Abstract: An adhesive member includes a polymer derived from a resin composition. The resin composition includes at least one (meth)acrylate monomer, at least one urethane (meth)acrylate oligomer, and at least one photoinitiator. The adhesive member has a glass transition temperature in a range of about ?70° C. to about ?30° C., a 180° peel force of about 800 gf/25 mm or greater at a temperature of 25° C., and a deformation recovery rate in a range of about 75% to about 100% at temperatures of ?20° C. and 60° C. The deformation recovery rate satisfies the following equation: X2=[1?(X1/25)]×100%, where X1 denotes a shear strain measured 600 seconds after removing a shear stress applied in a way such that the adhesive member has a shear strain of 25% at the temperatures of ?20° C. and 60° C., and X2 denotes the deformation recovery rate.

Abstract: Novel support material formulations, characterized as providing a cured support material with improved dissolution rate, while maintaining sufficient mechanical strength, are disclosed. The formulations comprise a water-miscible non-curable polymer, a first water-miscible, curable material and a second, water-miscible material that is selected capable of interfering with intermolecular interactions between polymeric chains formed upon exposing the first water-miscible material to curing energy. Methods of fabricating a three-dimensional object, and a three-dimensional object fabricated thereby are also disclosed.

Abstract: A resin composition includes a urethane (meth)acrylate oligomer. When the resin composition is cured with an ultraviolet light and loaded a shear force of about 2,000 Pa, the difference between the shear strain of the cured resin composition about 5 seconds after the loading and a shear strain of the cured resin composition about 300 seconds after the loading is less than about 5% A shear strain of the cured resin composition about 30 seconds after the shear force is removed from the cured resin composition is less than about 2%.

Abstract: Described is an energy curable ink for use in the production of layered composites the ink comprising 3 to 50% by weight of aminoacrylate as defined herein, 5 to 60% by weight of hydroxyl functional acrylate monomer and wherein the non-volatile content of the ink is not less than 45% by weight. Also described is a layered composite having a layer of the energy curable ink on a substrate and a process for producing a layered composite in which the energy curable ink according to the present invention is printed onto a substrate and then cured.

Abstract: The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.

Abstract: The invention relates to a coloured curable composition for use in an additive manufacturing process, the composition comprising a curable resin composition comprising radiation curable components, a photo initiator, a dye composition comprising a dye D1 and a dye D2, dye D1 having a light absorption maximum within a wave length range from 400 to 530 nm, dye D2 showing a light absorption maximum within a wave length range from 540 to 650 nm. The invention also relates to a 3-dim composite article obtained by processing the curable composition in an additive manufacturing process.

Abstract: Described herein are thermoset compositions and kits of compositions suitable for use in additive fabrication processes including high concentrations of urethane methacrylate oligomers having at least one polymerizable group, and a number average molecular weight from 750 to 4000 g/mol, an effective quantity of a monofunctional reactive diluent monomer, a defined concentration of a network building agent having a molecular weight that is lower than the urethane methacrylate oligomer, optionally a photoinitiator, and optionally, additives. Also disclosed are methods of creating three-dimensional parts via additive fabrication processes utilizing urethane methacrylate oligomer-centric compositions, wherein various exposure irradiances, cure temperatures, and oxygen content levels are prescribed, as well as the articles cured therefrom.

Abstract: The present invention relates to a cap for a medical connector. More specifically, the present invention related to an antimicrobial cap for placement over a connector, wherein various features of the antimicrobial cap maintain the connector in an antiseptic state.

Abstract: The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer.

Abstract: Novel support material formulations, characterized as providing a cured support material with improved dissolution rate, while maintaining sufficient mechanical strength, are disclosed. The formulations comprise a water-miscible non-curable polymer, a first water-miscible, curable material and a second, water-miscible material that is selected capable of interfering with intermolecular interactions between polymeric chains formed upon exposing the first water-miscible material to curing energy. Methods of fabricating a three-dimensional object, and a three-dimensional object fabricated thereby are also disclosed.

