Abstract: A method of preparing fiber sheet molding compounds with a fabric of continuous fiber reinforcement that can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in solid acrylic resin. The acrylic resin functions as a thickener which delays the viscosity build allowing the fabric of continuous fiber reinforcement to be incorporated before molding.

Abstract: It is an object of the present invention to provide a compound having a (meth)acryloyl group that is suitably used in various applications, a process for producing such compound simply and under mild conditions, and an useful photo-curable composition and aqueous photo-curable composition comprising such compound.

Abstract: A radiation curable ink jet ink having a viscosity not greater than 35 mPa.s at 30° C. and comprising a colorant component, a diluent consisting essentially of reactive liquid material and, optionally, at least one photopolymerization catalyst and wherein the reactive liquid material is formed of both monofunctional and polyfunctional material and comprises 5 to 30% by weight of at least one oligomer.

Abstract: A curable resin composition comprises a poly(arylene ether), an acryloyl monomer, an allylic monomer, and an abrasive filler. The composition tolerates high filler contents, cures rapidly, and exhibits excellent toughness after curing. Useful articles prepared from the composition include grinding wheels and cut-off wheels having good wear characteristics.

Abstract: The invention provides an organic/inorganic hybrid material with low optical loss at telecommunications wavelengths. Energy curable compositions of the present invention include condensed silica nanoparticles, a fluorinated silane coupling agent, an energy curable silane coupling agent, and a halogenated monomer or oligomer. Polymeric materials of the present invention include condensed silica nanoparticles having a mixture of organosilane coupling agents covalently bound to the exterior surface of the nanoparticles and a halogenated solid polymer matrix, wherein the mixture of organosilane coupling agents includes an at least partially fluorinated coupling agent, and a coupling agent covalently bound to the polymer matrix. The materials of the present invention are useful in making low-loss optical devices for telecommunications applications.

Abstract: An ink-jet ink is provided including an ink jet vehicle and a colorant. The vehicle includes at least 35% by weight radiation curable material, based on the total vehicle weight. The vehicle may but does not necessarily include a thickener. The vehicle is a paste or a solid at 20° C. and has a viscosity of less than 25 centipoise between 40° C. and 130° C.

Abstract: A dental adhesive composition comprising: (A) 100 parts by weight of a polymerizable unsaturated monomer containing 5% by weight or more of a radical polymerizable monomer having an acid group; (B) 35 to 100 parts by weight of an acid-reactive filler; (C) 35 to 100 parts by weight of water; (D) 5 to 100 parts by weight of a water-soluble organic solvent; and, (E) 0.1 to 10 parts by weight of a polymerization catalyst.

Abstract: A photocurable primer composition containing (A) an acrylic resin having through an urethane linkage a polymerizable unsaturated group on its side chain and containing the polymerizable unsaturated group in an amount of 0.2 to 2.0 mol/kg in a solid content of the resin (A), (B) an urethane (meth)acrylate oligomer containing at least one polymerizable unsaturated group in one molecule, and (E) a photopolymerization initiator, and a coating method.

Abstract: Compositions for use in the manufacture of 3-D objects including compositions for use as a support and/or release material in the manufacture of said 3-D objects are provided. The compositions for use in the manufacture of 3-D objects comprise at least one reactive component, at least one photo-initiator, at least one surface-active agent and at least one stabilizer. The compositions for use as a support and/or release material comprise at least one non-reactive and low-toxicity compound, at least one surface-active agent, at least one stabilizer and optionally at least one reactive component and at least one photo-initiator. Methods for manufacturing a 3-D object using the compositions of the present invention are also provided.

Abstract: The present invention is a short time curing method of epoxy resin compositions composed of epoxy resins with more than 1.8 epoxy groups and curing agents which can react with epoxy groups and cure the epoxy resins at ambient temperatures or under the temperature raising conditions radiating microwave in the range of 300 MHz to 30 GHz frequency.

Abstract: The invention provides organic coatings with improved scratch resistance. More particularly, the present invention relates to the use of inorganic filler materials of a defined type and particle size which can be added to curable organic coatings to improve the scratch resistance of the coating without a negative impact on the physical and performance properties or application parameters of the original coating material.

