Abstract: Embodiments of the present invention provide a method, comprising obtaining a lecithin-containing material, in some aspects derived from a crude refining stream, comprising 20-80 wt % acetone insoluble matter, 1-30 wt % free fatty acid, and less than 10 wt % water, adding a fatty acid or carboxylic source to the lecithin-containing material to obtain a lecithin fatty acid blend or lecithin carboxylic acid blend and incorporating the blend into asphalt or oil field applications.

Abstract: A latex composition contains a carboxy-modified conjugated diene polymer latex, a xanthogen compound, and a metal oxide.

Abstract: A latex composition containing a carboxy-modified polymer latex, a xanthogen compound, and a typical metal compound in a form other than an oxide. This latex composition has excellent stability, can avoid delayed (Type IV) allergic reactions in addition to immediate (Type I) allergic reactions, and can provide a molded film, such as a dip-molded product, having excellent tear strength and tensile strength. Also a molded film and a substrate with an adhesive layer which are obtained using the latex composition.

Abstract: A coating composition includes a (A) binder component and a (B) pigment component. The (A) binder component includes (A1) polyvinyl butyrate, (A2) a particular film forming resin, (A3) an acid, (A4) an optional functionalized tri-alkoxy silane, and (A5) an optional polymeric phosphate ester. The (B) pigment component includes (B1) a calcium ion-exchanged silica, (B2) a corrosion inhibiting pigment, and (B3), a polyalkylene oxide phosphate. The coating composition is formed by combining the aforementioned components. In a method, the coating composition is applied to a substrate.

Abstract: In a first step, a sample formed of a polyester or decomposition products of a polyester is dissolved in a pretreatment liquid containing 1,1,1,3,3,3-hexafluoro-2-propanol and an organic base to produce a reaction product of the sample, and in a second step, the obtained reaction product is mixed into a solvent (measurement solvent) containing deuterated chloroform and deuterated 1,1,1,3,3,3-hexafluoro-2-propanol to fabricate a sample liquid. Next, in a third step, the amount of the reaction product in the sample liquid is measured through NMR aiming at hydrogen atoms to determine the amount of an acid anhydride structure in the sample.

Abstract: A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a polycarbonate resin; about 1 part by weight to about 5 parts by weight of a silicone-based rubber modified vinyl graft copolymer; and about 0.03 parts by weight to about 0.2 parts by weight of a metallic salt compound; wherein the metallic salt compound comprises a compound represented by the Formula 1, a compound represented by the Formula 2 and/or a compound represented by the Formula 3 as defined herein. The thermoplastic resin composition can have good properties in terms of impact resistance, impact resistance after ultrasonic welding, flame retardancy, heat resistance, and the like.

Abstract: A composition includes a polycarbonate resin formed via an interfacial polymerization process and from 0.05 ppm to 50 ppm of a sulfonic acid. A molded article formed from the composition may exhibit a yellowness index that is less than that of a reference molded article formed from substantially similar polycarbonate composition comprising the polycarbonate resin but in the absence of the sulfonic acid. Methods for forming the molded article in accordance with the above are also described.

Abstract: A resin composition including: a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium; and a resin or precursor thereof that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, a urethane skeleton, a 4- to 7-membered ring lactone skeleton, an alkyl group having from 6 to 30 carbon atoms and an alkylene group having from 6 to 30 carbon atoms, a production method thereof, a resin composition molded body obtained by using the resin composition, and a production method thereof.

Abstract: Provided is an aromatic polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.01 part by mass to 0.1 part by mass of an alicyclic epoxy compound (B), 0.2 part by mass to 0.6 part by mass of a polyether compound (C) having a polyoxyalkylene structure, and 0.005 part by mass to 1 part by mass of a phosphorus-based compound (D), wherein a difference between a YI value of a 5-millimeter thick molded body, which is obtained by molding the aromatic polycarbonate resin composition at 320° C., after a lapse of 3,000 hours under an environment at 85° C. and a humidity of 85%, and an initial YI value thereof is 3.0 or less.