Abstract: Polymers are provided, in which a pendant photoinitiator moiety is linked to the polymer structure via an amide or a succinimide.

Abstract: The present invention provides the following aqueous coating composition. The aqueous coating composition comprises resin particles (A) having an average particle diameter of 300 to 1000 nm, a polyoxyalkylene group-containing polyol (B) having a number average molecular weight of 300 to 2000 and/or a diester compound (C), and a crosslinking agent (D); wherein the total solids content of the polyoxyalkylene group-containing polyol (B) and the diester compound (C) is 5 to 25 mass % based on the total solids content of the resin particles (A), the polyoxyalkylene group-containing polyol (B), the diester compound (C), and the crosslinking agent (D).

Abstract: The invention relates to compositions, having a) 1.00 to 65.00% by weight of at least one compound of formula (I), wherein R1, R2 are each independently H, C1-C6-alkyl, or C1-C6-alkoxy-C1-C6-alkyl; R3, R4, R5 are each independently H, C1-C6-alkyl, or C1-C6-alkoxy-C1-C6-alkyl; R6 is H or C1-C6-alkyl; k is 1, 2, 3, 4 or 5, as component A; b) 1.00 to 60.00% by weight of at least one monomer having two (meth)acrylate groups and 1 having a molecular weight Mw of no more than 500 Dalton, as component B; c) 0 to 25% by weight of at least one monomer having at least three (meth)acrylate groups and having a molecular weight Mw of no more than 600 Dalton, as component C; and d) 1.00 to 30.00% by weight of at least one polymer having at least two (meth)acrylate groups and having a molecular weight Mw of at least 700 Dalton, as component D; with the proviso that the amount of components A+B is at least 50% by weight, as well as the use of these compositions as printing inks, in particular inkjet printing inks.

Abstract: The invention relates to compositions, comprising. a) 1.00 to 65.00% by weight of at least one compound of formula (I), wherein R1, R2, R3, R4 are each independently H, C1-C6-alkyl, C1-C6-alkoxy, or C1-C6-alkoxy-C1-C6-alkyl; R is H or C1-C6-alkyl; X is CR6R7, O, or NR8; R6R7 are each independently H, C1-C6-alkyl, C1-C6-alkoxy, or C1-C6-alkoxy-C1-C6-alkyl; R8 is H, C1-C6-alkyl, or C1-C6-alkoxy-C1-C6-alkyl; k is 1, 2, 3, 4 or 5, as component A; b) 1.00 to 60.00% by weight of at least one monomer having two (meth)acrylate groups and having a molecular weight of no more than 500 Dalton, as component B; c) 0 to 25% by weight of at least one monomer having at least three (meth)acrylate groups and having a molecular weight of no more than 600 Dalton, as component C; and d) 1.00 to 30.

Abstract: The present invention provides substantially isocyanate-free multicomponent compositions useful in making rapid dry automotive primer compositions and coatings, the compositions having a % PVC of from 20 to 60, or preferably, from 25 to 50, and comprising one or more pigment, extender or filler, one or more a) polycarbamates from alkyd polyol or acrylic polyol and one or more b) a polyaldehydes or the acetal or hemiacetal thereof as a second component. The multicomponent compositions cure quickly at a temperature of from 0° C. to less than 80° C. to form a crosslinked polyurethane which dries to enable sanding after only 15 to 45 minutes.

Abstract: Photo-curable compositions for artificial teeth and denture base and a method for manufacturing denture by a three-dimensional printing system are provided. The compositions include photo-curable organic compounds, surface modified nano-sized inorganic filler, photo-initiator, colorant, and stabilizer. The composition is in a viscous liquid state having 1,000-5,200 cps at room temperature and has a low viscosity of 50-500 cps at 70° C. The composition also has an excellent curing rate for three-dimensional printing. Using the compositions, denture having a distinctive denture base and a set of artificial teeth can be manufactured via an inkjet type or digital light process type three-dimensional printing according to Computer Aided Design (CAD) data.

