Abstract: A composition is provided that includes aliphatic urethane acrylate; a multifunctional crosslinking agent; photoinitiator; a chemical initiator system of a peroxide or azo group containing catalyst, and a cure promoter; and a particulate filler. The composition is amenable to rapid cure to a sandable condition as compared to conventional products. By adjusting the amount of particulate filler present, a product is provided that operates as a primer, a putty, or a filler. A method of vehicle body repair includes the application of an uncured layer of the composition to the vehicle body. The uncured layer is exposed to UV radiation to induce cure of the uncured layer to form a coating in a time of between 2 and 20 minutes even with an ultraviolet wavelength emitting light emitting diode (UV LED).

Abstract: The present invention can provide a salt capable of producing a resist pattern with satisfactory CD uniformity (CDU), and a resist composition.

Abstract: Radically polymerizable dental material which contains at least one compound of Formulae I to III: The material preferably additionally contains a radically polymerizable monomer, an initiator for the radical polymerization and filler. It is characterized in particular by a low polymerization contraction stress.

Abstract: A photopolymerizable composition for forming a bezel pattern developed to be applied on a display substrate, a method for forming a bezel pattern using the same, a bezel pattern manufactured thereby, a display substrate comprising a bezel pattern manufactured thereby, and a rework method for removing a bezel pattern having a defective printed pattern are disclosed herein. In some embodiments, the composition includes a colorant, an epoxy monomer, an oxetane monomer, a vinyl monomer, a cationic photopolymerization initiator, an adhesion promoter and a diluting solvent, the oxetane monomer comprises a monofunctional oxetane monomer and a difunctional oxetane monomer. The composition is suitable for manufacturing a bezel pattern that is easily removed, has sufficient adhesion to a display substrate, and good curing sensitivity and pencil hardness, without requiring a high-temperature heating process.

Abstract: Described are methods for reversible occlusion of a body lumen by way of degradation as a result of exposure to one or more stimuli such as light. The methods include administering one or more substance(s) into a body lumen of a subject and forming a stimuli-responsive polymer mass in the body lumen from the one or more substance(s). The mass is sufficient to occlude the body lumen in a manner that prevents transport of at least one material through the body lumen and is susceptible to on-command reversal in the body lumen upon exposure to one or more stimuli. The methods include administering one or more stimuli to a polymer mass in a body lumen for a time and intensity to cause the reverse the polymer mass. The methods are particular useful for applications in which it is desirable to temporarily occlude a body lumen, such as male and female contraception.

Abstract: The disclosure relates to ink compositions for digital printing on an external surface of a plastic article. The ink compositions comprise an ink removal-promoting additive. In some aspects, the ink removal-promoting additive can facilitate the separation or loosening of the image from the external surface of the article when the image is exposed to a liquid-based solution at an elevated temperature. Also disclosed are recyclable plastic articles having an external surface with an image printed thereon using the disclosed ink composition and methods for removing cured ink from a plastic container. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: We disclose a system for preparing antimicrobial surfaces, coated with metal oxide nanoparticles by means of a novel sonochemical method. These antibacterial surfaces are widely used in medical and other applications. The deposition of metal oxides known to possess antimicrobial activity, namely ZnO, MgO and CuO, can significantly extend the applications of textile fabrics, medical devices and other items and prolong the period of their use. By means of the novel sonochemical method disclosed here, uniform deposition of metal oxide nanoparticles is achieved simply.

Abstract: A resist underlayer film-forming composition for lithography capable of being dry-etched during pattern transfer from the upper layer or during substrate processing and capable of being removed with an alkaline aqueous solution after the substrate processing. A resist underlayer film-forming composition for lithography includes a polymer (A) including a unit structure of Formula (1) and a unit structure of Formula (2); a crosslinkable compound (B) having at least two groups selected from blocked isocyanate groups, methylol group, or C1-5 alkoxy methyl groups; and a solvent (C), characterized in that the polymer (A) is a polymer in which the unit structure of Formula (1) and the unit structure of Formula (2) are copolymerized in a mol % ratio of the unit structure of Formula (1):the unit structure of Formula (2)=25 to 60:75 to 40.

Abstract: A mirror assembly including a viewable primary cover with a free surface, the primary cover made of optically clear molecular cross-linked material and opposite the primary cover a secondary cover made of optically opaque cell cast polymer with ultraviolet absorbing pigments, between the covers a reflective portion applied to the secondary cover.

