Abstract: The present invention discloses an endodontic sealer which comprises a urethane-monoacrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-monoacrylate oligomer is obtained by firstly reacting the acrylate with the diisocyanate to form an intermediate with only one isocyanate group, and then reacting the intermediate with the polyol to form the desired urethane-monoacrylate oligomer.

Abstract: Disclosed is a photopolymerizable resin composition. The photopolymerizable resin composition includes 40 to 80% by weight of a photopolymerizable urethane (meth)acrylate oligomer, 10 to 40% by weight of a low-viscosity multifunctional urethane acrylate oligomer, and 1 to 10% by weight of a photoinitiator. The photopolymerizable resin composition is cured by UV light to form a film whose shrinkage and expansion rates after immersion in hot water are low, leading to minimal changes in tensile strength and adhesive strength before and after water immersion. Further disclosed is an optical fiber using the photopolymerizable resin composition. The optical fiber undergoes minimal change in strip force before and after immersion in hot water.

Abstract: A variety of biomedical devices are provided which include thiol-ene or thiol-yne shape memory polymers. The biomedical devices of the invention are capable of exhibiting shape memory behavior at physiological temperatures and may be used in surgical procedures. Methods of making the devices of the invention are also provided.

Abstract: The present invention relates to dual curing compositions, which cure with moisture and photo radiation, such as UV light, and methods for preparing and using same. In particular, the compositions of the present invention contain a polyether or polyester backbone, photocurable portion(s) and moisture curable portion(s). The photo curable portion is a urethane or carbamate linkage terminated with a (meth)acryloxyalkyl group. The moisture curable portion is either: (1) a portion terminated with a polyalkoxysilyl group; or (2) a portion having a urea linkage terminated with an alkylpolyalkoxysilyl group.

Abstract: Various embodiments related to curable printing fluids are disclosed. One example embodiment provides a curable printing fluid composition for a thermal fluid ejection device, the composition comprising a curable liquid-phase monomer, a substantially nonaqueous volatile driver fluid capable of being vaporized by a thermal fluid ejection printhead, an initiator, a phosphate ester resistor protectant, and a colorant comprising a dye.

Abstract: Microstructured articles such as brightness enhancing film and turning films having a (e.g. brightness enhancing) polymerized structure comprising the reaction product an organic phase and at least 10 wt-% inorganic nanoparticles. The reaction product of the organic phase has a glass transition temperature of less than 35° C.

Abstract: Low viscosity, radiation curable fluid formulations that can be used advantageously as radiation curable, inks. The formulations are easily prepared for use in ink jet systems. The viscosity of the compositions is low enough so that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. After curing, the compositions form durable, weatherable, abrasion resistant, printed images on a wide variety of porous and nonporous substrates. The formulations are very suitable for outdoor printing applications, especially for printing outdoor graphics onto a variety of surfaces, including vinyl or other polymer films commonly used for signage, retroreflective signage or other retroreflective items.

Abstract: The present invention relates to a radiation curable and developable polyurethane which is characterized by having a carboxy group in its main chain and a acryloyl group in its side chain and comprising the following repeat units (I), (II), and (II) in a random arrangement: wherein R1, R2, R3, R4, and T are defined in the specification. The polyurethane has a weight molecular weight measured by GPC in a range of from 3,000 to 400,000; an acid value in a range of from 5 to 120 mgKOH/g. The present invention also relates to a radiation curable and developable composition containing the polyurethane.

Abstract: An adhesive sheet includes a substrate and an energy-ray curable adhesive layer formed on the substrate. The energy-ray curable adhesive layer includes an energy-ray curable acrylic copolymer and a urethane acrylate. The energy-ray curable acrylic copolymer is formed by copolymerizing at least one of either a dialkyl(meth)acrylamide that has an alkyl group with carbon number of not more than 4, a phenol EO modified (meth)acrylate that has an ethylene glycol chain with a phenyl group bonded to the ethylene glycol chain, a (meth)acryloyl morpholine, or a (meth)acrylate that has an aceto-acetoxyl group, in total of 1 to 30 weight percent of all monomers to form the energy-ray curable acrylic copolymer. The energy-ray curable acrylic copolymer further includes a side chain with an unsaturated group.

