Abstract: A circuit board, according to an embodiment, comprises: a first insulating layer; a second insulating layer disposed on one surface of the first insulating layer; and a third insulating layer disposed on the other surface of the first insulating layer. A circuit pattern is disposed on at least one insulating layer from among the first to third insulating layers, at least one insulating layer from among the first to third insulating layers comprises glass fiber, at least one insulating layer from among the first to third insulating layers does not comprise glass fiber, and the thicknesses of the first to third insulating layers are different from each other.

Abstract: The present disclosure provides a product for preventing the deterioration of an adhesive layer and a method for manufacturing the product. The product comprises a first product housing, a second product housing, an adhesive layer, and a protective layer. The second product housing is opposite to the first product housing. A gap exists between the second product housing and the first product housing. The adhesive layer is disposed in the gap between the first product housing and the second product housing, adhering to the first product housing and the second product housing. The protective layer is disposed on the adhesive layer. The protective layer is disposed in the gap, covering the outer surface of the adhesive layer. The protective layer bonds and cross-links to the adhesive layer chemically.

Abstract: Disclosed are photosensitive resin compositions capable of forming positive resin films with excellent heat shape retention. The photosensitive resin compositions comprises a polymer having a monomer unit represented by the following general formula (I) and a polyamideimide: where R1 is a single chemical bond or a divalent C1-C6 hydrocarbon group which may have a substituent, and R2 is a hydrogen or a monovalent C1-C6 hydrocarbon group which may have a substituent.

Abstract: A photosensitive resin composition for a flexographic printing original plate is disclosed which exhibits reduced adhesion of dust, dirt, and paper powder, resistance to UV ink and allows storage of the printing original plate for a long period of time. A water-developable photosensitive resin composition for flexographic printing, contains at least a polyamide and/or a polyamide block copolymer (a), a cross-linking agent having one or more unsaturated group(s) (b), a photo-polymerization initiator (c), and a fatty acid ester (d), wherein the fatty acid ester (d) has two or more hydroxyl groups and 24 or 25 carbon atoms in a molecule, wherein the fatty acid ester (d) is a fatty acid ester of a compound selected from fatty acids having a number of carbon atoms of 12 to 22, and wherein a content of the fatty acid ester (d) in the photosensitive resin composition is 0.2 to 6% by weight.

Abstract: Various embodiments disclosed relate to a resin having a structure of at least one of Formula I and Formula II: In Formula I or Formula II R1, R3, R4, R5, and R6 can each be independently selected from the group consisting of hydrogen and substituted or unsubstituted (C1-C10)alkyl. R2 is (C1-C10) alkylene. L is a substituted or unsubstituted (C1-C10)alkylene or (C3-C10)cycloalkylene. In Formula I or Formula II, n or m is greater than or equal to 0, and wherein the resin has an average molecular weight of less than 10,000 g/mol.

Abstract: The present invention relates to a hardenable polymer composition containing at least one acrylate compound, at least one silyl-terminated polymer and at least one photoinitiator, to the use of the polymer composition as or in an adhesive, a sealant, gasket, knifing filler or coating composition, and to an adhesive composition, a sealant composition, a gasket composition, a knifing filler composition or a coating composition comprising the polymer composition.

Abstract: Provided is a coating material composition which is capable of forming an undercoat layer for metallic vapor deposition, the layer being excellent in terms of adhesion to various bases and appearance. The actinic-ray-curable coating material composition according to the present invention comprises one or more resins A, a (meth)acrylate B, and a silane coupling agent C, wherein the resins A comprise a polymer A1 having a hydroxyl group with a hydroxyl value of 20-200 mg-KOH/g and/or an alkyd resin A2, the proportion of the resins A and that of the (meth)acrylate B are 20-60 mass % and 40-80 mass %, respectively, with respect to the total amount, which is taken as 100 mass %, of the resins A and the (meth)acrylate B, and the amount of the silane coupling agent C is 0.3-15 parts by mass per 100 parts by mass of the total amount of the resins A and the (meth)acrylate B.

Abstract: The present disclosure provides a photocurable coating composition, including: (a) a (meth)acrylate monomer or oligomer with at least four functional groups; (b) a difunctional (meth)acrylate monomer, (c) a monofunctional (meth)acrylate monomer, and (d) an initiator. The difunctional (meth)acrylate monomer is present in an amount of 30 to 70 wt % based on the total weight of the photocurable coating composition. The present disclosure also provides an optical film having a microstructure layer made from the photocurable coating composition. The optical film can be as a light guide film in a back light module of a display.