Abstract: The present invention provides a graphite/graphene composite material comprising flat graphite particles and graphene aggregates, wherein the flat graphite particles are stacked using the graphene aggregates as a binder so that the basal surfaces of the graphite particles are overlapped with one another, and the graphene aggregates are composed of deposited single-layer or multi-layer graphenes.

Abstract: A mono or multi-layer biaxially oriented polyester film is described. Also described, is a process for producing the mono or multi-layer biaxially oriented polyester film. Uses of a surface-treated filler material product as a voiding agent in the mono or multi-layer biaxially oriented polyester film, an article that includes the mono or multi-layer biaxially oriented polyester film as well as the use of the mono or multi-layer biaxially oriented polyester film in packaging products are also described. The packaging products can include: paper and glass coverings, insulating materials, solar, marine and aviation applications, science, electronic and acoustic applications, wires, cables, radio frequency identifications, flexible circuits, graphic arts, filter products, cosmetic products, household products, imaging and recording media, or industrial products.

Abstract: Provided is a thermoplastic resin composition having excellent electric properties and the thermoplastic resin composition comprises: (A) 100 parts by weight of a polycarbonate resin; (B) 2 to 6 parts by weight of a phosphorous-based flame retardant; and (C) 0.2 parts by weight to 2 parts by weight of a mineral filler.

Abstract: A protective coating composition for providing protection to a component of a ram air turbine system in need thereof. The protective coating composition comprises an aqueous-soluble or alkaline-soluble polymer matrix, one or more compressible fillers, and one or more non-compressible fillers. The disclosure also provides a method for providing a protective coating onto components of a ram air turbine system in need thereof for providing indentation and scratch resistance thereto.

Abstract: The invention relates to polymeric-inorganic nanoparticles and preparation processes thereof. The invention also relates to a powder, concentrate and lubricating composition comprising these polymeric-inorganic nanoparticles, to a method of dispersing nanoparticles in lubricating oil, as well as the use of these polymeric-inorganic particles in an oil lubricant formulation to reduce pour point, friction and wear.

Abstract: An inkjet-printed article has an ink receptive medium with a substrate and an aqueous-based ink-receptive layer disposed thereon. The aqueous-based ink-receptive layer includes: (a) a water-soluble salt of a multivalent metal cation at 0.6-49 weight %; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent or (d) silica particles. The article also has an inkjet-printed image disposed on the aqueous-based ink-receptive layer, provided from one or more aqueous pigment-based inks, each of which has a) an anionically-stabilized pigment colorant; b) one or more water-miscible humectants at a total amount of 1-20 weight %, each of which has a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups.

Abstract: A flexible inkjet printed article includes an ink receptive medium comprising a substrate and an aqueous-based ink-receptive layer. The aqueous-based ink-receptive layer has: (a) a water-soluble salt of a multivalent metal cation; (b) one or more of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent or (d) silica particles. An inkjet-printed image is disposed on the ink-receptive layer, provided from one or more aqueous pigment-based inks, each having: a) one or more anionically-stabilized pigment colorants; b) one or more water-miscible humectants at 1-20 weight %, each of which has a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups. A functional layer comprising an adhesive composition disposed on the inkjet-printed image; and a flexible polymeric film or paper adhered to the functional layer.

Abstract: A configurable, dismantlable display case system, with supports for promotional graphics, for use as a display cabinet, the constitution thereof being simple and entailing a reduced cost, and with the possibility of changing the configuration of its assembly and the promotional campaign thereon. The modular display system consists generally of a plastic shelving unit, with trays at different levels, linked at their corners by means of pillars consisting of PVC profiles, of a generally triangular shape, which fit adjustably into corresponding housings, one at each corner and on both sides of each tray; short profiles formed by extruded PVC profiles of a more reduced length than the pillar profiles, of a generally triangular shape with rounded corners which slot adjustably into the corresponding housings of the tray, and comprising non-slip ferrules inserted into the profile forming the leg at the area in contact with the floor; and assembly method.