Abstract: A composition usable as a moisture absorbent for an organic electroluminescence device. A photocurable hygroscopic composition comprising (a) a moisture-reactive organic metal compound, (b) a (meth)acrylate, (c) a carboxyl group-containing polymerizable monomer, and (d) a photopolymerization initiator. The proportion of the moisture-reactive organic metal compound (a) is from 5 to 70 wt % based on the entire composition, and the proportion of the carboxyl group-containing polymerizable monomer (c) is from 0.1 to 50 mol % based on the moisture-reactive organic metal compound (a).

Abstract: The present invention provides visible light curing systems, methods for reducing health risks to individuals exposed to radiation curing systems, methods for bonding substrates and visible light curing compositions.

Abstract: A composition of an anti-glare coating has a resin, multiple particles and a dispersant. The resin is selected from the group consisting of thermosetting resin and light-curing resin. The particles have a dimension that is from about 30 nanometers (nm) to about 10 micrometers (?m). Because the dispersant stabilizes and keeps a separation distance between each two particles, the particles cannot aggregate in or precipitate out of the anti-glare coating. Thus, the anti-glare coating can be coated easily on the substrate and a surface of the anti-glare film is uniform to provide an improved anti-glare effect. Moreover, the dispersant allows adjustment of haze, gloss and distinctness of image of a substrate coated with the anti-glare coating.

Abstract: Disclosed is a radiation curable ink containing a fluorescent material that upon exposure to activating energy fluoresces such that an image that was not visible prior to exposure to the activating energy becomes visible. Also disclosed are an ink jet system and a process printing the disclosed radiation curable ink.

Abstract: Radiation curable and jettable ink compositions comprise ethylenically unsaturated oligomer and an ethylenically unsaturated monofunctional monomer. The compositions may optionally include additional ethylenically unsaturated polyfunctional component and/or chain transfer agent. The compositions have a viscosity at 25° C. of not greater than about 70 cPs and are radiation curable to form a cured ink having an elongation of at least 150%.

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: A composition for use in laser decomposition includes (A) at least one of a polymer having a nitrogen atom-containing hetero ring and a polymerizable compound having a nitrogen atom-containing hetero ring; and (B) a metal ion.

Abstract: The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against cavitation. In particular, the primary coatings have a cavitation strength at which a tenth cavitation appears (?10cav) of at least about 1.0 MPa as measured at a deformation rate of 0.20% min?1 and of at least about 1.4 times their storage modulus at 23° C. The coating preferably shows strain hardening in a relative Mooney plot, preferably has a strain energy release rate Go of about 20 J/m2 or more, and preferably has a low volumetric thermal expansion coefficient. The invention furthermore provides a method and apparatus for measuring the cavitation strength of a primary coating.

Abstract: The invention relates to a radiation-curable primary coating composition comprising 0.6-10 vol % of particles which when cured has an equilibrium modulus of about 1.5 MPa or less, and a cavitation strength at which a tenth cavity appears (?10cav) of at least about 1.1 MPa.

Abstract: A photo-sensitive adhesive for a flexible liquid crystal display is provided, comprising the following components: an urethane oligomer; a reactive monomer with phenyl group; and a photo-initiator. In an embodiment, the phenyl group of the reactive monomer has a weight ratio of 40 wt %, base on the total weight of the reactive monomer.

Abstract: A radiation curing composition suitable for building a three-dimensional object by a solid freeform method is disclosed. The composition includes one or more mono-functional monomers where a respective polymer has a Glass Transition Temperature higher than about 60° C. and one or more di-functional oligomers where a respective polymer has a Glass Transition Temperature lower than about 40° C. The functional groups of the components may include meth(acrylic) and the composition has a viscosity of about 50-500 cps at ambient temperature. Further, the concentration of the mono-functional monomer may be at least 30% by weight and the concentration of the di-functional oligomer may be at least 20% by weight.

