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 phase change ink comprising a white colorant; a colorant dispersant; and an ink vehicle comprising at least one curable monomer; at least one gellant; optionally at least one photoinitiator; optionally at least one stabilizer; and optionally at least one wax.

Abstract: Radically coupled PTFE polymer powders useful, for example, as tribomaterials, and a method for production thereof. Radically coupled PTFE polymer powders are provided which, when incorporated into a matrix as PTFE polymer compound, exhibit improved wear resistances, and furthermore there is provided a simple and efficient method for the production thereof. Radically coupled PTFE polymer powders are provided comprising radiation-chemically and/or plasma-chemically modified PTFE powders, onto the particle surface of which homopolymers, copolymers or terpolymers are radically coupled via a reaction in dispersion or in substance. A method is provided in which PTFE powders with reactive perfluoroalkyl-(peroxy) radical centers after a radiation-chemical and/or plasma-chemical modification are reacted in dispersion or in substance with the addition of polymerizable, olefinically unsaturated monomers, whereby during the reaction a polymer-forming reaction is obtained.

Abstract: An active energy curing type composition for an in-place shaping gasket is provided which is capable of providing an in-place shaped gasket superior in heat resistance, weather resistance, oil resistance, curability, compression set, and the like. An active energy curing type composition for an in-place shaping gasket, comprising the under-mentioned components (A) and (B) as essential components, wherein the viscosity of the composition is 400 Pa·s or less at 23° C. and the compression set of a cured article which is prescribed in JIS K 6262 is 30% or less: (A) a vinyl polymer having two or more (meth)acryloyl groups per molecule at the molecular ends, and (B) a vinyl polymer having one (meth)acryloyl group per molecule at the molecular end.

Abstract: Hardenable and hardened dental compositions, and articles including such hardenable and hardened compositions, are provided. In some embodiments, the hardenable dental compositions include an acid-generating component and an acid-reactive component including one or more acid-reactive groups. Upon irradiating, and optionally heating, the hardened compositions are useful, for example, for reducing the bond strength of orthodontic appliances adhered to tooth structures with the hardened compositions.

Abstract: A one-component self-etching self-priming dental adhesive composition is disclosed. The composition comprises glycerol phosphate di(meth)acrylate monomer, at least one mono-functional polymerizable monomer having just one ethylenically unsaturated group, at least one multi-functional polymerizable monomer having at least two ethylenically unsaturated groups, at least one aprotic solvent, at least one protic solvent, and at least one polymerization initiator.

Abstract: This invention relates to a photosensitive composition characterized by comprising components A, B and C, and a photosensitive film and a stencil for screen printing using the photosensitive composition; Component A: a poly(vinyl alcohol) polymer represented by formula (1) or (2) wherein R1 represents a hydrogen atom, an alkyl or aralkyl group having 1 to 10 carbon atoms, wherein the alkyl and aralkyl groups may be substituted by a hydroxyl or carbamoyl group and the bond between carbon atoms thereof may be present through an oxygen atom or an unsaturated bond; R2 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; m is an integer of 1 to 6; n is 0 or 1; and X? represents a halogen ion, a phosphate ion, a methosulfate ion, or a sulfonate ion, or a mixture of the anions; component B: a radical polymerizable monomer containing at least one ethylenically unsaturated bond and possesses an anion dissociating capability; and component C: a radical photoinitiator.

Abstract: A curable composition is provided comprising an oligomer having a plurality of pendent and/or terminal ethylenically unsaturated, free-radically polymerizable functional groups, a free-radically polymerizable crosslinking agent, and/or a diluent monomer, and a photoinitiator. The composition, when cured, is non-yellowing, exhibits low shrinkage and low birefringence making it suitable for many optical applications such as optical lenses, optical fibers, prisms, light guides, optical adhesives, and optical films.

