Abstract: A single component liquid heat-curable adhesive formulation that is stable at room temperature. The formulation includes from about 5 to about 70 wt % of at least one acrylate monomer, from about 5 to about 94 wt % of an acrylate oligomer, and from about 0.1 to about 10 wt % of a thermal initiator selected from the group consisting of diacyl peroxides, benzoyl peroxides and peroxy esters. A photo initiator may be included thereby rendering the stable liquid formulation to be both heat-curable and UV-curable.

Abstract: Radiation curable inks with moderate amounts of solvent with low surface tension provide unique processability characteristics that allow ink jetted features to be formed and cured with excellent flow, adhesion, dot gain, compatibility, weatherability, and curing characteristics. In a representative printing method, an ink jettable ink composition is provided that includes one or more oligo/resins, a radiation curable, reactive diluent having a surface tension and 1 to 15 weight percent of a solvent component comprising a solvent having a surface tension. The solvent surface tension is no more than about, and preferably at least 2 dynes/cm less than, the surface tension of the reactive diluent. The ink composition is ink jetted onto the substrate to form an ink jetted feature.

Abstract: The invention provides ink which is best suited for inkjet printing of a printed substrate. The ink is a photo polymerizing type water-base ink including at least a colorant, a photo polymerization resin, a photo initiator, and a water-base solvent. The photo polymerization resin includes oligomer particles in an emulsion state and monomers which reside in the oligomer particles. The water-base ink contains, with content ratio in terms of the percentage weight, 5% of ethyleneglycol, and between 0.1% to 10% of 2-pyrrolidone and N-acryloyl morpholine combined.

Abstract: The present invention relates to powdered thermosetting compositions including a binder which comprises a carboxyl group containing amorphous isophthalic acid containing polyester, a carboxyl group containing semi-crystalline polyester, at least 10 parts by weight, based on the total weight of the binder, of a specific glycidyl group containing acrylic copolymer and a curing agent having functional groups reactive with the polyesters' carboxyl groups. The powdered thermosetting compositions are useful for the preparation of powdered paints and varnishes which give low gloss coatings having an outstanding flow, a remarkable weatherability and excellent mechanical properties.

Abstract: A pressure sensitive adhesive comprising a mixture of

Abstract: Coating compounds curable by means of high-energy radiation, comprising as binder A) at least one (meth)acrylic copolymer containing olefinic double bonds capable of free-radical polymerization and hydroxyl groups with a C═C equivalent weight from 100 to 10,000 and an OH-value from 20 to 250 mg KOH/g, which is prepared from monomers comprising: A1) at least one olefinically unsaturated, epoxy-functional monomer capable of free-radical polymerization, A2) at least one olefinically unsaturated, carboxy-functional monomer capable of free-radical polymerization and A3) at least one further olefinically unsaturated monomer capable of free-radical polymerization which is different from A1) and A2), and B) at least one component with free isocyanate groups and process for multilayer coating using the coating compounds.

Abstract: The disclosed invention includes a composition for an optical fiber coating. The cured composition includes at least one monomer and at least one compound from the following group of compounds that consist of an ultra-violet light absorber, a hindered amine light stabilizer, and an optical brightener. The invention also includes an optical fiber coated with the inventive coating.

Abstract: Improved radiation-curable compositions and related methods useful in the assembly of optical components. These compositions cure via free-radical polymerization and comprise: about 30 to about 70 wt. % oligomer; about 10 to about 50 wt. % reactive diluent; and about 0.1 to about 40 wt. % adhesion promoter, wherein the cured composition exhibits a modulus of less than about 50 MPa, and a dry adhesion in excess of about 50 g force. A related aspect of the present invention is a higher modulus composition that cures via free-radical polymerization and comprises: about 30 to about 70 wt. % oligomer; about 10 to about 50 wt. % reactive diluent; and about 0.1 to about 40 wt. % polymerizable adhesion promoter, wherein the cured composition exhibits a modulus of greater than about 600 MPa.

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: 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: 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: Disclosed are methods for sterilizing cyanoacrylate prepolymer compositions under visible light irradiation conditions wherein the prepolymer remains in polymerizable form after sterilization.

Abstract: The disclosed invention includes a composition for an optical fiber coating. The cured composition includes at least one monomer and at least one compound from the following group of compounds that consist of an ultra-violet light absorber, a hindered amine light stabilizer, and an optical brightener. The invention also includes an optical fiber coated with the inventive coating.