Abstract: When achieving high hardness by forming a hardcoat layer including only organic matter, cure shrinkage increases, a film on which the hardcoat layer is formed curls, and in extreme cases, the hardcoat layer is prone to cracking; on the other hand, when attempting to suppress cure shrinkage, it is difficult for sufficient high hardness to be exhibited. Furthermore, organic/inorganic hybrid curable resin compositions use inorganic matter such as silica in order to increase hardness. However, this leads to the problem of the inherent properties of the resin, such as workability, being lost. The abovementioned problems have been solved by a curable resin composition containing: a urethane (meth)acrylate, which is a reactant comprising norbornane diisocyanate and a compound having one hydroxyl group and one or more (meth)acryloyl groups in a molecule; and a (meth)acrylate monomer, which is a reactant comprising a polyol having a condensed polycyclic structure, and (meth)acrylic acid.

Abstract: A coating composition that exhibits high cure speed is described. The coating composition includes one or more monomers, one or more oligomers, and a photoinitiator. The coating composition further includes a photo sensitizer that acts in cooperation with a photoinitiator to increase cure speed.

Abstract: The present invention relates to a cap for a medical connector. More specifically, the present invention related to an antimicrobial cap for placement over a connector, wherein various features of the antimicrobial cap maintain the connector in an antiseptic state.

Abstract: An ethylenically unsaturated polyurethane, which is an oligomer or polymer, results from the reaction of A) an alcohol component comprising: A1) at least one hydroxylated polydiene oligomer or polymer which may optionally be alkoxylated and A2) at least one hydroxyl-functional ethylenically unsaturated compound, which is a monomer or oligomer, bearing at least one ethylenic unsaturation and B) an isocyanate component comprising at least one polyisocyanate with a functionality of at least 2, wherein the molar ratio OH/NCO is greater than 1 and wherein said polyurethane bears reactive free hydroxyl groups. Such ethylenically unsaturated polyurethanes are useful as components of curable compositions such as coatings or adhesives.

Abstract: [Problem] To provide an active energy ray-curable composition which provides a cured product having excellent transparency as well as superior shock absorption and vibration absorption, and a cured product, a shock-absorbing material, a vibration-absorbing material and a sheet material in which said active energy ray-curable composition is used. [Solution] An active energy ray-curable composition containing (A) diallyl 1,4-cyclohexane dicarboxylate, (B) a compound having two or more mercapto groups, and (C) a polymerization initiator.

Abstract: Provided are methods for surface-modifying a rubber vulcanizate or a thermoplastic elastomer, the methods forming a surface with a chemically fixed lubricant instead of resin coating which has drawbacks, such as that the coating is, for example, removed or peeled during the movement within a vessel, whereby the lubricity is reduced. The present invention relates to a method for surface-modifying an object of a rubber vulcanizate or a thermoplastic elastomer, the method including step 1 of forming polymerization initiation points on a surface of the object, and step 2 of radically polymerizing a deliquescent monomer starting from the polymerization initiation points by irradiation with ultraviolet light having a wavelength within the range of 300 to 400 nm, to grow polymer chains on the surface of the object.

Abstract: The present invention relates to a process for the preparation of a hydroxy-amino polymer, comprising the steps: a) reacting an H-functional starter compound carrying at least one Zerewitinoff-active H atom with an unsaturated cyclic carboxylic acid anhydride and at least one alkylene oxide compound to give a hydroxyl-group-carrying prepolymer, b) adding a primary amine and/or ammonia to the double bonds of the hydroxyl-group-carrying prepolymer obtained according to step a) to give the hydroxy-amino polymer, wherein the reaction of the H-functional starter compound with the unsaturated cyclic carboxylic acid anhydride and/or the addition of the alkylene oxide compound is carried out using a double metal cyanide catalyst (DMC catalyst). The invention relates additionally to a hydroxy-amino polymer obtainable by the above-mentioned process, wherein the ratio of the amount of alkylene oxide compound to the amount of carboxylic acid anhydride is at least 1.