Abstract: The invention relates to novel photoinitiators of formula (I) wherein A is —O—, —CH2?, CH(CH3)— or —C(CH3)2?, and R is methyl or trimethylsilyl, and R may in addition be hydrogen when A is simultaneously the group —C(CH3)2?. The invention relates also to compositions comprising (A) at least one ethylenically unsaturated compound, (B) a photoinitiator of formula (I), (C) optionally further binders or additives, (D) optionally further photoinitiators or co-initiators. Compositions comprising (A) an ethylenically unsaturated compound that contains at least one aminoacrylate, (B) a photoinitiator of formula (II) or (III), (C) optionally further binders or additives, (D) optionally further photoinitiators or co-initiators.

Abstract: Polyolefin waxes bearing (meth)acrylate groups, process for preparing them and their use.

Abstract: An ink composition is provided that includes a perfluoroalkyl group-containing polymer, a polymerizable monomer, and a radical polymerization initiator, in which at least 80 wt % of the polymerizable monomer is a monofunctional polymerizable monomer selected from the group consisting of a monofunctional acrylate, a monofunctional methacrylate, a monofunctional vinyloxy compound, a monofunctional N-vinyl compound, a monofunctional acrylamide, and a monofunctional methacrylamide.

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: A coating formulation for a substrate having abstractable hydrogen radicals is disclosed. The formulation includes a hydrophilic polymeric component comprising at least two polymeric species of differing molecular weights, an unsaturated hydrophilic monomer capable of free-radical polymerisation in the presence of a radical and a UV activatable compound capable of abstracting hydrogen radicals from the surface to be coated and from a polymeric specie of the hydrophilic polymeric component so as to initiate and promote the cross-linkage of the monomer to the surface and of the monomer or a propagating monomer chain to a polymeric specie of the polymeric component, and a suitable solvent to give the formulation a desired viscosity.

Abstract: Disclosed is a photosensitive resin composition. The composition comprises [A] an alkali-soluble resin, [B] a photoactive compound and [C] a solvent. The alkali-soluble resin is a copolymer including at least one structural unit with an aziridine group. The composition exhibits good storage stability, high sensitivity, high UV transmittance, high residual film ratio, improved coating uniformity and excellent pattern-forming properties. Further disclosed is an organic insulating film formed using the composition. The organic insulating film has excellent resistance to solvents and chemicals.

Abstract: Preparation of ene adducts, especially polyisobutylsuccinic anhydrides, by thermally reacting olefins (“enes”), especially polyisobutylenes, with vinylic carbonyl compounds (“enophiles”), especially maleic anhydride, using microwave radiation.

Abstract: One embodiment of a composition includes a radiation-curable pre-polymer and at least one stabilizing additive contained in the radiation-curable pre-polymer. The stabilizing additive is configured to reduce shrinkage caused by radiation curing of the radiation-curable pre-polymer.

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: Dental materials which contain a radically polymerizable organic binder, at least one radical polymerization initiator and at least one radical polymerization accelerator, both the initiator and the accelerator each having at least one radically polymerizable group.

Abstract: A polymeric surfactant formed by the reaction of an oligomeric or polymeric substrate with at least one ethylenically unsaturated monomer, wherein the reaction is conducted in the presence of a type II photo initiator and by the action of actinic radiation. The polymeric surfactant is useful for stabilising the interface in emulsions or dispersions.

Abstract: A porous article which is formed from a polymeric material, in which characteristics of the surface of the article provided by the polymeric material are modified by having grafted to it chains of polymerized vinyl monomer units, in which the chains each comprise a number of units of a first vinyl monomer and include a unit of a second vinyl monomer which is different from the first vinyl monomer. Preferably, the ratio of the number of units of the first vinyl monomer in each chain to the number of units of the second vinyl monomer is not more than about 60. When the number of second vinyl monomer units in each chain is one, the mean number of first vinyl monomer units in each chain will be not more than 60.

Abstract: A method and kit for providing a tack-free artificial nail surface. The tack-free artificial nail surface may include an acrylic layer and a barrier layer. The acrylic layer may comprise an odorless monomer. The barrier layer may be of any material impervious to oxygen. The tack-free nail surface may be formed by application of the acrylic layer to a fingernail nail bed. The barrier layer may then be applied over the acrylic layer. The barrier layer blocks oxygen from the acrylic layer so that the acrylic layer may polymerize in the absence of oxygen.