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: Ink compositions having excellent imaging and a low tendency to foam are disclosed. The ink compositions may contain one or more fluorochemical surfactants. Methods of coating a substrate by printing the ink composition onto a substrate are also disclosed. Substrates coated with an ink composition are further disclosed.

Abstract: A photothermosetting composition is described which contains a base resin (A), a photopolymerizable photomonomer or photooligomer (B), a photoinitiator (C), an epoxide compound containing at least two epoxy groups (D), and an organic solvent. The base resin (A) an epoxide compound (a) containing at least two epoxy groups, an unsaturated monobasic acid (b), a saturated or unsaturated dibasic acid (c), and a saturated or unsaturated acid anhydride (d) according to the ratio of (a)/(b)/(c) of 1:0.90˜0.95:0.025˜0.050 and the acid value of the base resin is in the range of 40˜49 mg KOH/g. This photothermosetting component was coating on the substrate, and then dried by baking, exposed by light, developed, irradiated by ultraviolet light or heated, and cured to form a solder mask.

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: Fragranced lacquer coating composition polymerized by ultraviolet (UV) (UV-A from 315 to 380 nm) radiation comprising a) 70 to 90 parts by weight unsaturated polyester acrylate, b) 5 to 20 parts by weight divinylether monomer, c) 3 to 10 parts by weight UV photoinitiator, d) I to 10 parts by weight fragrance and e) 0.01 to 0.1 parts by weight odorless additive having fluidifying properties. The invention also relates to the preparation of the foregoing lacquer coating.

Abstract: Optical fiber primary coating systems are disclosed having excellent ribbon stripping and adhesion behavior. The coatings are radiation-curable. The excellent stripping and adhesion behavior can be inner piramry coating composition having a slip enhancing component and a high modulus outer primary coating composition. Combination of means can be employed. Stripping behavior can be measured by crack propagation and fiber friction measurements.

Abstract: A radiation curable coating composition includes a mixture of an oligomeric acrylate having a crosslinkable acrylate functionality of 1 to 6, at least one of monomeric acrylates and dimeric acrylates, having a crosslinkable acrylate functionality of 1 to 6, an acrylated colloidal silica, and a photoinitiator.

Abstract: Methods of forming crosslinked polymer particles in situ from polymer precursors such as monomers or oligomers, comprising exposing a composition comprising at least one polymer precursor, a solvent or solvent mixture, and an antisolvent or antisolvent mixture to photoradiation under conditions whereby particles are formed are provided. The polymer precursor may be photosensitive, or a separate polymerization initiator may be used. In a preferred embodiment, the polymer precursor is insoluble in the antisolvent or antisolvent mixture and the solvent or solvent mixture is soluble in the antisolvent or antisolvent mixture at the concentrations used. Crosslinked polymer particles and crosslinked polymer particles comprising a polymer and a bioactive material are also provided. The polymer may be erodable, and the polymer particles formed may be used in a variety of applications, including controlled release of bioactive materials such as drugs.

Abstract: A method of making a reflective film includes the steps of: (a) preparing a cholesteric mixture that includes a cholesteric liquid crystal material and at least one type of polymerizable compound; (b) forming a cholesteric mixture layer in which the cholesteric liquid crystal material forms a helical structure, having continuously changing helical pitches, approximately along a normal to the layer; and (c) exposing the cholesteric mixture layer to an actinic ray at a temperature, at which the cholesteric mixture exhibits a cholesteric phase, thereby polymerizing the at least one type of polymerizable compound. In this method, a Tni point of the cholesteric mixture increases by performing the step (c).

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: A single component liquid heat-curable adhesive formulation that is stable at room temperature. The formulation includes from about 5 to about 70 wt % of at least one acrylate monomer, from about 5 to about 94 wt % of an acrylate oligomer, and from about 0.1 to about 10 wt % of a thermal initiator selected from the group consisting of diacyl peroxides, benzoyl peroxides and peroxy esters. A photo initiator may be included thereby rendering the stable liquid formulation to be both heat-curable and UV-curable.

Abstract: Optical fiber primary coating systems are disclosed having excellent ribbon stripping and adhesion behavior. The coatings are radiation-curable. The excellent stripping and adhesion behavior can be inner piramry coating composition having a slip enhancing component and a high modulus outer primary coating composition. Combination of means can be employed. Stripping behavior can be measured by crack propagation and fiber friction measurements.