Abstract: A reinforced thermoplastic resin composition which has good moldability and can increase a rigidity, impact resistance, mechanical strength, heat resistance and flame retardancy of an obtained molded article, and a molded article having a high rigidity, impact resistance, mechanical strength, heat resistance, flame retardancy, and weld strength. The reinforced thermoplastic resin composition including 80% to 100% by mass of a polycarbonate resin (A); a resin main component (C) containing 0% to 20% by mass of a specific graft copolymer (G); a polyethylene terephthalate resin (B) obtained by solid phase polymerization of recycled and/or repelletized material; an inorganic filler (D); and a glycidyl ether unit-containing polymer (E) having a mass average molecular weight of 3,800 to 60,000 at a specific ratio.

Abstract: A nano-structured block copolymer that includes a self-assembled block copolymer disposed on a substrate, wherein the block copolymer includes a plurality of block structural units, and at least two block structural units have a solubility parameter difference of greater than or equal to about 5 megaPascal1/2.

Abstract: A graphene sheet combining graphite flake structure includes a graphite nanoplatelet material and a graphene material. The graphene material is mixed in the graphite nanoplatelet material, and the content of the graphene material is between 1% and 80% of the graphite nanoplatelet material. A slurry for manufacturing the graphene sheet combining graphite flake structure and a manufacturing method for the graphene sheet combining graphite flake structure are also disclosed.

Abstract: An anti-corrosion composition containing at least one fatty acid ester, at least one glycol, at least one ethylene oxide/propylene oxide (EO/PO) alkoxylate, at least one polyethylene glycol ester, and at least one modified lecithin is provided. An anti-corrosion composition also is provided which contains at least one fatty acid ester, at least one glycol, at least one sorbate, and at least one modified lecithin. A method of preparing an anti-corrosion composition is also provided. At least one modified lecithin can be blended with at least one fatty acid ester, at least one glycol, at least one EO/PO alkoxylate, or at least one polyethylene glycol ester, or any combination thereof. A method of inhibiting corrosion of a metal surface including applying an anti-corrosion composition to the metal surface in an amount effective to inhibit corrosion of the metal surface is further provided.

Abstract: The current invention concerns a textile coating composition comprising an aqueous emulsion of a midblock sulfonated styrenic block copolymer and a poly(vinyl alcohol). It also concerns a method for preparing the textile coating composition and its application. It also concerns fabrics on which the coating compositions have been applied.

Abstract: Water-based compositions containing a low VOC coalescent, a latex or water-dispersible polymer, and a water-insoluble UV-VIS (preferably, ultraviolet) absorber.

Abstract: A method of printing articles having variable conductivities, including those having conductivity gradients.

Abstract: Amino alkoxy-modified silsesquioxanes (amino AMS), and/or amino co-AMS compounds that also comprise a mercaptosilane or a blocked mercaptosilane, are excellent adhesives for coating plated or unplated metal wire for adherence of the wire to a rubber stock. The amino AMS and/or the amino/mercaptan co-AMS adhesives can be used with all types of rubber and there is no requirement for the use of special adhesive additives to the rubber vulcanizates, such as, but not limited to, cobalt, resins and high sulfur levels. In particular, the use of amino AMS and/or amino/mercaptan co-AMS compounds as adhesives for bonding wire to rubber also improves the adherence performance of the reinforcements to obtain sufficient bonding that is resistant to degradation over the course of time, especially resistance to thermal aging and/or thermo-oxidizing aging, in particular corrosion in the presence of water.

Abstract: An ink for inkjet recording includes water; a hydrosoluble solvent; a pigment; and a copolymer including a phosphonic acid group. The copolymer including a phosphonic acid group includes structural units having the following formulae (1) and (2): wherein R1 represents a hydrogen atom or a methyl group; and M represents a hydrogen atom, an alkali metal or an organic ammonium; and wherein R2 represents a hydrogen atom or a methyl group; R3 represents an alkyl group having 1 to 4 carbon atoms; and each of n and m represents 0 or an integer of from 1 to 30, provided n+m is from 2 to 30.