Abstract: This invention relates to a photo-curing or electron beam-curing adherent resin composition being excellent in the adhesiveness to various adherends such as metal oxide, metal, resin and so on, and more particularly to an adherent resin composition of a photo-curing or electron beam-curing type comprising a difunctional urethane (metha)acrylate oligomer (A) and a monomer component (B), characterized in that the urethane (metha)acrylate oligomer includes a urethane prepolymer portion composed of a polyol and a polyisocyanate wherein repetitive number of urethane prepolymer portion (n) is 10-30, and the monomer component (B) is a cyclic monomer having a (metha)acryloyl group.

Abstract: The present invention provides an ink composition including a polymerization initiator and a monofunctional (meth)acrylate having a —CONH— bond in the molecule thereof. The present invention also provides an ink jet recording method and a planographic printing plate producing method using the ink composition, and a planographic printing plate prepared by the planographic printing plate producing method.

Abstract: A radiation curable ink includes a curable monomer or oligomer, a curable wax, a colorant, and at least one initiator.

Abstract: A radiation-curable composition comprising a radiation-curable compounds a free acid and a halogenated polyolefin is disclosed. The compositions are useful in the repair of damaged motor vehicle body parts.

Abstract: The present disclosure is directed to a process for forming a reinforced ultraviolet (UV) radiation-curable composite. The composite may be formed by applying reinforcing layers and resin layers to a substrate. The resin composition may include an aliphatic urethane acrylate oligomer, a polyfunctional acrylate monomer, and a photoinitiator. The composite formed on the substrate may be exposed to UV radiation to cure the composite on the substrate. The composite may be characterized in that it is cured within 10 minutes of exposure to UV radiation and does not exhibit oxygen inhibition effects, such as, for example, surface tack. The reinforced UV-curable composite may find utility, for example, as a rapid field repair patch in aerospace applications, among others.

Abstract: A curable sheet composition able to follow up a mold shape under the application of heat and pressure, able to polymerize and cure upon being irradiated with light, permitting an optical element molding pattern to be fixed, and comprising 50% to 94% of a polycarbonate diol-modified urethane acrylate oligomer, 5% to 40% of a (meth)acrylate containing at least one carboxyl group in each molecule thereof, and 0.5% to 5% of a photopolymerization initiator.

Abstract: A photo curable ink composition set, comprising: an ink composition A that includes at least a color material, a polymerizable compound, and a radical polymerization photoinitiator; and an ink composition B that includes at least a radical polymerizable compound and does not include the color material and the radical polymerization photoinitiator, wherein the ink composition A and/or B includes a sensitizer.

Abstract: Photocurable coating materials of the invention are cured with UV lights, electron beams, radiations and the like and are excellent in heat discoloration resistance, adhesion to substrates, abrasion resistance, water resistance and impact resistance. A photocurable coating material includes 5 to 95 parts by weight of a urethane acrylate (U), 5 to 95 parts by weight of an acrylate compound (M) and, based on 100 parts by weight of the total of (U) and (M), 0.1 to 15 parts by weight of a photoinitiator (C), the urethane acrylate (U) at least containing one or more diisocyanates (a) selected from the group consisting of hydrogenated xylylene diisocyanate and hydrogenated methylenebisphenylene diisocyanate and a compound (b) having a hydroxyl group and a (meth)acrylate group, the acrylate compound (M) having two or more acrylate groups in the molecule, an acrylate group content of 5 to 12 mmol/g and no aromatic ring structure.