Abstract: The decorative sheet for three-dimensional molding includes a thin metal film layer, a surface protection layer, and a base film, at least the thin metal film layer and the surface protection layer being disposed on the base film in this order, in which the surface protection layer consists of a cured material of an ionizing radiation curable resin composition containing a polycarbonate(meth)acrylate and/or an acrylic silicone (meth)acrylate. The decorative sheet for three-dimensional molding, which has excellent moldability, provides a decorative molded article with a metallic style in excellent design and with excellent abrasion resistance.

Abstract: A cover window for a display device, including a base film; and a coating layer on the base film, the coating layer including a first region and a second region having different hardnesses, the second region having a hardness less than that of the first region, and the base film including the coating layer being slidable from the second region in a direction toward the first region and in a direction from the first region toward the second region.

Abstract: An active-energy-ray-curable composition including: a cyan pigment; and a polymerizable compound, wherein a ratio of absorbance at a wavelength of 385 nm to absorbance at a wavelength of 620 nm is 0.65 or less.

Abstract: A resin composition for transparent substrates comprises an epoxy resin (A) and a curing agent (B), wherein the curing agent (B) comprises a cyclohexane tricarboxylic anhydride.

Abstract: A curable divinylarene dioxide resin composition including (a) at least one divinylarene dioxide, (b) at least one cationic photoinitiator, and (c) optionally, at least one pigment material; a process for making the curable divinylarene dioxide resin composition; and a cured divinylarene dioxide resin composition made therefrom. The cured product made from the above curable divinylarene dioxide resin composition offers improved properties and are useful for various applications including ink formulations.

Abstract: The present invention provides a cationically curable resin composition for assembling hard disk devices which comprises a resin having a cationically polymerizable functional group (a component A) and a cationic polymerization initiator (a component B), the component B being at least one selected from the group consisting of X+(SbF6)?(B1), X+(B(C6F5)4)?(B2) and X+((Rf)nPF6-n)?(B3) (in the formulae, X+ is iodonium or sulfonium, Rf is a fluorinated alkyl having 1 to 6 carbon atoms, and n is an integer of 1 to 6). The invention also provides a hard disk device manufacturing method using the composition, and a hard disk device assembled with the composition.

Abstract: Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.

Abstract: The present invention relates to a primer ink comprising a polymerizable compound and a polymerization initiator, wherein the polymerizable compound comprises a monofunctional monomer having an aromatic hydrocarbon-based ring structure in a molecule and an aliphatic hydrocarbon-based monofunctional monomer, wherein a total mass of the monofunctional monomer having an aromatic hydrocarbon-based ring structure in a molecule and an aliphatic hydrocarbon-based monofunctional monomer is 80% by mass or more based on the total mass of all polymerizable compounds which the primer ink comprises, and wherein a surface tension of is 25 mN/m to 31 mN/m and a viscosity is 50 mPa·s or less.

Abstract: The present invention relates to the use of polymeric photoinitiators based on polyalkyletherurethane backbones in the production of hydrophilic gels, in particular hydrogels. The invention relates to methods for manufacturing hydrophilic gels using said polymeric photoinitiators, and the hydrophilic gels thus obtained.

Abstract: This invention refers to photo-crosslinked hydrogel materials based in gellan gum suitable for tissue engineering and regenerative medicine applications or as drug delivery systems. Formulations of gellan gum with different degrees of acylation serve as precursor material for insertion of a polymerizable moiety. The materials are capable of free radical polymerization with a photo-initiator at mild temperatures and exposure to ultraviolet light, enabling control of reticulation and withstanding the encapsulation of human and animal cells and/or drugs, and any combination thereof. The physicochemical and biological properties can be adjusted by combining different formulations of gellan gum and reaction conditions.

Abstract: A two part composition comprising a Part A and a Part B, wherein Part A comprises an oligomer having both isocyanate and acrylate moieties, and an organic peroxide capable of generating free radicals upon decomposition; and Part B comprises a polyol, and a catalyst that can decompose the organic peroxide. In one form, the two part composition of a Part A and a Part B are in admixture. By combining Part A and Part B the isocyanate moieties react with the polyol to produce a combination of a urethane acrylate oligomer, organic peroxide and the catalyst. Then in either order, the combination is exposed to sufficient actinic radiation to polymerize at least a portion of the urethane acrylate oligomer; and the catalyst decomposes the organic peroxide thus generating free radicals, which free radicals polymerize at least a portion of the urethane acrylate oligomer.