Abstract: The present arrangement is directed to a polymer resin composition having polyvinyl acetate resin having 60 to 80% by weight of vinyl acetate group as a base resin. The composition has the following components based on 100 parts by weight of the base resin: 10 to 15 parts by weight of ethylene resin having a polar group or its copolymer resin; 29 to 40 parts by weight of ether-type polyurethane resin; 140 to 171 parts by weight of aluminum hydrate; 15 to 55 parts by weight of magnesium hydrate and flame retardant aid; 3 to 5 parts by weight of antioxidant; 10 to 15 parts by weight of plasticizer; and 4 to 0.5 parts by weight of crosslinking agent.

Abstract: A composite sheet material and method for forming the same is provided that includes a substrate, a matrix, and a cover sheet. The substrate has a first face surface, a second face surface, and a plurality of edges, and includes a thermoplastic material. The matrix is attached to the substrate. The matrix includes a support component having a first melting point, and a thermoplastic component having a second melting point. The second melting point is less than the first melting point. The cover sheet imparts one or more surface characteristics to the composite sheet material during thermo-pressure formation of the composite sheet material.

Abstract: A photosensitive conductive film 10 according to the invention includes a support film 1, a conductive layer 2 containing conductive fiber formed on the support film 1, and a photosensitive resin layer 3 formed on the conductive layer 2.

Abstract: A photosensitive conductive film 10 according to the invention includes a support film 1, a conductive layer 2 containing conductive fiber formed on the support film 1, and a photosensitive resin layer 3 formed on the conductive layer 2.

Abstract: A colorant composition for tinting or coloring surface coverings or paint is. provided that has a low volatile organic compound (VOC) concentration, alkylphenoi ethoxylate surfactants (APE) free and hazardous air pollutants (HAPS) free. Additionally, the colorant composition has performance properties substantially equal to or better than tinters possessing high VOC concentrations. The colorant composition includes a colorant component, a dispersant including a polyamide, a surface active agent, water, and optional additives, The polyamide is a high molecular weight polyamide.having at least two anchoring amines, and the surface active agent includes phosphoric acid, phosphate esters, or salts thereof.

Abstract: Compositions of biobased polymer blends of polymers and a polyhydroxyalkanoate copolymer are described. In certain embodiments, the copolymer is a multiphase copolymer blend having one phase a glass transition temperature of about ?5° C. to about ?50° C. Methods of making the compositions of the invention are also described. Also articles, films and laminates made from the compositions are described.

Abstract: The present invention provides compositions that enable excellent early hardness development in coating applications, the compositions comprising a blend of one or more acrylic emulsion copolymer, pA, having a Tg of 20° C. or higher, and one or more acrylic emulsion copolymer, pB, having a Tg at least 15° C. lower than that of pA, together with one or more additive chosen from a coalescent having a normal boiling point no greater than 300° C., a naturally derived plasticizer, and mixtures thereof. The compositions may be ambient curable.

Abstract: A polyamide composition for surface-mounted components is described. Also described are compositions for surface-mounted components (SMCs) including a semiaromatic polyamide modified by a hydroxyaromatic compound, reinforcing fillers, and a flame retardant. Further, the compositions have many advantages linked to the uses thereof in lead-free reflow soldering processes, in particular a good dimensional stability and a blistering resistance during the use of articles produced from these compositions.

Abstract: Provided is a chloroprene rubber superior in the effectiveness of preventing mold staining. The chloroprene rubber contains at least one compound selected from phosphite ester compounds (such as tris(nonylphenyl)phosphite ester and tributyl phosphite ester) and phosphate ester compounds (such as tri(nonylphenyl)phosphate ester and tributyl phosphate ester) in a total amount of 0.1 to 5.0 mass % and additionally at least one compound selected from sulfonic acid compounds (such as benzenesulfonic acid and dodecylbenzenesulfonic acid) and fatty acid compounds in a total amount of 0.1 to 3.0 mass %.

Abstract: A composition that includes at least one silane-functional polymer P and 20 to 60% by weight of aluminum hydroxide or magnesium hydroxide or mixture thereof, is disclosed. The composition has a viscosity of 500 to 20,000 mPa·s measured according to DIN 53018 at a temperature of 20° C. The composition is suitable as a liquid membrane and has very good flammability properties, i.e., it is difficult to ignite and is self-extinguishing.