Abstract: Disclosed is an active energy ray-curable coating composition containing (A) 10 to 70% by mass of a poly(meth)acrylate of a mono- or polypentaerythritol; (B) 5 to 50% by mass of (B-1) a polyester type aliphatic urethanedi(meth)acrylate compound which is obtained by reacting an aliphatic isocyanate compound, a caprolactone-modified polyester diol, and an acrylate having a hydroxyl group, (B-2) a compound represented by formula (2), or (B-3) a polyether type urethane di(meth)acrylate compound having two (meth)acryloyloxy groups in a molecule, wherein, in the case that component (B) is component (B-3), component (A) contains at least one caprolactone-modified (meth)acryloyloxy group; (C) 5 to 70% by mass of a poly[(meth)acryloyloxyalkyl](iso)cyanurate represented by formula (3) or (4); and (D) 0.1 to 10% by mass of a photopolymerization initiator. The active energy ray-curable coating composition can form a cured film excellent in weatherability, mar resistance, and adhesion to a base material.

Abstract: An active energy ray curable resin composition for a sheet-like optical article capable of providing a cured material having a dynamic elastic modulus at 25° C. of 950 MPa or less and a dynamic elastic modulus at 60° C. of 100 MPa or more and a sheet-like optical article prepared from the resin composition are disclosed. The sheet-like optical article (e.g., prism sheet) has good heat resistance and extremely small warpage.

Abstract: The present invention provides water repellant curable compositions comprising (i) one or more polyacid comprising at least two carboxylic acid groups, anhydride groups, or salts thereof, (ii) one or more polyol comprising at least two hydroxyl groups, (iii) one or more reactive waterproofing agent chosen from a C5 to C30 alk(en)yl 2-hydroxyethyl (alk(en))amide, C5 to C30 alk(en)yl bis(2-hydroxyethyl)amide, C11 to C30 alk(en)yl 2-hydroxyethyl (alk(en))amine, C11 to C30 alk(en)yl bis(2-hydroxy-ethyl)amine, C11 to C30 alk(en)yl tris(2-hydroxyethyl)amine, C5 to C30 alk(en)yl monoglyceride, C5 to C30 alk(en)yl monocarboxylate of a trihydric polyol, and mixtures thereof, and, (iv), optionally, one or more phosphorous-containing accelerator, wherein the ratio of the number of equivalents of said carboxylic acid groups, anhydride groups, or salts thereof to the total number of equivalents of said hydroxyl groups is from 1/0.01 to 1/3.

Abstract: An optical fiber having: a) a glass portion; and b) at least one protective coating layer disposed to surround the glass portion, the protective coating layer having a modulus of elasticity value between ?40° C. and +60° C. between 5 MPa and 600 MPa, preferably not higher than 500 MPa, more preferably not higher than 450 MPa and much more preferably not higher than 300. Preferably the protective coating layer is a single protective coating layer which is disposed in contact with the glass portion.

Abstract: A curable printing fluid composition for a thermal fluid ejection device is disclosed, wherein the printing fluid composition comprises a curable liquid-phase monomer, a volatile driver fluid capable of being vaporized by a thermal fluid ejection printhead, and a resistor protectant.

Abstract: An energy-core ink or varnish composition is provided for use in an in-mold decoration (IMD) process, comprising an energy-curable resin, additional reactive monomers and/or oligomers and, optionally and in an amount not exceeding 10% by weight, a solvent, wherein the resin comprises a urethane acrylate oligomer having an aromatic or aliphatic polycarbonate backbone. For inks, the composition additionally includes a pigment or dye. For photocure compositions, a photoinitiator is also included. Also provided is an in-mold decoration (IMD) process employing the ink or varnish composition.

Abstract: The invention relates to a biocompatible, low-viscosity, radiation-curable formulation for producing medical products, in particular adaptive ear pieces, otoplastic parts, shells or ear parts, by means of PNP methods or stereolithographic methods. Said formulation comprises: a) 15-60 wt. % of a monomeric or oligomeric dimethacrylate based on bisphenol A or bisphenol F; b) 0-50 wt. % one or more monomeric or oligomeric urethane (meth)acrylates with a functionality n<4, a viscosity <30 Pa s and a molecular weight <3500; c) 2-25 wt. % of a monomeric, aliphatic or cycloaliphatic dimethacrylate with a viscosity <3 Pa s; d) 2-35 wt. % of an iminooxadiazone dion derivative, characterised by 3 methacrylate and/or acrylate functions; 0-15 wt. % one or more monofunctional methacrylates; f) 0.5-6 wt. % of a photo initiator or a combination of photo initiators, whose absorption lies in the wavelength range of the laser beam that is used or the irradiation source; g) 0-0.5 wt.