Abstract: A cured-film formation composition that forms a cured film exhibiting excellent liquid-crystal orientation properties and excellent light transmission properties when the cured-film formation composition is used as an orientation material and a layer of a polymerizable liquid crystal is arranged thereon. A cured-film formation composition including a component (A) that is a compound obtained by reacting a cinnamic acid compound of Formula (1) below with a compound having at least one epoxy group in one molecule, wherein R1, R2, R3, R4, and R5 are each independently a substituent selected from a hydrogen atom, a halogen atom, a C1-6 alkyl, a C1-6 haloalkyl, a C1-6 alkoxy, a C1-6 haloalkoxy, cyano, and nitro; and a component (B) that is a cross-linking agent, an orientation material which is obtained from the composition, and a retardation material which is obtained from the composition.

Abstract: A thermoset adhesive for bonding two materials having different linear expansion coefficients with reduced warping and without spaces being formed therebetween. The thermoset adhesive of the present invention comprises an epoxy resin, a core-shell rubber, thermally expansive microparticles, and a curing agent. The thermally expansive microparticles can have at least one or any combination of an average particle size of from 9 to 19 ?m, an expansion initiation temperature of from 70 to 100° C., and a maximum expansion temperature of from 110 to 135° C.

Abstract: A thermosettable pressure sensitive adhesive tape comprising at least first and second adhesive layers bonded together. Each of the adhesive layers comprises a thermosettable pressure sensitive adhesive, which is the photo-polymerization reaction product of starting materials. The starting materials for each adhesive layer comprises at least a photo-polymerizable acrylic component and a thermosettable epoxy component. The thermosettable pressure sensitive adhesive, used for either of the two adhesive layers, is not black when fully cured without the presence of a black coloring pigment. The first adhesive layer is made from a layer of starting materials that is thin enough to allow substantial photo-polymerization of the starting materials, even with the starting materials containing a sufficient amount of a black coloring pigment to cause the first adhesive to have a black color after the first adhesive is substantially cured.

Abstract: Disclosed are a sealant composition and a method of preparing the same wherein the sealant composition comprises: 70-80 wt % of a low-viscosity epoxy acrylate conforming to the structure of Formula I, 0.5-1 wt % of a photoinitiator, 5-15 wt % of silica microspheres, 5-15 wt % of resinous elastic microspheres, and 1-2 wt % of silane coupling agent, based on the total weight of the sealant composition wherein R1 and R2 are as defined herein. The sealant has improved coating linearity.

Abstract: The present invention relates to anti-slip coatings comprising resin, diluent, PMU particles and photo-initiator. The present invention also relates to the preparation of anti-slip coatings, methods for applying anti-slip coatings, and substrates coated with such anti-slip coatings.

Abstract: Amino benzoates have been found to be useful curing agents for epoxy resins particularly para amino benzoates containing at least two primary amine groups and at least two carboxyl moieties, the amino benzoates are particularly useful as curatives in prepregs.

Abstract: A method for producing finely structured surfaces, in particular in plastics, includes a) applying at least one coating compound on at least one substrate; b) forming a fine structure by a die, which has the negative of a fine structure, c) curing the resultant finely structured coating compound, obtaining a substantially cured coating; and d) separating the finely structured coating from the die, wherein steps d) and c) can also be carried out in the reverse order.

Abstract: The present invention is directed to catalytic compositions and to curable compositions containing them. Catalytic compositions of the present invention typically comprise: (i) a reactive compound comprising at least one group selected from acid-functional groups and/or groups that may be converted to acid-functional groups; (ii) a metal compound; and (iii) a compound different from (i) and (ii) that catalyzes an addition reaction between an ethylenically unsaturated compound and a thiol. Curable compositions according to the present invention comprise: (a) a polyene, (b) a polythiol, and (c) the afore-mentioned catalytic composition.

Abstract: Compounds useful as a photoinitiator and/or photosensitizer represented by the following formula (I): wherein R1 and R2 each independently designates an alkyl group of 1 to 12 carbon atoms or a cycloalkyl group of 5 or 6 carbon atoms or R1 and R2 form together with the carbon atom to which they are attached a cycloaliphatic ring of 5 or 6 carbon atoms, Si* represents an organopolysiloxane residue bonded via a silicon atom of this residue to the oxygen shown in formula (I), or a silane group SiR4R5R6, wherein R4, R5 and R6 each independently designates an alkyl group of 1 to 12 carbon atoms, a cycloalkyl group of 5 or 6 carbon atoms or an aryl group of 6 to 10 carbon atoms, and R3 designates a hydrogen atom or a group represented by the following formula (II) wherein R7 and R8 each independently designates an alkyl group of 1 to 12 carbon atoms or a cycloalkyl group of 5 or 6 carbon atoms or R7 and R8 form together with the carbon atom to which they are attached a cycloaliphatic ring of 5 or