Abstract: A photosensitive resin composition includes (a) a compound polymerizable in the presence of an acid, and (b) a photoacid generating agent including an onium salt having a cationic part structure represented by formula (b1) below and an anionic part structure represented by formula (b2) below, wherein the component (b) absorbs 50% or more of the amount of 365 nm wavelength light absorbed by the photosensitive resin composition,

Abstract: A photocurable resin composition for three-dimensional photofabrication operations, including stereolithography, comprising (A) a cationically polymerizable compound having two or more bisphenol structures and one or more hydroxyl groups, (B) a cationically polymerizable compound other than the component (A), (C) a cationic photoinitiator, (D) a radically polymerizable compound, (E) a radical photoinitiator, and (F) multilayer polymer particles having a core and a shell layer, the shell layer containing functional group-modified rubber polymer particles having at least one reactive functional group.

Abstract: A double-sided polarizer includes a polarizing film, a first adhesive layer formed on one surface of the polarizing film, a second adhesive layer formed on the other surface of the polarizing film, a first transparent film formed on the first adhesive layer, and a second transparent film formed on the second adhesive layer, wherein the first adhesive layer and the second adhesive layer are formed of an active energy line-curable adhesive and the first adhesive layer is 0.1 ?m to 3 ?m thick, and there is also provided an optical device including the double-sided polarizer.

Abstract: This invention relates to a printing ink and in particular to an ink for ink-jet printing which is cured by irradiation. The ink comprises at least one radiation-curable monomer; at least one passive thermoplastic resin; at least one radical photoinitiator; and at least one colouring agent; wherein the ink has a viscosity of less than 100 mPas at 25° C., and wherein the at least one passive resin is present at 2 to 15 wt % based on the total weight of the ink and has a molecular weight of 1,500 to 70,000.

Abstract: In one embodiment, a resist material to be used in an imprint process includes a diluent monomer having a hydroxyl group and at least one functional group selected from a vinyl ether group, an epoxy group and an oxetanyl group. The material further includes a dendrimer having at least two reactive groups for photo-cationic polymerization. The material further includes a photo-acid generator as a polymerization initiator.

Abstract: The present invention relates to (meth)acrylated compounds (A) prepared from (a) at least one cyclic ether polyol, (b) at least one linking compound (b1) and/or (b2), wherein the linking compound (b1) is selected from cyclic compounds (b11) containing at least one (I) group in the cycle where X=O or NH, from hydroxy acids (b12) and/or from alkylene oxides (b13) containing from 2 to 4 carbon atoms and the linking compound (b2) is selected from epihalohydrins or polyisocyanates, (c) a (meth)acrylating compound; and to their use in radiation curable compositions for the coatings, inks, overprint varnishes, adhesives and composites.

Abstract: Curable adhesive compositions are provided that exhibit a high refractive index.

Abstract: Improvedly storage stable dental compositions useful for the preparation of dental prostheses and for dental restoration containing a uniquely pretreated dental filler material.

Abstract: Improved methods for preparing polyethylene glycol fumarate) are disclosed. Methods for chemically crosslinking or photocross-linking hydrophilic polyethylene glycol fumarate) with hydrophobic polymers such as poly(propylene fumarate) (PPF) and poly(caprolactone fumarate) (PCLF) to form various hydrogels (FIG. 1) with controllable hydrophilicity are also disclosed. The hydrogels are useful in the fabrication of injectable and in-situ hardening scaffolds for application in skeletal reconstruction. An injectable material including the hydrogels may be useful in controlled drug release.

Abstract: A photopolymerizable inkjet ink including: at least one selected from the group consisting of (meth)acrylic acid esters negative for skin sensitization and (meth)acrylamides negative for skin sensitization; and at least one selected from the group consisting of vinyl ethers negative for skin sensitization, t-butyl methacrylate negative for skin sensitization, n-pentyl methacrylate negative for skin sensitization, and n-hexyl methacrylate negative for skin sensitization.

Abstract: Disclosed are a positive photosensitive resin composition that includes (A) an alkali soluble resin; (B) a dissolution controlling agent including the compound represented by Chemical Formula 6; (C) a photosensitive diazoquinone compound; (D) a silane compound; and (E) a solvent, and a photosensitive resin film prepared by using the same.