Abstract: A high-solid UV-curable coating composition of the present invention, comprising a low viscosity multifunctional urethane acrylate oligomer, a UV-curable monomer, 10% by weight or less of an organic solvent and a photoinitiator has good workability and environmental characteristics and provides a coating film having improved properties including thermal shock resistance.

Abstract: The invention relates to a radiation curable composition including a polyester urethane (meth)acrylate oligomer prepared from ortho-carboxylic polyester polyols, where the composition, after cure, has a secant modulus greater than about 600 MPa and an elongation at break of at least about 10%. The invention also relates to coated optical fibers and optical fiber ribbon including at least one coating derived from this composition, and to a process of making these coated optical fibers.

Abstract: A polyurethane resin is synthesized from a compound represented by the following Formula (1), a polymerizable composition includes the polyurethane resin, a planographic printing plate precursor includes a photosensitive layer including the composition, and a method produces a diol compound that can be used as a raw material of the polyurethane resin. In Formula (1), R1 and R2 each independently represent a single bond or an alkylene group optionally having a substituent, R3 represents a hydrogen atom or an alkyl group, R4 represents a hydrogen atom or an alkyl group, and A represents a divalent or higher linking group, provided that R1 and R2 are not both a single bond.

Abstract: Compositions for protective films for optical disc are provided. Compositions for protective films, particularly compositions for protective films for optical discs having low viscosity and low shrinkage without compromising scratch resistance even when a dilution solvent is not used. The compositions for protective films for optical discs include a composition for protective films containing a UV-curable acrylic radical-based resin as the main component including a multifunctional acrylic monomer, a multifunctional acrylic oligomer and a bifunctional acrylic monomer containing repeating units including at least one of an ethoxy and propoxy group as starting materials for the acrylic radical-based resin; and a photoinitiator.

Abstract: A photocurable composition comprising cationically curable compound, an acrylate-containing compound; a hydroxyl-containing compound; a cationic photoinitiator; and a free radical photoinitiator; wherein said composition has less than 0.54 equivalents of cationically curable groups, less than 0.10 equivalents of acrylate groups and less than 0.10 equivalents of hydroxyl 0groups per 100 grams of said composition.

Abstract: A method of manufacturing super-absorbent polymer (SAP) which is powdery, insoluble in water, and able to absorb water, blood and urine with slight soluble substances. The method includes at least the following steps: mixing a monomer solution having at least 50 mol % of neutralized acrylic acid with polymerization initiators to synthesize a sticky precursor, wherein the monomer can be selected from acrylic acid, methacrylic acid, 2-acrylamido-2-methyl-propane sulfonic acid, or the mixtures thereof; mixing high hydrophilic epoxy compounds and polymerization initiators with the precursor and producing a gel via UV cross-linking; drying the gel at temperature of 100 to 250° C. to obtain a polymer; grinding and screening the polymer into constant particle size; coating the polymer with surface cross-linking agents; heating the polymer at temperature of 80 to 230° C.; and adding powdery inert inorganic salts into the polymer.

Abstract: The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against cavitation. In particular, the primary coatings have a cavitation strength at which a tenth cavitation appears (?10cav) of at least about 1.0 MPa as measured at a deformation rate of 0.20% min?1 and of at least about 1.4 times their storage modulus at 23° C. The coating preferably shows strain hardening in a relative Mooney plot, preferably has a strain energy release rate Go of about 20 J/m2 or more, and preferably has a low volumetric thermal expansion coefficient. The invention furthermore provides a method and apparatus for measuring the cavitation strength of a primary coating.