Abstract: The application relates to a photo-curable composition comprising: (A1) zirconium oxide particles or composite oxide particles containing zirconium and (B) a compound having two or more polymerizable unsaturated groups In the molecule, wherein the composition does not substantially contain a photo-radical polymerization initiator, and to cured products produced by curing the photocurable composition.

Abstract: A photoimageable composition comprising finely divided particles of inorganic material comprising coated silver particles that are at least partially coated with at least one surfactant and inorganic binder dispersed in organic medium comprising an aqueous developable polymer, photo-initiation system and organic solvent.

Abstract: A photocurable and thermosetting composition which is useful in forming a matte film and can be developed with an aqueous alkaline solution is provided. The composition comprises (A) a photosensitive prepolymer obtained by causing a saturated or unsaturated polybasic acid anhydride to react with a hydroxyl group of an esterification product of a novolak type epoxy compound and an unsaturated monocarboxylic acid, (B) a carboxyl group-containing copolymer resin, (C) a photopolymerization initiator, (D) a diluent, (E) a polyfunctional epoxy compound having at least two epoxy groups in its molecule, and, when necessary, (F) an inorganic filler. The composition may further comprise (G) an epoxy resin curing agent. This composition can be advantageously used for the formation of a solder resist on a printed circuit board.

Abstract: There is provided a photo-curable, electrically conductive composition which is capable of forming a lower layer (black layer) electrode circuit satisfying both the sufficient conductivity and blackness after calcination in the formation of an electrode on a front substrate of a plasma display panel (PDP). The composition comprises, in the first fundamental mode thereof, (A) electrically conductive black fine particles having a specific surface area of more than 20 m2/g,(B) anorganic binder, (C) a photopolymerizable monomer, and (D) a photopolymerization initiator, and in the second mode further comprises (E) inorganic fine particles besides the above components.

Abstract: A resin composition comprising: (A) particles prepared by bonding at least one oxide of an element selected from the group consisting of silicon, aluminum, zirconium, titanium, zinc, germanium, indium, tin, antimony, and cerium, and an organic compound which includes a polymerizable unsaturated group, (B) an oligomer-type radiation polymerization initiator having a site which generates photo-radicals by irradiation of radioactive rays, and (C) a compound having at least two polymerizable unsaturated groups in the molecule.

Abstract: A method of priming a sheet molding compound (SMC) part. The method includes applying a photopolymerizable priming composition to a surface of the SMC part. The priming composition includes a polymerizable component, a photoinitiating component, and a conductive component. The method also includes irradiating the priming composition with light to initiate a polymerization reaction. The priming composition polymerizes on the SMC part substantially without releasing volatile solvents.

Abstract: A radiation-curable composition for an ink base, ink composition, outer primary composition, buffering material or matrix material for fiber optics includes, in the uncured state, a secondary amino or tertiary amino silicone-containing additive.

Abstract: Low viscosity, radiation curable urethane oligomer, preferably a radiation curable polyester urethane oligomer, that can be incorporated into radiation curable ink compositions. Preferred embodiments are suitable for ink jetting applications. The ink jettable embodiments are particularly well-suited for use in piezo ink jet printers. The viscosity characteristics of the compositions are such that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. The oligomer generally is a reaction product of ingredients comprising an aliphatic polyisocyanate; and a radiation curable, polyester alcohol comprising one or more radiation curable moieties, one or more hydroxyl moieties, and one or more ester moieties.

Abstract: A resist composition for permanent protective coating of a printed wiring board, which resist composition is excellent in flame resistance and is obtained by incorporating as essential components a flame retardant containing 100 to 140 parts by weight of (a) aluminum hydroxide, 0.1 to 15 parts by weight of (b) a molybdenum compound and 0.1 to 10 parts by weight of (c) a zinc stannate type compound into 100 parts by weight of a resin.

Abstract: New photocationic photoinitiator combinations are described that consist of 2,4,6-triarylpyrylium salts with non-nucleophilic anions and electron donors, that are able rapidly to crosslink unpigmented as well as pigmented mixtures based on cycloaliphatic epoxides to form colourless layers such as lacquers and printing inks without generating interfering and toxic emissions.