Abstract: A decorative sheet (1) pertaining to the present invention comprises a base material (2), a colored ink layer (3), a primer layer (4), and a surface-protecting layer (5) in this order, wherein the base material (2) comprises a polyester-based film wherein a thickness of the base material (2) is 20 ?m or more but 95 ?m or less; the surface-protecting layer (5) comprises a cured product of an ionizing radiation-curable resin composition wherein elongation of the cured product according to JIS K6732 is 1% or more; and elongation of the decorative sheet according to JIS K6732 is 30% or more but 180% or less. This enables all of secondary workability, weather resistance, and fire resistance to be enhanced.

Abstract: A sheet is produced by curing an energy ray curable composition which includes a urethane acrylate oligomer and a compound having a thiol group in the molecule. The sheet has heat resistance to prevent outgassing.

Abstract: A method of preparing a flexible, substantially tack free gasket by forming a liquid composition which is a radiation polymerizable admixture of a free radical polymerizable urethane(meth)acrylate monomer, free radical polymerizable urethane(meth)acrylate oligomer, or combinations thereof; a free radical polymerizable diluent; a free radical polymerization photoinitiator; a wax; a thixotropic agent; and optionally an adhesion promoter and a colorant. The composition is distributed onto a substrate and then exposed to actinic radiation to cure the liquid composition into a flexible, substantially tack free gasket having a Shore A hardness of from about A20 to about A80.

Abstract: A sheet for forming a hard coating having outstanding low-temperature formability and slip properties and a composition for hard coatings used therefor are disclosed. The sheet for forming a hard coating includes a coating layer formed on one side thereof and containing a hard coating composition prepared by blending a UV curable resin having a (meth)acryloyl functional group with a bi- or higher valent polycarbonate.

Abstract: A coated optical fiber 1 comprising a glass fiber 10 and a primary coating layer 20 on the outer circumference of the glass fiber 10, wherein a resin constituting the primary coating layer 20 contains ingredient(s) having a molecular weight of more than 1,000, which is extracted with methyl ethyl ketone, in an amount of 5% by weight or more and 21% by weight or less and has a Young's modulus of 0.2 to 1.0 MPa. The resin constituting the primary coating layer 20 of the coated optical fiber 1 has a good curability, and the coated optical fiber 1 exhibits a reduced microbending loss.

Abstract: A photocurable adhesive composition, a module apparatus, and a method of assembling a module, the composition including a urethane (meth)acrylate binder, the composition having a viscosity of about 3,000 to about 6,000 cps at 25° C., and providing an adhesive film having an adhesive strength of about 30 N/cm2 or more.

Abstract: An adhesive composition, especially suitable for a two-part adhesive system curable via free radical polymerization comprises; (A) (meth)acrylate ester monomer; (B) chlorinated elastomeric polymer; (C) core-shell impact modifier; and (D) urethane (meth)acrylate oligomer. Example adhesive compositions include urethane (meth)acrylate oligomer (D) derived from (i) a di- or higher isocyanate having at least two isocyanate groups which differ in reactivity; (ii) a chain-extending reagent which has at least two groups selected from hydroxyl and/or amino groups, each capable of reaction with an isocyanate group of (i); (iii) a hydroxymethacrylate component or hydroxyacrylate component.

Abstract: A method of treating a surface of a substrate using modified urushiol derived from Toxicodendron vernicifluum is provided. More particularly, the reactivity of a hydroxyl group of urushiol extracted from fresh Toxicodendron vernicifluum is removed before the lacquer is used as a UV coating agent for a substrate such as a steel sheet. Therefore, the substrate may have high antibacterial activity, and excellent appearance and functionalities such as far-infrared radiation, blocking of electromagnetic waves, enhanced corrosion resistance, high crosslinking speed when a low content of a photoinitiator is used, excellent surface gloss and high scratch resistance.