Abstract: A new method for crosslinking polyethylene oxide (PEO) by means of a dialkyl peroxide to form a gel, which can imbibe large amounts of water. Two separate ovens were used to crosslink PEO with the peroxide. The first oven is set at 85° C. for 2.5 minutes for melting the polymer and purging oxygen with acetone vapors and forming a shield around the sample to minimize oxygen diffusion from outside, meanwhile, trapping peroxides inside. A second oven was used to thermally decompose the peroxide. The crosslinking reaction proceeds at 160° C. for 15 minutes.

Abstract: There are disclosed a frost-coating composition, which comprises (i) a hydrophobic silica particle or further comprises (ii) a polymer particle, in addition to a photocurable compound; and a frosted glass container coated with such a composition. The frosted glass container coated with such a composition is excellent in alkali resistance, or excellent both in alkali resistance and in impact resistance.

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: 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: A one-part, cured, radiation-curable liquid matrix composition for affixing coated and inked optical fibers in a ribbon configuration which is peelable from the coated and inked fibers without damage to the integrity of itself or the fibers is disclosed. The composition comprises an aliphatic urethane acrylate oligomer; a reactive monomer having one or more acrylate or methacrylate moieties; a release agent; and an optional photoinitiator. Also disclosed are an optical fiber ribbon array prepared therefrom; a process for removing such matrix composition from inked and coated fibers; a process for preparing such ribbon array; and a radiation-curable coating composition generally applicable for coating a substrate.

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: The invention relates to a process as described in claim of preparing a reflective film comprising a layer of a polymerized mesogenic material with helically twisted structure, wherein the helix axis is perpendicular to the film plane, and containing regions with varying helical pitch, to a reflective film obtainable by such a process, to the use of such a reflective film as reflective broadband or notch polarizer or as a multicoloured film or image in liquid crystal displays, as colour filter, in effect pigments, for decorative or security applications, and to a liquid crystal display comprising a liquid crystal cell and a reflective polarizer as described in the foregoing and the following, and optionally further comprising one or more compensaters or polarizers.

Abstract: An easy adhesion film for a transparent conductive thin film comprises a transparent polymer film and an easy adhesion layer formed on the transparent polymer film, wherein the easy adhesion layer comprises at least an ionizing radiation curable resin binder, a (meth)acrylate copolymer binder and polymethyl methacrylate resin particles. The easy adhesion film has high durability, transparency and anti-Newton ring property when provided with a transparent conductive thin film.

Abstract: An ink for ink-jet recording contains a coloring agent, a polymerizable oligomer, water, and a photopolymerization initiator having a solubility in water of 3 percent by weight or more. Another ink for ink-jet recording contains a coloring agent, a polymerizable oligomer having at least two acryloyl groups and a solubility in water of 10 percent by weight or more, a photopolymerization initiator, and water. The specified polymerizable oligomer or photopolymerization initiator reduces bleeding of the ink on recording media.

Abstract: A method for rapid polymerization, curing or a combination thereof of a polymerizable or curable composition to yield polymers and composites based on these polymers through the utilization of short wavelength microwave energy is described. The inventive method is generally applicable to the chemical transformation of any organic material that can be processed by heating. This invention also relates to specially prepared particulate polymerization curing materials which, when dispersed and irradiated in a polymerizable or curable composition, will effect rapid polymerization, curing or a combination of polymerization and curing of that composition without exceeding the decomposition temperature of the polymerizable or curable composition when the composition is exposed to microwave radiation. The polymerization agent may also be encapsulated by a material which coats the polymerization agent to prevent its premature release into the polymerizable or curable composition.

Abstract: Radiation-crosslinkable elastomeric compositions containing: (a) an elastomeric polymer containing abstractable hydrogen atoms in an amount sufficient to enable the elastomeric polymer to undergo crosslinking in the presence of a suitable radiation-activatable crosslinking agent; and (b) a radiation-activatable crosslinking agent of the formula: wherein: X represents CH3—; phenyl; or substituted-phenyl; or substituted-phenyl with the proviso that any substituents on the substituted-phenyl do not interfere with the light-absorbing capacity of the radiation-activatable crosslinking agent and do not promote intramolecular hydrogen abstraction of the radiation activatable crosslinking agent; W represents —O—, —NH—, or —S—; Z represents an organic spacer selected from the group consisting of aliphatic, aromatic, aralkyl, heteroaromatic, and cycloaliphatic groups free of esters, amides, ketones, urethanes, and also free of ethers, thiols, allylic grou

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. The solid forms of the radiation-curable compositions of the invention are useful as powder coatings for coating decorative and functional objects and that would be cured by a thermal heating flow process followed by radiation exposure. The cured compositions of the invention are useful as coatings and inks for metal, paper, plastics, glass, ceramics, and wood, as adhesives, as sealants, and as composite materials and other articles and in biomedical and dental applications.