Abstract: A binder composition for a photocatalytic coating is disclosed. The binder composition comprises 60-80 wt. % of a first monomer which is a non-fluoro containing monomer selected from the group consisting of acrylic monomers, methacrylic monomers, and mixtures thereof, having an aliphatic group and 20-40 wt. % of a second monomer which is at least one monomer selected from the group consisting of a fluoro containing monomer and a silicone monomer. The fluoro containing monomer is selected from the group consisting of styrene monomer, acrylic monomer and methacrylic monomer.

Abstract: This invention provides improved methods and compositions for achieving material coloration using particle scattering. These coloration effects can be designed to be either highly stable or dependent upon the switching effects of either temperature, integrated thermal exposure, moisture absorption, or exposure to actinic radiation. Articles employing materials with these coloration effects are described. Composition comprise a solid, light-transmitting matrix component having a non-liquid particle scattering colorant dispersed. Articles are produced wherein another solid second matrix component has an electronic transition colorant dispersed therein and the first and second compositions are disposed on one another and optionally interpenetrate each other. Colored articles are produced in the form of fibers, films and molded articles.

Abstract: The present invention discloses a method for fabricating an electroluminescent lamp that includes a step in which an electroluminescent active layer is formed by curing a UV curable electroluminescent composition. Embodiments of the method of the present invention in which each layer of a multilayer electroluminescent device are fabricated from UV curable compositions are also disclosed. A UV curable dielectric composition suitable for utilization in an electroluminescent lamp is also provided.

Abstract: Described are chiral liquid crystalline polymer materials and polymerizable compounds used for preparing them. The polymer materials can serve as a carrier material or are coated onto a carrier material. Also described are methods of making such material and using them to make pigment flakes used in paints, printing inks, spray paints, cosmetic products, colored plastics, optical elements and security applications.

Abstract: A curable resin composition comprises a poly(arylene ether), an acryloyl monomer, an allylic monomer, and an abrasive filler. The composition tolerates high filler contents, cures rapidly, and exhibits excellent toughness after curing. Useful articles prepared from the composition include grinding wheels and cut-off wheels having good wear characteristics.

Abstract: A resin composition for denture is provided, which does not require operations for weighing, and mixing during the use; is free from involving of air bubbles; and when used for preparation of a denture base, is free from a reduction in physical properties and staining or discoloration with a lapse of time. Further, a completed denture has a high elastic energy value, is superior in impact resistance, and when applied with an impact or a stress as in the case of dropping, is not readily broken. The resin composition for denture base is in a one-paste state and is constructed by (a) a polymerizable monomer and/or oligomer having a modulus of elasticity at polymerization of 0.25 to 3.00 GPa, (b) an organic filler and/or an organic-inorganic composite filler having a modulus of elasticity of 0.25 to 3.00 GPa, and (c) a polymerization initiator made of a heat polymerization type polymerization initiator and/or a photopolymerization type polymerization initiator, and optionally, (d) an inorganic filler.

Abstract: The present invention discloses an ultraviolet light curable paint composition and method for applying and making such a composition to a substrate. Suitable substrates include glass, metals, and various plastics such as polycarbonates. The disclosed composition does not contain any significant amount of volatile organic solvents that do not become incorporated in the coating or are released to ambient after curing.

Abstract: A photo-curing ink composition comprises a photocation-polymerizable substance, a photocation polymerization initiator, and a surfactant having a functional group. The surfactant is selected and the amount thereof is adjusted so that the acid value per 100 g of the ink composition is not more than 150 mg KOH. The surfactant is selected and the amount thereof is adjusted so that the amine value per 100 g of the ink composition is not more than 23 mg KOH. The ink composition is excellent in dispersion performance, storage stability, and curing performance.

Abstract: The invention relates to thermoplastic polyolefin compositions having enhanced surface durability and products thereof which include a thermoplastic polyolefin base component at least one radiation-crosslinkable component present in an amount sufficient to enhance the surface durability of the thermoplastic polyolefin component when radiation-cured and at least one photoinitiator present in an amount sufficient to initiate crosslinking of the radiation-crosslinkable component upon exposure of the thermoplastic polyolefin composition to radiation.