Abstract: A glass printing ink and glass printing lacquer are prepared, which contain at least one photoinitiator, at least one resin and at least one additional substance. The resin is an epoxy resin based on bisphenol A, diluted in a UV-curing monomer, or a resin with functional groups containing free functional amino, hydroxy, epoxy, acid, acid anhydride and/or acrylate groups, or a combination of the epoxy resin with the resin with functional groups. The at least one additional substance is a wax. The use of the glass printing ink and glass printing lacquer in printing a glass substrate and processes for the printing of a glass substrate are also described.

Abstract: A photocurable resin composition for sealing an organic EL device is provided, which can seal the organic EL device without exerting any bad influence on the device, thereby suppress the formation and growth of dark spots positively, and which can ensure a high transmittance of light, thereby maintain a stable light emitting characteristic over a long period of time. The composition comprises (A) an epoxy resin containing at least two glycidyl groups in each molecule thereof and having a molecular weight of 200 to 7000, (B) an epoxy resin containing at least one glycidyl group in each molecule thereof and having a molecular weight of 20000 to 100000, (C) a latent acid photo catalyst adapted to be activated and produce an acid upon being irradiated with energy beam, and (D) a silane coupling agent containing a glycidyl group in each molecule thereof, the composition exhibiting non-fluidity at 25° C., but exhibiting fluidity in a temperature range of 50° to 100° C.

Abstract: The present invention relates to the use of oligomeric siloxane components in radiation-curable formulations which in the cured state offer a particular degree of corrosion control for metallic substrates.

Abstract: Polycyclic aromatic compounds of formula (I) having at least two conjugated aromatic rings at least one of which has a substituent comprising a cyclic carbonate group can be used as sensitizers for cationic photoinitiators, especially iodonium compounds, and may also function as monomers in cationically initiated radiation curable compositions, especially coating compositions, such as printing inks and varnishes.

Abstract: Provided is a radical-polymerizable resin capable of giving a cured material which is satisfactorily flexible, can relax stress upon usage as an adhesive, and does not cause disadvantages such as separation at the adhesive interface or breakage of an adherend, which stress occurs between the adhesive and the adherend upon heating or cooling and is caused by difference in coefficient of thermal expansion between them. The radical-polymerizable resin is obtained through cationic polymerization of a compound represented by any of following Formulae (1a) and (1b) and a compound represented by any of following Formulae (2a), (2b), (2c), (2d), (2e), and (2f). The radical-polymerizable resin is liquid at 0 ° C. and has a weight-average molecular weight of 500 or more. Symbols in the formulae are as defined in the description.

Abstract: The present invention relates to a novel water soluble polyimide resin, which contains a hydrophilic functional group such as —OH, —COOH to increase the solubility of the polyimide resin in alkali aqueous solution, and is suitable for using as an insulation film in electronic and photoelectric products. The present invention also relates to preparation and use of the above polyimide.

Abstract: Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.

Abstract: An actinic ray curable composition comprising a photo-polymerizable compound and a photo-polymerization initiator, wherein the photo-polymerizable compound is a cationic polymerizable compound and a terminal polyether-modified silicone surfactant is further incorporated in the actinic ray curable composition.

Abstract: The invention provides a photopolymerisable or photocrosslinkable reactive mesogen for forming a charge transporting or light emitting polymer network, the mesogen having an asymmetric structure (II): B1—S1-A1-M-(A-S—B)n (II) wherein: A and A1 are chromophores; S and S1 are spacers; B and B1 are endgroups which are susceptible to photopolymerisation or photocrosslinking; M is a non-chromophoric aliphatic, alicyclic or aromatic moiety; and n is an integer from 1 to 3; wherein, when the value of n is greater than 1, each of the groups A, S and B may be the same or different. Preferably, M is of the formula Y—Zm, wherein Y is an aliphatic, alicyclic, aromatic or heterocyclic moiety, Z is an aliphatic linking group and m is an integer from 2 to 4, and wherein each of the Z groups may be the same or different.

Abstract: Monomers and polymers used in making spectacle lenses are disclosed. A thermal curing process is disclosed that includes a latent thermal cationic acid generator and optionally a cationic photoinitiator.