Abstract: Provided is a copper plating technique that enables the filling of high aspect-ratio via-holes and through-holes in semiconductor substrates such as silicon substrates, organic material substrates or ceramic substrates. The disclosed technique involves a tertiary amine compound, which is obtained by reacting a heterocyclic compound with the epoxy group of a glycidyl ether group of a compound that has three or more glycidyl ether groups, and a quaternary amine compound thereof, as well as a copper plating additive, a copper plating bath, and a copper plating method employing the compounds.

Abstract: Provided is an alkali-developable photocurable/thermosetting resin composition from which a cured coating film that has excellent thermal shock resistance and exhibits excellent PCT resistance, HAST resistance and electroless gold plating resistance, which are important as a solder resist for semiconductor packages, can be formed. The alkali-developable photocurable/thermosetting resin composition is characterized by comprising (A) a carboxyl group-containing photosensitive resin, (B) a photopolymerization initiator, (C) a block copolymer and (D) a thermosetting component.

Abstract: A pre-adhesive composition is described comprising an acid-functional (meth)acryloyl copolymer and epoxy resin, which when crosslinked with or without using an ionic photoacid generator (PAG) provides a (e.g. pressure-sensitive) adhesive.

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: A UV-curable composition for coating vehicle axles includes at least one aliphatic epoxy acrylate and at least one acrylate selected from the group consisting of aromatic epoxy acrylate and polyester acrylate as a photochemically crosslinkable component; at least one reactive diluent; at least one photoinitiator; and at least one filler and/or at least one pigment.

Abstract: The present invention relates to a sheet for forming a hard coating and a method of formation thereof. The present invention can provide a transfer material or a surface protection sheet having a high refractive index and superior physical properties, such as hardness, friction resistance, abrasion resistance, chemical resistance, transparency, luster, and the like, for forming a hard coating on the surface of various molded products, including resin molded products or wood products, and a method for forming a hard coating from such transfer material or surface protection sheets.

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

Abstract: The disclosure provides a benzene ring containing compound, sealing gel, a process for preparing the same and use thereof. The compound has the following Formula (1), wherein R1 and R2 are the same or different, and represent alkyls of 1˜4 carbon atoms, respectively. The sealing gel of the disclosure comprises one or more compounds as shown by Formula (I). The sealing gel of the disclosure not only has high binding strength to a glass substrate, but also has a good binding performance to the oriented film, thereby preventing the drop of the binding performance between the colored film substrate and the array substrate, while also decreasing the contamination of external impurities to the liquid crystals in the box.

Abstract: The present invention provides an inkjet ink comprising at least 30% by weight of organic solvent based on the total weight of the ink, a radiation curable material, a photoinitiator and optionally a colourant. The invention also provides an apparatus for printing the ink wherein the apparatus comprises at least one printhead, a means for evaporating solvent from the printed ink and a source of actinic radiation. Furthermore, the invention provides a method of inkjet printing comprising i) inkjet printing the inkjet ink as defined above on to a substrate; ii) evaporating at least a portion of the solvent from the printed ink; and iii) exposing the printed ink to actinic radiation to cure the radiation curable material.

Abstract: A glass printing ink and glass printing lacquer are prepared, which contain at least one photoinitiator, at least one resin and at least one additional substance. The resin is an epoxy resin based on bisphenol A, diluted in a UV-curing monomer, or a resin with functional groups containing free functional amino, hydroxy, epoxy, acid, acid anhydride and/or acrylate groups, or a combination of the epoxy resin with the resin with functional groups. The at least one additional substance is a wax. The use of the glass printing ink and glass printing lacquer in printing a glass substrate and processes for the printing of a glass substrate are also described.

Abstract: Ink deposited on a substrate by an ink-jet arrangement to form a protective layer includes hardenable oligomer, hardenable monomer selected from a group including alkoxylated and/or poly-alkoxylated acrylic monomers comprising one or more di- or tri-acrylates, and a photoinitiator. The oligomer has a room temperature viscosity greater than 1 Pa·s. The oligomer to monomer weight ratio is between 1/6 and 1/25. The ink has a room temperature viscosity between 15 and 22 mPa·s and between 5 and 2 mPa·s at 60° C., and a room temperature surface tension between 15 and 28 mN/m. The photoinitiator is activated by a UV source having an appropriate wavelength and intensity.