Abstract: A paste composition, including a binding agent charged with metallic powder, to be used in a solid freeform fabrication procedure, comprising:

Abstract: Photoinitiator combinations comprising at least one compound of formula (I)  wherein R1 is C1-C4alkyl, C1-C4alkoxy or halogen; R2 is hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen; R3 is, for example, C1-C20alkyl, cyclopentyl, cyclohexyl, phenyl-C1-C4alkyl, naphthyl or biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; and at least one compound of formula (II)  wherein R1 and R2 are as defined above; R9 is, for example, C1-C20alkyl, cyclopentyl, cyclohexyl, phenyl-C1-C4alkyl, naphthyl, biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; and R10 is, for example, C1-C20alkyl, C2-C20alkyl interrupted by one or more O atoms, cyclopentyl, cyclohexyl, phenyl-C1-C4alkyl, naphthyl, biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; are reactive photohardeners causing only a low degree of yellowing in the cured substrates.

Abstract: A photocurable composition comprising (A) 100 parts by weight of a compound having an ethylenically unsaturated group, (B) from 0.001 to 5 parts by weight of a cationic dye having an absorption maximum wavelength in the wavelength region of from 400 to 1,200 nm represented by formula (1: D+·A1−  (1) wherein D+ represents a cation having an absorption maximum wavelength in the wavelength region of from 400 to 1,200 nm, and A1 31 represents an anion, and (C) from 0.

Abstract: The present invention relates to a novel photoinitiator system comprising one or more acylphosphine oxide photoinitiators and one or more lightfast red, blue or violet organic pigments. Low yellow color formation results upon curing ethylenically unsaturated compounds with the new photoinitiator system. Particular applications include clear and white coatings, screen inks, gel coats, powder coatings, composites, adhesives and lenses.

Abstract: Provided herein are cross-linked super absorbing polymers made by reacting a copolymer having an esterifiable acid group with a cyclic alkylene carbonate. The resulting cross-linked materials have an increased ability to retain absorbed liquids even under the influence of applied stress. Catalysts are also disclosed which are useful in promoting the reaction between the alkylene carbonate and copolymer.

Abstract: A radiation—and/or heat-curable adhesive with high thermal conductivity includes the following recipe: 19 to 40 wt % of a difunctional acrylated, aromatic polyurethane; 9 to 25 wt % of (2-hydroxypropyl) acrylate or methacrylate; 1 to 5 wt % of one or more photoinitiators; 35 to 70 wt % of one or more mineral fillers; 0.5 to 3 wt. % of an SiO2-containing thixotropizing agent; and 0.5 to 2 wt % of an organic peroxide.

Abstract: Provided is a radiation-curable, glass optical fiber coating composition which when suitably cured exhibits resistance to attack from hydrocarbon gel cable filing material. The composition contains about 10 to about 90% by weight of a first radiation-curable oligomer; from 0 to about 40% by weight of a reactive diluent; from 0 to about 40% by weight of a photoinitiator; from 0 to about 10% by weight of a pigment; and about 10 to about 90% by weight of a second radiation-curable oligomer according to the following formula: R1-L1-C1-L2-R2  (1) where: R1 and R2, independently, each represent a radiation-curable functional group; L1 and L2, independently, each represent an an alkyleneoxy chain having from about 2 to about 40 carbon atoms, wherein L1 and L2 are linked to C1 through an oxygen atom C1 comprises a hydrocarbon having from about 5 to about 40 carbon atoms and containing at least one cyclic group.

Abstract: Polymerizable composition that include: (a) a cationically active functional group; (b) an initiation system capable of initiating cationic polymerization of the cationically active functional group; and (c) a filler composition that includes various radiopacifying fillers in an amount sufficient to render the polymerizable composition radiopaque. Components (a), (b), and (c) are selected such that the polymerizable composition polymerizes to form a polymerized composition having a Barcol hardness, measured using a GYZJ-935 meter, of at least 10 within 30 minutes following initiation of the cationically active functional group are a reaction temperature of 25° C.

Abstract: A radiation curable, flexible, paintable composition produced from epoxy compounds and one or more polyol(s) has enhanced durability, thick and thin film adhesion, resistance to mold growth and dimensional changes while reducing solvent emissions. The composition can reduce, if not eliminate, runs and drips during the thermal bake cycles which are associated with using conventional compositions in automotive applications.

Abstract: The invention discloses methods for making foams comprising functionalized metal oxide nanoparticles by photopolymerizing or thermally polymerizing emulsions comprising a reactive phase and a phase immiscible with the reactive phase components. Foams made from water-in-oil emulsions, including high internal phase emulsion are also disclosed. Articles and uses for the foams are also described.