Abstract: Lipobeads (liposome-encapsulated hydrogels) combine properties of hydrogels and liposomes to create systems that are sensitive to environmental conditions and respond to changes in those conditions in a fast time scale. Lipobeads may be produced by polymerizing anchored or unanchored hydrogels within liposomes or by mixing anchored or unanchored hydrogels with liposomes. Giant lipobeads may be produced by shrinking unanchored nanogels in lipobeads and fusing the resulting lipobead aggregates, long-term aging of anchored or unanchored lipobeads, or mixing anchored or unanchored aggregated nanogels with liposomes. Poly(acrylamide), poly(N-isopropylacrylamide), and poly(N-isopropylacrylamide-co-1-vinylimidazole) lipobeads were produced and characterized.

Abstract: An intaglio printing ink, curing by free radical acrylate chemistry, which does not fluoresce in at least the visible region under ultraviolet light is prepared by using an acylphosphine oxide as the photoinitiator.

Abstract: Composition with at least one polymerizable binder and at least one polymerization initiator, which contains at least one acylgermanium compound according to general Formula (I), in which R0 is a substituted or unsubstituted C1-18-alkyl radical or an acyl group; R1 and R2 are H, an acyl group or have one of the meanings given for R3; R3 is a branched or linear C1-18-alkyl radical which can be unsubstituted or substituted one or more times by —O—, —NH—, —NR—, —S— or interrupted by other groups, trimethylsilyl, hal-(CH3)2Si—[OSi(CH3)2]r?, (CH3)3Si—[OSi(CH3)2]r—, —COOH, —COO—R10, —CO—NR11R12, —CO-vinyl, —CO-phenyl, phenyl-C1-4-alkyl, phenyl, naphthyl or biphenyl, C5-12 cycloalkyl, a 5 or 6-membered O, S or N-containing heterocyclic ring, halogen, OH, an aromatic C6-30 radical which can be substituted or unsubstituted and/or interrupted by O, S or —NR—, or a branched, cyclic or linear C1-20 alkyl, -alkenyl, -alkoxy or -alkenoxy radical; m is 1, 2 or 3; n is 0 or 1 and p is 0 or 1; wherein in each case two of

Abstract: A photocurable pigment type inkjet ink composition including 5 to 95 wt % of water; 0.5 to 20 wt % of a pigment; 1 to 70 wt % of a photocurable component; and 0.0001 to 30 wt % of a reactive surfactant. The reactive surfactant can serve as a pigment dispersant for dispersing pigment particles or as an emulsifier for emulsifying the photocurable component.

Abstract: Radiation curable ink compositions that include a curable component having a functionality that is greater than two, is present in the ink composition in an amount greater than 30 percent by weight, and has a molecular weight in the range of about 400 g/mole to about 10,000 g/mole; a component that has a functionality that is less than or equal to 2; and an initiator component. A solvent component, pigment, a surface tension modifier and other materials also can be included. The radiation curable inks are employed in ink jet printers and are particularly suited for use in printing on large-scale substrates. The printed images described herein have good adhesion to polymeric substrates such as styrene-based, polycarbonates, polyolefins, polyethylene terephthalate glycol ester, acrylic and others.

Abstract: A method of surface cross-linking superabsorbent polymer particles using UV irradiation is provided. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method is able to emit UV radiation of a wavelength between about 100 nm and about 200 nm.

Abstract: The invention provides a colorant-containing curable composition including a colorant and a solvent, wherein the colorant includes a compound represented by Formula (I) and/or a tautomer thereof, and the solvent includes at least one selected from the group consisting of cyclohexanone, cyclopentanone, propyleneglycol methyl ether, propyleneglycol methyl ether acetate, a lactate ester, and diacetone alcohol. The invention further provides a color filter manufactured by using the colorant-containing composition and a manufacturing method of the color filter.

Abstract: A method of surface cross-linking superabsorbent polymer particles using UV irradiation is provided. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Radical former molecules are applied on the surface of superabsorbent polymer particles. These superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method is able to emit UV radiation of a wavelength between about 201 nm and about 400 nm.