Abstract: An ultraviolet (UV) crosslinkable acrylic pressure sensitive adhesive comprises an acrylic copolymer and a cationic photoinitiator. The acrylic copolymer comprises pendant reactive functional groups. The pressure sensitive adhesive formed from the acrylic copolymer with the pendant reactive functional groups result in high green strength and/or high temperature holding strength of the adhesive.

Abstract: A pre-adhesive composition is described comprising an acid- and epoxy-functional (meth)acryloyl copolymer, which when crosslinked using an ionic photoacid generator (PAG) provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles having desirable properties.

Abstract: An orange radiation curable ink including at least one curable monomer, at least one organic gellant, at least one photoinitiator, and at least one colorant, wherein the ink exhibits a reflectance on a substrate at a loading of from about 2 mg/inch2 to about 7 mg/inch2 that ranges from 0% to about 10% at a wavelength of 550 nm and that ranges from 85% to about 95% at a wavelength of about 660 nm, substantially matches PANTONE® Orange.

Abstract: The resin composition of the present invention is a resin composition characterized by including (a) a polyimide, a polybenzoxazole, a polyimide precursor or a polybenzoxazole precursor, (b) 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, or 2,3-dihydroxynaphthalene, and (c) a thermal cross-linking agent having a specific structure. By the use of the resin composition of the present invention, it is possible to reduce the transmittance in the visible region of a cured film while maintaining the transmittance of a resin film before curing.

Abstract: Provided herein is a photocurable dianhydrohexanehexol derivative, a method preparing the same, and a composition including the same, for example, to a photocurable compound derived from environmentally friendly biomass, the compound having a structure where a 2-hydroxypropyl methacrylate (HPM) functional group prepared by reacting a biomass derived dianhydrohexanehexol (1,4:3,6-dianhydro-d-hexane-1,2,3,4,5,6-hexol, DHH) compound under an optimal reaction condition is combined, a preparing method thereof, and a photocurable composition comprising the photocurable compound.

Abstract: The present invention relates to the use of alkoxysilane components in the presence of acid-generating photoinitiators in radiation-curable, free-radically crosslinkable formulations which in the cured state offer a particular degree of corrosion control for metallic substrates.

Abstract: Branched and hyperbranched oligomers and polymers that contain a cashew nutshell oil or liquid component are provided. The novel oligomers and polymers are suitable for use as an oil, lubricant, coating, adhesive, resin or composite.

Abstract: A fully curable jettable composition having a viscosity less than 30 cps at a temperature within the range of 15° C.-180° C. comprising (i) at least one low viscosity reactive resin; (ii) at least one higher viscosity resin having a viscosity greater than twice that of the low viscosity resin and a functionality of greater than or equal to 2; (iii) at least one curable toughener, (iv) at least one initiator for the polymerization of the resins, and (v) at least one stabilizer for delaying the curing of the resins of the composition. The composition can be jetted from piezo electric printing heads under the control of a computer program to form a multi-layered article, for example, a three dimensional article, in which the adjacent droplets merge and are cured homogeneously together.

Abstract: The present invention provides a coating composition and a coating film that comprises a binder containing a UV-curable functional group, a compound containing a fluorine UV-curable functional group, a photoinitiator; and nano-sized particles. The coating film according to the present invention has excellent abrasion resistance and contamination resistance such as fingerprint trace removability and scribbling resistance.

Abstract: Disclosed is a color filter ink composition that includes an acrylic-based copolymer resin including repeating units represented by a particular chemical formula, a polymerizable monomer, a pigment, and a solvent. According to the present invention, the color filter ink composition can have excellent ejection properties and ejection stability by using a new acrylic-based copolymer resin as a binder resin, and also can have excellent storage stability, so that it can be used for a long period. In addition, a pattern formed using the color filter ink composition can have improved heat resistance, chemical resistance, and film strength.

Abstract: Compounds of the formula I or (I?), wherein R1 and R?1 for example are hydrogen, C3-C8cycloalkyl or C1-C12alkyl, R2 and R2? for example are hydrogen; unsubstituted C1-C20alkyl or substituted C1-C20alkyl; and R8 and R9 for example are hydrogen, C1-C12alkyl which optionally is substituted, or phenyl which optionally is substituted; exhibit an unexpectedly good performance in photopolymerization reactions.