Abstract: Coating compounds curable by means of high-energy radiation, comprising as binder

Abstract: This invention provides a colored photosensitive composition comprising a colorant (A), a binder polymer (B) containing monomer unit having oxetane structure, a photo-polymerizable compound (C) and a photo-polymerization initiator (D), and, using the colored photosensitive composition of the invention, color pattern having excellent solvent resistance can be formed even when the colored photosensitive composition contains the colorant (A) in a high concentration.

Abstract: Methods, systems, and compositions that make it possible to form high resolution, pressure sensitive adhesive patterns or films on a wide range of substrates. The compositions generally incorporate a curable, fluid composition (i.e., pressure sensitive adhesive precursor). When cured, a pressure sensitive adhesive is formed. Ink jet printing and subsequent curing allows pressure sensitive adhesive features to be formed with high resolution and tremendous flexibility in the patterns by which adhesive features may be formed. Preferred embodiments of the invention incorporate rheology modifying agents that can be used to promote favorable dot gain and other printing characteristics, the ability to build print thickness, and mechanical properties of resultant cured adhesives.

Abstract: Disclosed herein is a game ball, such as a golf ball, having an indicia formed from a UV curable ink containing aluminum trihydroxide (ATH) filler. The ATH improves pad transfer of the ink. An ink composition suitable for pad printing, and a method for applying an indicia to a game ball also are disclosed. The UV curable ink has excellent pad transfer properties, and good durability.

Abstract: There are provided a composition for coating which can form an ink receiving layer having excellent adhesion with hydrophobic substrates, water-resistance and printing stability, and an optical recording medium having an ink receiving layer formed from this composition. The composition contains a radiation-curable compound (A) composed of 50 to 90% by weight of a monofunctional (meth) acrylic monomer and 10 to 50% by weight of a multifunctional (meth) acrylic monomer, a water-absorbing organic filler (C) in an amount of 10 to 60% by weight relative to (A), and a water-absorbing inorganic filler (D) in an amount of 1 to 20% by weight relative to (A). This composition is applied on a protecting film (6) and cured to form an ink receiving layer (7), to obtain an optical disk (1).

Abstract: A method of preparing fiber reinforced acrylic thickened compositions which can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in high molecular weight solid acrylic resin in the form of large particles. The acrylic resin functions as a thickener which delays the viscosity build allowing fiber reinforcement to be incorporated before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.

Abstract: A resin composition comprises a thermoplastic resin, a non-terpene-series higher fatty acid or a derivative thereof and a black pigment. As the higher fatty acid or derivative thereof, use can be made of, for example, a saturated higher fatty acid having about 12 to 30 carbon atoms or a metal salt thereof. As the thermoplastic resin, use can be made of, for example, an acrylic resin A and a styrenic resin B. As the black dye or pigment, use can be made of, for example, carbon black. The resin composition may contain a dye or pigment such as titanium oxide. A clearly defined white marking is developed on the above resin composition by laser irradiation.

Abstract: Curable compositions that are particularly suitable for coating plastic ophthalmic lenses includes (a) 20% to 80% of a first acrylated aliphatic urethane; (b) 5% to 50% of a monofunctional acrylate; (c) (i) 2% to 30% of a second acrylated aliphatic urethane or (ii) 2% or 25% of a multifunctional acrylate or (iii) a combination of (i) and (ii); (d) 1% to 30% of a colloidal metal oxide; (e) 1% to 20% of a photoinitiator; and (f) a solvent, with the percentages based on weight. The cured composition provides superior abrasion and impact resistance as well as protection against environmental and chemical agents. In addition, the UV curable compositions are capable of forming films on various substrates; the film has excellent compatibility and adhesion to AR coatings that are applied thereon. No primer coating is required.

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: A radiation-curable composition in a liquid or solid form comprises at least one solid, non-crystalline radiation-transmissible material, dispersed in at least one cationic-curable or free-radical curable composition or mixture thereof. The solid, non-crystalline radiation-transmissible materials comprise glasses and other suitable materials that transmit (i.e., are transparent to) at least about 40% of radiation having a wavelength from about 180 to about 600 nanometers.