Abstract: The present invention provides a UV curable composition comprising an acrylate component, comprising an acrylate-functionalized hydrogenated polybutadiene, and at least one mono-functional acrylate, and a photoinitiator combination triggered upon exposure to radiation at 365 nm of the electromagnetic spectrum comprising a bisacyl phosphine oxide and benzophenone, where when dispensed at a thickness of about 1 mm and exposed to UV radiation generated at a wavelength of 365 nm the composition cures through the thickness of the dispensed composition at a speed between 40 mm/sec to 100 mm/sec.

Abstract: Disclosed is an optical device structure comprising a low shrinkage mixture wherein the shrinkage of the mixture is limited after the curing of the mixture during optical device formation. Disclosed also are methods for forming optical devices which comprise the low shrinkage mixture.

Abstract: (A) a polycarbonatediol, (B) a trifunctional alcohol, and (C) a diisocyanate are subjected to reaction in the presence of (D) a (meth)acrylate compound represented by the general formula CH2?CRCO(OCnH2n)pR? or CH2?CRCO(OCmH2m)qOCOCH?CH2, and (E) a di(meth)acrylate compound of alkylene glycol whose alkylene group is substituted as a lower alkyl group, and then (F) a hydroxyl group-containing (meth)acrylate is added to the resulting solution of urethane oligomers in (meth)acrylate to conduct terminal (meth)acrylating reaction of the urethane oligomers, thereby producing a UV-curable liquid polyurethane resin having a viscosity (25° C.) of preferably 150,000-1,000,000 mPa·s, where before or after the terminal (meth)acrylating reaction of the urethane oligomers (G) a photopolymerization initiator and (H) a hindered phenol-based antioxidant having a molecular weight of 500-2,000 are added thereto to form the UV-curable liquid polyurethane resin.

Abstract: A radiation curable coating composition comprising: (i) a thermoplastic polymer; (ii) at least one ethylenically unsaturated adhesion-promoting monomer or oligomer; (iii) at least one other ethylenically unsaturated radiation polymerizable reactant; and (iv) at least one initiator for initiating cure.

Abstract: A process for preparing a polyacrylate-based shaped article, a polyacrylate being polymerized by a conventional method, wherein the polyacrylate comprises copolymerized comonomers having thermally crosslinkable groups and comonomers having attached photoinitiators, and the polyacrylate is crosslinked thermally in a first step and by irradiation with UV light in a second step.

Abstract: An active energy ray curable coating composition comprising a mixture (A) of compounds each having a (meth)acryloyl group and a colloidal silica (B), wherein the mixture (A) contains from 22 to 62% of a copolymer (A1) having (meth)acryloyl groups and obtained by reacting a specific amount of a radical polymerizable monomer (a1) having a quaternary ammonium salt group, a radical polymerizable monomer (a2) having a hydroxyl group and a radical polymerizable monomer (a3) having a lactone ring-opening addition structure. A molded product having a coating film made of a cured product of the coating composition. To form a coating film made of a cured product which provides excellent abrasion resistance, transparency and antistatic property and undergoes little decrease in the antistatic property even when kept at a high humidity.

Abstract: Powder coating binders having a glass temperature of ?35° C. containing at least one polymer and one or more radiation-curing reactive thinners, a process for the production of these powder coating binders and their use as a component of powder coatings.

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.

Abstract: Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.

Abstract: A water based coating mixture for the application of a polymeric coating to a substrate mixture includes water and optionally an organic solvent, at least one free-radically polyerizable compound. Preferably the coating is weldable.

Abstract: To provide an environmentally-friendly curable resin composition for surface protection, having a high adhesive strength and being capable of forming a protective film which will readily be removed in the film form without adhesive residue in water on a member to be processed, a photocurable adhesive using it, a method for temporarily fixing a member, and a method for removing a protective film. A curable resin composition for surface protection, comprising (A) a polyfunctional (meth)acrylate, (B) a monofunctional (meth)acrylate, and (C) a resin having a cyclopentadiene skeleton. Further, a curable resin composition for surface protection, comprising (A) a polyfunctional (meth)acrylate, (B) a monofunctional (meth)acrylate, (C) a resin having a cyclopentadiene skeleton, and (D) a photopolymerization initiator.