Abstract: An object of the present invention is to provide a method for producing polyamide acid particles which is used as a raw material for polyimide particles with a small average particle diameter having high heat resistance. Other objects of the present invention are to provide a method for producing polyimide particles using the method for producing polyamide acid particles, and polyimide particles produced by the method for producing polyimide particles. Yet another object of the present invention is to provide a bonding material for an electronic component, which has a low linear expansion coefficient and a low elastic modulus after being cured in the temperature range equal to or less than the glass transition temperature, so that a joined body with high reliability can be produced.

Abstract: A fully curable jettable composition having a viscosity less than 30 cps at a temperature within the range of 15° C.-180° C. comprising (i) at least one low viscosity reactive resin; (ii) at least one higher viscosity resin having a viscosity greater than twice that of the low viscosity resin and a functionality of greater than or equal to 2; (iii) at least one curable toughener, (iv) at least one initiator for the polymerization of the resins, and (v) at least one stabilizer for delaying the curing of the resins of the composition. The composition can be jetted from piezo electric printing heads under the control of a computer program to form a multi-layered article, for example, a three dimensional article, in which the adjacent droplets merge and are cured homogeneously together.

Abstract: The present invention relates to a photocurable resin composition including an epoxy resin, an oxetane compound and a photopolymerization initiator, in which the epoxy resin includes the following ingredients (A) and (B) in combination, and the oxetane compound includes the following ingredient (C): (A) an epoxy resin having at least two epoxy groups in one molecule thereof and being liquid at 60° C. or higher; (B) a solid epoxy resin having at least two epoxy groups in one molecule thereof and having a refractive index of 1.6 or more by itself; and (C) an oxetane compound represented by the following general formula (1) in which n is an integer of 1 to 6.

Abstract: The present invention relates to a primer ink comprising a polymerizable compound and a polymerization initiator, wherein the polymerizable compound comprises a monofunctional monomer having an aromatic hydrocarbon-based ring structure in a molecule and an aliphatic hydrocarbon-based monofunctional monomer, wherein a total mass of the monofunctional monomer having an aromatic hydrocarbon-based ring structure in a molecule and an aliphatic hydrocarbon-based monofunctional monomer is 80% by mass or more based on the total mass of all polymerizable compounds which the primer ink comprises, and wherein a surface tension of is 25 mN/m to 31 mN/m and a viscosity is 50 mPa·s or less.

Abstract: Disclosed is a photocurable resin composition for nanoimprint, containing a curable monomer component with or without a binder resin. The composition further contains 0.001 to 5 parts by weight of a compound having a reactive functional group and a hydrophobic functional group in the same molecular skeleton, per 100 parts by weight of the total amount of the curable monomer component and binder resin. Preferably, the reactive functional group is at least one functional group selected from the group consisting of hydroxyl groups, epoxy groups, vinyl ether groups, oxetanyl groups, alkoxysilane groups, and free-radically polymerizable vinyl groups, and the hydrophobic functional group is at least one functional group selected from the group consisting of fluorine-containing groups, alkylsilane groups, alicyclic hydrocarbon groups, and aliphatic hydrocarbon groups having 4 or more carbon atoms.

Abstract: Adhesive composition according to the present invention includes an adhesive base agent consisting of a monomer and a polymerization initiator. Adhesion of the adhesive composition changes to take local maximum value, minimum value and a value greater than the local maximum value along with increase of irradiation amount of the electromagnetic wave or particle beam irradiated to the adhesive composition under a predetermined temperature environment. In a method for manufacturing a laminate according to the present invention allows for easy peeling of adherends and a layer of the adhesive composition when adhesion of the adhesive composition takes the minimum value.

Abstract: An adhesive composition which allows for preventing misalignment when mutually laminating adherends, mutually strongly bonding the adherends when correction of lamination is not required, as well as peeling the adherends without causing any damage thereto when correction of lamination is required. The adhesive composition includes an adhesive base agent consisting of a monomer and a polymerization initiator. Adhesive strength of the adhesive composition changes to take a local maximum value, a local minimum value and a value greater than the local maximum value along with increase of irradiation amount of the electromagnetic wave or particle beam irradiated to the adhesive composition under a predetermined temperature environment.

Abstract: Compositions that can be polymerized and/or crosslinked into coatings by cationic and/or radical irradiation contain at least one photoinitiator and at least one compound having at least one isocyanate function.

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.