Abstract: The present invention relates to a process for preparing low-viscosity, allophanate-containing and NCO-free polyurethane prepolymers curable by actinic radiation, and to the products obtainable by this process. The prepolymers have residual monomer contents of less than 0.5% by weight and an NCO content of less than 1% by weight, and are prepared by a process in which A) diisocyanates, B) hydroxy-functional compounds containing groups which react with ethylenically unsaturated compounds on exposure to actinic radiation, and C) polyester, polyether or polycarbonate polyols having a functionality of at least 1.

Abstract: A photo-curable adhesive composition including an oligourethane acrylate in a range of about 10 to about 30% by weight, a reactive monomer-diluent in a range of about 32 to about 46% by weight, a polymeric filler in a range of about 20 to about 30% by weight, a photoinitiator in a range of about 2.5 to about 5.0% by weight, an antioxidant in a range of about 0.005 to about 0.02% by weight, a chlorinated polyvinyl chloride in a range of about 3.0 to about 10%, the chlorinated polyvinyl chloride having a chlorine content of about 62 to about 64% by weight, oxalic acid in a range of about 0.3 to about 2.0% by weight, a thixotropic agent in a range of about 0.5 to about 3.0% by weight, and a plasticizer in a range of about 1.0 to about 10.0% by weight, based on the total weight of the composition.

Abstract: A radiation-curable desiccant-filled adhesive/sealant composition comprising a radiation-curable resin, one or more desiccant fillers, one or more photoinitiators or photosensitizers, and optionally, one or more inorganic or organic fillers.

Abstract: Adhesive compositions useful for laminating cellulosic substrates are formulated using an aqueous emulsion of a vinyl ester polymer such as polyvinyl acetate, one or more monomers or oligomers functionalized with (meth)acrylate groups, and a photoinitiator. The adhesive is cured by drying and exposing the adhesive to UV or visible light and is particularly useful for attaching clear films to cellulosic substrates such as paper and boxboard (e.g., in the manufacture of envelopes or folding cartons having windows).

Abstract: To provide a dental restorative material composition using an organic-inorganic composite filler having excellent surface smoothness like a natural tooth, low polymerization shrinkage, excellent X-ray contrast imaging property, similar transparency to that of a natural tooth, and no variation of transparency before and after the composition is hardened, the dental restorative material composition includes (a) a (meth)acrylate monomer, (b) an organic-inorganic composite filler having an average particle diameter of 5 to 50 ?m which is made by mixing a (meth)acrylate monomer and a fine particle filler having an average primary particle diameter of 0.005 to 0.3 ?m and having X-ray impermeability, (c) a fine particle filler having an average primary particle diameter of 0.005 to 0.04 ?m, and (d) a photopolymerization initiator.

Abstract: Radiation-curable formulations leading to flexible coatings with enhanced corrosion control on metal substrates. The invention relates to radiation-curable formulations which in the cured state offer a particular degree of corrosion control for metallic substrates and at the same time are sufficiently flexible for deformation.

Abstract: The present invention relates to a radiation curable resin composition which comprises epoxy (meth)acrylate, a monofunctional (meth)acrylate, a bifunctional (meth)acrylate having a specific structure, and a bifunctional (meth)acrylate obtained from an aliphatic dihydric alcohol having an oxyalkylene structure and (meth)acrylic acid and further contains a thermoplastic resin, thereby causing satisfactory adhesion to plastic substrates, sufficient shape retention, and excellent shape recovery properties, and satisfaction in moldability including casting efficiency and shape reproducibility, as well as a high refractive index and appropriateness for use as a lens sheet.

Abstract: A curable composition and method for producing a tear resistant, yet soft and deformable in-the-ear product yielding the user greater comfort and durability. The curable composition incorporated into a hearing aid apparatus provides a deformable, yet tear resistant housing, which may be mated to a soft tip component. The hearing aid housing provides better comfort, durability and acoustic performance for a variety of ear canal shapes. The curable composition that provides these properties includes at least one urethane acrylate oligomer, at least one reactive diluent and a cure system. The composition when cured desirably produces a tear strength of at least about 75 pli and a hardness of about Shore A 60 to about 75.