extracting unreacted chlorine gas and hydrogen chloride to obtain an aqueous suspension, and filtering the aqueous suspension to obtain a second mass; passing nitrogen through the second mass to extract residual water solution to leave behind a third mass; and agitating the third mass in a high-speed mixer together with a neutralizing agent, and optionally with a stabilizer and a processing additive to obtain dry thermally stable CPVC with thermal stability in the range of 1000 seconds to 1500 seconds.

Abstract: A polymerizable composition includes at least one monomer, a photoinitiator capable of initiating polymerization of the monomer when exposed to light, and a phosphor capable of producing light when exposed to radiation (typically X-rays). The material is particularly suitable for bonding components at ambient temperature in situations where the bond joint is not accessible to an external light source. An associated method includes: placing a polymerizable adhesive composition, including a photoinitiator and energy converting material, such as a down-converting phosphor, in contact with at least two components to be bonded to form an assembly; and, irradiating the assembly with radiation at a first wavelength, capable of conversion (down-conversion by the phosphor) to a second wavelength capable of activating the photoinitiator, to prepare items such as inkjet cartridges, wafer-to-wafer assemblies, semiconductors, integrated circuits, and the like.