Abstract: The present invention relates to a process for the production of three-dimensional articles by stereolithography using a radiation-curable composition comprising a mixture of at least one cationically polymerizable compound and/or at least one free radical polymerizable compound, at least one filler material and at least one photoinitiator for cationic and/or radical polymerization. An organic viscosity stabilizer material may be brought into contact with the composition to substantially delay or prevent undesirable viscosity increase and subsequently premature polymerization. A filler material is optionally added to the composition in an effective amount to at least delay or prevent a significant increase in viscosity and polymerization. The process is particularly suitable for stabilizing resins in stereolithography baths.

Abstract: Process for using microwave irradiation to prepare solutions of polymers functionalized with acid groups The invention relates to a process for preparing aqueous, hydrous and anhydrous solutions of polymers functionalized with acid groups, which comprises using microwave radiation to supply the heat required to prepare the solution. The solutions are suitable as a starting material for producing gas diffusion electrodes, fuel cells and polymer-electrolyte-stabilized platinum nanoparticles.

Abstract: A photopolymerizable composition for making screen printing stencils. The composition comprises polyvinyl alcohol having at least one photocrosslinkable group appended thereto. At least one metal salt, wherein the metal is selected from: aluminum, zinc, chromium, zirconium, titanium, tin or iron, is added to the composition. The metal salt is used to improve water resistance of a screen printing image that is prepared from the photopolymerizable composition.

Abstract: Hydrogels of polymerized and crosslinked macromers comprising hydrophilic oligomers having biodegradable monomeric or oligomeric extensions, which biodegradable extensions are terminated on free ends with end cap monomers or oligomers capable of polymerization and cross linking are described. The hydrophilic core itself may be degradable, thus combining the core and extension functions. Macromers are polymerized using free radical initiators under the influence of long wavelength ultraviolet light, visible light excitation or thermal energy. Biodegradation occurs at the linkages within the extension oligomers and results in fragments which are non-toxic and easily removed from the body. Preferred applications for the hydrogels include prevention of adhesion formation after surgical procedures, controlled release of drugs and other bioactive species, temporary protection or separation of tissue surfaces, adhering of sealing tissues together, and preventing the attachment of cells to tissue surfaces.

Abstract: A method of increasing the adhesion of a photopolymerizable composition and the photopolymerized composition formed therefrom, which method comprises the step of adding an adhesion promoter, which consists essentially of a polycarboxylic acid having three to six carbon atoms, to the photopolymerizable composition.

Abstract: A photopolymerizable composition comprising (A) 100 parts by weight of a mixture of (meth)acrylic acid ester monomers, (B) from 0.1 to 5 parts by weight of a surfactant having a perfluoroalkyl group and represented by the general formula (1) CF3(CF2)nAM  (1) wherein A represents —CO2— or —SO3—, M represents an alkali metal, and n is an integer of 3 to 9, and (C) from 0.2 to 10 parts by weight of a photopolymerization initiator, and a plastic optical disk provided with a cured coating of the photopolymerizable composition on at least one side thereof.

Abstract: The invention provides for pigment preparations containing, as main components, A) at least a finely divided organic or inorganic pigment, B) a dispersing agent composed of formaldehyde-arylsulfonic acid or oxalkylated phenols condensates, C) a radiation curable binder, D) optionally a photoinitiator, and E) water. The invention also provides for the use of said preparations as inks for said ink jet printing method.

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 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 curing process for cationically polymerisable monomers, which comprises applying a composition comprising: (a) at least one cationically polymerisable monomer, (b) as photoinitiator at least one iodonium salt containing an SbF6, PF6 or BF4 anion, (c) one pigment, and (d) at least one sensitiser, to a substrate, irradiating it with light having a wavelength of 200-600 nm and then heat-postcuring it, is distinguished by little yellowing of the cured formulation.

Abstract: A flexible, flame-retardant, aqueous processable, photoimageable resin composition for forming a permanent, protective coating film for printed circuitry and a multilayer photoimageable element containing a layer of the photoimageable resin composition in combination with a low tack photoimageable resin sublayer and a temporary support film are disclosed. The photoimageable resin composition has excellent aqueous developability and provides a cured coating film having good flexibility, adhesion, solvent resistance, surface hardness, thermal resistance, electrical insulating properties and flame retardancy.