Abstract: The invention relates to an oriented pressure-sensitive adhesive and to a process for preparing it. The pressure-sensitive adhesive comprises an acrylate-based UV-crosslinked polymer which is synthesized in a mass fraction of at least 50% from at least one acrylic monomer according to the general formula (I) in which R1 is hydrogen (H) or a methyl group (CH3) and R2 is hydrogen (H) or a branched or unbranched, saturated C1 to C30 hydrocarbon radical, which may optionally be substituted by a functional group, the pressure-sensitive adhesive, in the form of a film applied as a melt (hotmelt), having a preferential direction which is characterized in the free film by a shrinkback of at least 3% relative to an original stretching of the film in the preferential direction. The orientation is generated after polymerization by means of a suitable coating process and is subsequently “frozen in” by UV crosslinking.

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: The invention provides a curable resin composition having an addition polymerization-based block copolymer (I) and an ethylenic unsaturated compound (II). Also provided is a flexographic plate material using the curable resin composition as its constituent. The flexographic plate material containing the curable resin composition of the present invention, can be cured to form strong and extendable areas and can be used to make flexographic plates that can form a sharp image plate surface even for a fine image. The flexographic plate material of the present invention is particularly useful in printing on cardboards, recycled paper or other paper articles with rough surfaces.

Abstract: A flowable, light-curing underfilling material that is easily visible and distinguishable from the tooth substance. The underfilling material contains at least one polymerizable monomer, at least one polymerization initiator and also 0.3-10% white pigment.

Abstract: Photosensitive compositions which can be developed by alkali solution, comprise (A) a polymer containing at least one carboxylic acid group in the molecule and having a molecular weight of 200,000 or less, (B) selected ?-aminoalkylphenone compounds as photoinitiators and (C) an ester of a polyol, wherein the polyol is partially or fully esterified with an ethylenically unsaturated carboxylic acid a monomeric, oligomeric or polymeric compound having at least one olefinic double bond.

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 method of polymerizing by a free radical polymerization mechanism, product formed thereby, and apparatus for performing this method, are disclosed. The composition to be polymerized by the free radical polymerization mechanism is irradiated by a substantially constant radiation, the radiation being substantially without pulsation. The use of the substantially constant radiation without pulsation reduces premature termination of the polymerization. The substantially constant radiation can be the output of a lamp powered by a constant current, direct current power supply.

Abstract: A clearcoat curable by ultraviolet radiation including at least one of A) acrylate or methacrylate monomers or mixtures thereof having from one to six free-radically polymerizable groups per molecule or B) compounds containing two or more ethylenically unsaturated, free radically polymerizable groups per molecule and mixtures thereof or mixtures of A) and B). The coating may optionally include photoinitiators, volatile organic solvent(s) and customary additives. The invention further provides a process for applying the clearcoat to a substrate. In a preferred embodiment the process according to the present invention includes low energy curing of a clearcoat applied to a substrate by means of a UV light source utilizing UVA/UVV or UVA only and involves essentially no UVB or UVC radiation.

Abstract: Modified polyolefins are produced by reacting a functionalized polyolefin with one or more ethylenically unsaturated compounds having a functional group reactive with the functional group on the polyolefin. These modified polyolefins may then polymerize in the presence of a photoinitiator upon exposure to ultraviolet radiation and also have the capability of copolymerizing in the presence of a photoinitiator with other ethylenically unsaturated crosslinking agents upon exposure to ultraviolet radiation. These modified polyolefins may also contain pendant carboxyl groups, which have the propensity to form hydrophilic salts with amines, and therefore may be rendered water-dispersible. The modified polyolefins of the present invention significantly improve the adhesion of paints, inks, and adhesives to various plastic and metal substrates.

Abstract: New polymers and new anti-reflective compositions containing such polymers are provided. The compositions comprise a polymer (e.g., epoxy cresol novolac resins) bonded with a chromophore (4-hydroxybenzoic acid, trimellitic anhydride). The inventive compositions can be applied to substrates (e.g., silicon wafers) to form anti-reflective coating layers having high etch rates which minimize or prevent reflection during subsequent photoresist exposure and developing.