Abstract: An actinic energy radiation curable ink-jet ink comprising an actinic energy radiation polymerizable compound, wherein the actinic energy radiation polymerizable compound comprises a vinyl ether compound, a total content of the vinyl ether compound is 30% or more by mass, the vinyl ether compound comprises a bis-vinyl ether compound and a multifunctional vinyl compound having three or more vinyl ether groups, 10 to 70% by mass of the ink is the bis-vinyl ether compound, and 5 to 70% by mass of the ink is the multifunctional vinyl compound having three or more vinyl ether groups.

Abstract: Photoinitiators mixture comprising (i) at least one compound selected from the group consisting of alpha-hydroxy ketones, monoacylphosphine oxides, bisacylphosphine oxides, ketosulfones, benzil ketals, benzoin ether, phenylglyoxylates, borates and titanocenes; and (ii) at least one compound of the formula (I) or (I?) R1, R?1, R2 and R2? R?9 independently of each other for example are hydrogen or C1-C12alkyl R7, R8, R9, R?8 and R?9 independently of each other for example are hydrogen, C1-C12alkyl which optionally is substituted or phenyl which optionally is substituted, exhibit excellent photoinitiating properties.

Abstract: Disclosed is a photosensitive resin composition for a color filter protective layer including a cross-linkable alkali soluble resin including a repeating unit represented by the following Chemical Formula 1, a reactive unsaturated compound, a photopolymerization initiator, and a solvent. In Chemical Formulae 1 to 3, R1 to R6 and A1 to A3 are the same as in the detailed description.

Abstract: The present invention relates to a phenoxy resin for an optical material obtained by subjecting at least one selected from specific difunctional epoxy resins and at least one selected from specific difunctional phenols to polyaddition reaction, wherein a film comprising the above phenoxy resin has a refractive index of 1.580 or less at 25° C. and a wavelength of 830 nm, a resin composition for an optical material containing the above phenoxy resin, a resin film for an optical material comprising the above resin composition and an optical waveguide produced by using the above resin composition and/or the above resin film.

Abstract: Disclosed is a sealant composition for a liquid crystal display device, the sealant composition including a (meta) acrylate compound as expressed in Chemical Formula 1 below

Abstract: The present invention relates to a polymer resin compound including a new polycyclic compound, and a photosensitive resin composition including the polymer resin compound as an effective binder matrix. In particular, the photosensitive resin composition according to the present invention uses a polymer resin compound, which includes a compound having double cyclic structure in one molecule as a monomer, as a binder matrix. Accordingly, the photosensitive resin composition has an excellent photosensitivity and an excellent developing property, and has a low distortion property during plastic processing. For this reason, the photosensitive resin composition has an advantage of curing various transparent photosensitive materials used to manufacture a color filter of a liquid crystal display, for example, a column spacer, an overcoat, a passivation material, and the like.

Abstract: A sealant for a one drop fill process of the invention contains the following components (1), (2), (3), and (4): (1) a curing agent composed of a reaction product produced by reacting an acid compound and a polyamine containing, within its molecule, at least one active hydrogen and at least two nitrogen atoms; (2) a heat-curable resin; (3) an acylphosphine-based photoinitiator; and (4) a photo-curable resin. A heat-curable resin containing a bisphenol A propylene oxide-modified epoxy resin is preferably used as the heat-curable resin (2), and a photo-curable resin containing a bisphenol A acrylate-modified resin is preferably used as the photo-curable resin (4).

Abstract: The present invention relates to a photochromic composition comprising multifunctional (meth)acrylate-based monomers having two or more functional groups, a photochromic dye and an aromatic vinyl compound, in which the content of the aromatic vinyl compound is more than 30% by weight and 70% by weight or less, a photochromic film produced by using the same, and a method for producing the photochromic film.

Abstract: A colored curable composition including: (A) a pigment dispersion containing (a-1) a pigment, (a-2) a compound having a pigment mother nucleus structure and an amino group in a molecule, and (a-3) a resin having an acid group and a polymerizable group; (B) an oxime ester initiator; and (C) a polymerizable compound.

Abstract: Disclosed is a method of producing a thin film transistor substrate having high light sensitivity, heat-resistance, impact resistance, and a photosensitive composition used by the same, the method including forming data wires on an insulating substrate, forming an organic insulating film on the data wires by applying a photosensitive composition comprising a terpolymer, where the terpolymer is derived from monomers of an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride, or a mixture thereof, an unsaturated epoxy group-containing compound, and an olefinic compound.

Abstract: The invention features a dental composition containing a polycyclic aromatic compound, such as 2-ethyl 9,10-dimethoxy anthracene (EDMOA), in an amount that provides the composition with fluorescence mimicking that of natural teeth.