Abstract: Provided is a resin composition capable of achieving a higher plating property. The resin composition comprises relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass filler and 2 to 20 parts by weight of a laser direct structuring additive, wherein the laser direct structuring additive comprises a metal oxide, a component of the largest blending amount among the metal components is tin, a component of the second largest blending amount is antimony, and in addition lead and/or copper are contained.

Abstract: A method for curing a mixture of a matrix and a curing agent based on sulfur-containing polymers on command and so rapidly that a tack-free surface results. A method for coating a substrate with the composition and of curing a sealant is also provided. The matrix and curing agent containing sulfur-containing polymers. The mixture is an uncured mixture with an isocyanate content, and the matrix is uncured and contains a mercaptan-terminated base polymer based on at least one polyether, polythioether, polysulfide or copolymers thereof. The uncured matrix, the curing agent, or both contain at least one photoinitiator based on sterically-inhibited tertiary amines. The mixture cures in the temperature range of ?10 to +70° C. after the high-energy actinic radiation is applied. Corresponding matrices A, mixtures B, curing agents, sealant systems, and substrates, e.g., aircraft are contemplated.

Abstract: An environment-friendly adhesive composition is provided that includes about 10 to about 70 parts by weight of a tackifying agent base including an acryl-based attaching agent as a raw material, about 5 to about 40 parts by weight of a terpene-based tackiness improver, about 0.5 to about 5 parts by weight of an epoxy-based crosslinking agent, about 5 to about 60 parts by weight of a flame retardant, and a combination thereof, based on 100 parts by weight of a solvent excluding benzene, toluene and xylene (BTX). The flame retardant includes at least one selected from a group consisting of a halogen-based flame retardant, an antimony flame retardant, and a phosphorus-based flame retardant. The adhesive composition and a tape manufactured using the same may be used exclusively in a vehicle industry, and in various electronic industries.

Abstract: A composition for making a cast, thermoformable sheet or slab, comprising: a syrup comprising: about 30-40% SSI—acrylic pre-polymerized syrup at 20% solids; about 30-40% MMA—methyl methacrylate; about 2-3% BA—Butyl acrylate; about 1-15% acrylic chips; and about 1-15% rigid particles with a mean diameter of about 0.5-2000 ?m. The rigid particles may preferably comprise a polymeric material such as poly allyl diglycol carbonate particles. A method for producing a thermoformed article having a textured surface comprising mixing the syrup as above; swelling the acrylic chips; degassing the syrup; heating the syrup; casting the syrup into a sheet; and thermoforming the cast sheet against a mold.

Abstract: Various processes and methods are disclosed for incorporating polyvinyl alcohol additives into products. In one embodiment, polyvinyl alcohol particles are dissolved in a solvent without the use of external heat to form a polyvinyl alcohol solution for incorporation into a product. In an alternative embodiment, polyvinyl alcohol particles are directly incorporated into a starch-based adhesive composition. Through the processes of the present disclosure, solid polyvinyl alcohol particles can be delivered directly to a manufacturing facility where the product that incorporates the polyvinyl alcohol additive is being made or formulated. In this manner, since the polyvinyl alcohol particles are not predissolved, the costs associated with shipping and transporting the polyvinyl alcohol product are greatly reduced.

Abstract: A polylactic acid based film includes a composition containing a polylactic acid based resin (A), a thermoplastic resin other than polylactic acid based resin (B), and a compound treated with a surface treatment agent as filler (C), the polylactic acid based resin containing a crystalline polylactic acid based resin and an amorphous polylactic acid based resin, and resin (A) accounting for 10 to 95 mass % and resin (B) accounting for 5 to 90 mass % of a combined total of 100 mass % of resin (A) and resin (B), and filler (C) accounting for 10 to 400 parts by mass per a combined total of 100 parts by mass of resin (A) and resin (B).

Abstract: Novel decorative products including interior home decorative products, garden ornaments, building decorative products and the like are disclosed in which the novel decorative products are characterized in having rigid shells of compacted fiber reinforced magnesium oxychloride composite, seam lines of below two millimeters and cores of which densities can be adjusted according to the preferred weight of the products during the product design stage. The aforesaid compacted fiber reinforced magnesium oxychloride composite is characterized in having compacted structures of F-5 MOC phase magnesium oxychloride. A method for producing the novel decorative products is also provided.