Abstract: Provided is an active energy ray-curable inkjet ink containing at least photopolymerizable compounds. The photopolymerizable compounds include: at least one monofunctional monomer selected from the group consisting of a monofunctional monomer of which homopolymer has a glass transition temperature of 90° C. or higher, a monofunctional monomer having a ring structure, and a monofunctional monomer of which homopolymer has a glass transition temperature of 90° C. or higher and that has a ring structure; and urethane (meth)acrylate.

Abstract: This invention is directed to a polymer thick film UV-curable thermoformable dielectric composition. Dielectrics made from the composition can be used in various electronic applications to protect electrical elements and particularly to insulate and protect both the conductive thermoformable silver and the polycarbonate substrate below it in capacitive switch applications. The thermoformed capacitive switch circuit may be subsequently subjected to an injection molding process.

Abstract: This invention relates to film composites with a single coating of hard coat material which have a significant improved adhesion together with improved weather resistance while also increasing resistance to abrasion and cracking. In one embodiment, this film composite is comprised of a transparent base sheet having on one side thereof a weather resistant hard coat comprised of: at least one multifunctional acrylate monomer or oligomer; a dual-curable resin comprising an aliphatic urethane acrylate resin having isocyanate functional groups and an aliphatic urethane acrylate having hydroxyl functional groups; an ultraviolet (UV) stabilizer; and a photoinitiator.

Abstract: The invention relates to a photo-curing and strippable adhesive composition, and it has the advantages of good reworkability, weathering resistance, coating property and visibility. The invention also provides a strippable material and method for manufacturing the same and an electronic component and method for manufacturing the same.

Abstract: The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups) and 3) optionally NCO-reactive groups, by reacting at temperatures ?130° C. A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds that contain isocyanate-reactive groups and groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups), and then C) with one or more saturated, hydroxyl-containing compounds other than B), at least one of these compounds having an OH functionality of ?2, in the presence of D) a catalyst containing one or more zinc compounds, the reaction with compounds C) taking place at least proportionally with the formation of allophanate groups. The present invention also relates to the binders obtained by the process of the invention.

Abstract: An optical adhesive film prepared from an optical adhesive composition, an optical adhesive composition, and a display panel, the optical adhesive film having an elongation of about 200 to about 800% and a tensile strength of about 10 gf/mm2 or less, and the optical adhesive composition including a urethane (meth)acrylate copolymer, a reactive monomer, and an initiator.

Abstract: Disclosed is a curable coating agent composition which exhibits excellent wear resistance and weather resistance when applied as a coating agent to plastic or other substrates to be used outdoors. The curable coating agent composition comprises 95 to 65 parts by mass of a component (A) comprising an urethane adduct compound having weather resistance, 5 to 35 parts by mass of a component (B) comprising a specific organosilicon compound, 0.1 to 10 parts by mass of a component (C) which is a radical polymerization initiator, 1 to 12 parts by mass of a component (D) which is an ultraviolet ray absorber, and 10 to 1,000 parts by mass of a component (E) which is an organic solvent, with respect to 100 parts by mass of the components (A) and (B) in total.

Abstract: There are provided a fluorine-containing photocurable resin composition and a method of preparing a mold comprising the same and more particularly, a photocurable resin composition having chemical resistance, mechanical properties and high transmittance, etc. as well as being easily wetted with and released from thermosetting or photocurable resins for pattern formation regardless of additional surface treatment, as opposed to the existing polymer resin materials used for resin molds, and a method of preparing a resin mold using the same.

Abstract: The present invention describes the preparation of an aqueous polyurethane dispersion which is cured by radiation, and its use as binder.

Abstract: A method and a system for producing a change in a medium disposed in an artificial container. The method places in a vicinity of the medium at least one of a plasmonics agent and an energy modulation agent. The method applies an initiation energy through the artificial container to the medium. The initiation energy interacts with the plasmonics agent or the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the plasmonics agent or the energy modulation agent.