Abstract: The invention relates to polycarbonate compositions and copolycarbonate compositions with improved melt stability, the preparation thereof and the use thereof for the production of mouldings and mouldings obtainable therefrom, wherein the compositions contain a polycarbonate or copolycarbonate containing bisphenol A, and at least one phosphorus compound of the formulae (1) and (2), wherein R1 and R2 independently of each other and among one another are chosen from the group which includes branched alkyl radicals, aryl radicals and substituted aryl radicals.

Abstract: The present invention relates to impact-modified polyester/polycarbonate compositions containing: A) 41 to 80 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of aromatic polycarbonate, B) 5 to 40 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of polyester with a content of isophthalic acid building blocks, C) 1 to 15 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of rubber-modified graft polymer, D) 0 to 25 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D, of a flame retardant, E) 0 to 20 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D=100, of vinyl (co)polymer, F) 0 to 50 parts by weight, in each case relative to the sum of the parts by weight of components A+B+C+D=100, of additives, wherein all the stated parts by weights in the present application are normalized such that

Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides Fe(III) and Bi(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The Fe(III) and Bi(III) complexes are comparable or superior to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.

Abstract: Provided is a dripping inhibitor excellent in handling characteristics. The present invention provides a dripping inhibitor including a modified polytetrafluoroethylene, the inhibitor having an average particle size of 300 to 800 ?m, an apparent density of 0.40 to 0.52 g/ml, a compression ratio of 1.20 or less, an aggregate disintegration degree with 50-sec vibration of 70% or more, a cylinder extrusion pressure at a reduction ratio 1500 of 80 MPa or less, and a standard specific gravity (SSG) of 2.140 to 2.230.

Abstract: The present invention relates to a reinforced thermoplastic resin composition having excellent moldability, processability, and mechanical strengths, as well as being capable of improving the drop impact resistance (surface impact strength determined by a falling ball test). The reinforced thermoplastic resin composition of the present invention includes 10 to 60% by mass of a graft copolymer (A) having a graft chain (A2) grafted to a rubber polymer (A1); 40 to 90% by mass of a matrix polymer (B) which includes one or more types of polymers selected from the group consisting of a vinyl-based copolymer (B-1), a polycarbonate resin (B-2), and a polyester resin (B-3); 0.1 to 50 parts by mass of an inorganic filler (D); and 0.5 to 20 parts by mass of a glycidyl ether unit-containing polymer (E) having a mass average molecular weight of 3,000 to 200,000.

Abstract: A method for producing a polylactic acid resin composition, including the following steps (1) and (2): step (1): subjecting an organic crystal nucleating agent to a wet pulverization in the presence of a carboxylic acid ester having a weight-average molecular weight of from 150 to 600 and a viscosity at 23° C. of from 1 to 500 mP·s and/or a phosphoric ester having a weight-average molecular weight of from 150 to 600 and a viscosity at 23° C. of from 1 to 500 mPa·s to give a finely pulverized organic crystal nucleating agent composition; and step (2): melt-kneading a raw material for a polylactic acid resin composition comprising the finely pulverized organic crystal nucleating agent composition obtained in the step (1) and a polylactic acid resin.

Abstract: The invention provides a circuit board comprising a substrate and a dielectric material provided on the substrate. The dielectric material comprises (i) 40˜80 parts by weight of polyphenylene ether resin having a Mw of 1000˜7000, a Mn of 1000˜4000 and Mw/Mn=1.0˜1.8; (ii) 5˜30 parts by weight of bismaleimide resins; and (iii) 5˜30 parts by weight of polymer additives, wherein the dielectric material has Dk of 3.75˜4.0 and Df of 0.0025˜0.0045. The dielectric material is suitably used in prepregs and insulation layers of a circuit board, because it has high Tg, low thermal expansion coefficient, low moisture absorption and excellent dielectric properties such as Dk and Df.