Abstract: Provided is a photocurable moisture-proof insulating coating material which places little burden on the environment and has excellent surface curability with low irradiation. In addition, this photocurable moisture-proof insulating coating material is hydrophobic and exhibits high adhesion to a substrate material. Also provided is a novel urethane (meth)acrylate which is used for this moisture-proof insulating coating material. A urethane (meth)acrylate of the present invention is obtained by reacting (a) a polyester polyol that has a structural unit derived from a hydrogenated dimer acid and a structural unit derived from a hydrogenated dimer diol, (b) a polyisocyanate compound and (c) a hydroxyl group-containing (meth)acrylate. A moisture-proof insulating coating material of the present invention contains this urethane (meth)acrylate and a (meth)acryloyl group-containing compound that does not contain a silicon atom.

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

Abstract: An optical fiber core having a primary layer and a secondary layer, which are laminated on a bare optical fiber. The primary layer is formed by curing an ultraviolet-curable resin composition containing a first silane coupling agent, which can be incorporated into a resin skeleton, and a second silane coupling agent, which cannot be incorporated into a resin skeleton. The first silane coupling agent contains a compound having a methoxy group, and the second silane coupling agent contains a compound having an ethoxy group.

Abstract: A photocurable material for sealing including (A) an oligomer having a weight average molecular weight of 10,000 to 30,000 and having (meth)acryloyl group(s), (B) a (meth)acrylate monomer, (C) a polythiol compound, and optionally (D) a carbodiimide compound enables the provision of a sealing material that has high compression recovery performance, high tensile strength and excellent flexibility, can have low hardness if required, and therefore has excellent sealing properties including air-tightness performance and water-proof performance and undergoes the formation of little surface tacks and the like.

Abstract: The present disclosure relates generally to compositions for natural and artificial nail coatings, and particularly, but not by way of limitation, to polymerizable compositions that provide improved adhesion-promoting and improved solvent-susceptibility.

Abstract: Disclosed herein are solventborne liquid UV-curable coating compositions comprising: a radiation curable compound comprising an acrylate-terminated compound having greater than two unsaturated sites, wherein the acrylate-terminated compound comprises a reaction product of reactants comprising: an adduct of a polyisocyanate, wherein the adduct of a polyisocyanate comprises a reaction product of reactants comprising a polyisocyanate comprising greater than two isocyanate groups and a compound having groups reactive with the isocyanate groups of the polyisocyanate; and an active hydrogen-containing acrylate; and a photoinitiator composition that includes a first photoinitiator composition for providing surface cure and a second photoinitiator composition for providing through cure of the resultant coating layer. Also disclosed are related multi-component composite coatings, coated substrates, and methods for coating a substrate.

Abstract: [Problem] To provide a composite film having light-curing property and weather resistance. [Means for solving] A composite film is one that comprises at least a urethane polymer, wherein both an initial b* value of the composite film measured by a spectrocolorimeter (value at an angle of 15 degrees) and a b* value after performing an accelerated weathering test for 120 hours (value at an angle of 15 degrees) are 4.0 or less, and a non-volatile component after heating the composite film at 130° C. for two hours is 96% or more.

Abstract: The ultraviolet cured optic binder has low curing shrinkage, low hardness and high optical transmittance. Technology programs are as follows: an ultraviolet cured optic binder composition includes the following raw material in parts by weight: 50 to 100 parts of prepolymer, 20 to 90 parts of inert resin, 35 to 70 parts of monomer, 5 to 12 parts of photoinitiator, 2 to 3 parts of coupling reagent, 1 to 2 parts of auxiliaries.

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., one or more di-functional oligomers where a respective polymer has a Glass Transition Temperature lower than about 40° C. and a phase separation inducing component. The phase separation may be induced during curing, resulting in a non-clear cured material having an improved impact strength and higher elongation, when compared to similar compositions without a phase separation inducing component.