Abstract: An electrical steel sheet is described, which has an insulating coating on its surface. The insulating coating is free of chromium and comprises plate-like particles of inorganic compound and a metal phosphate. The plate-like particles of inorganic compound are in the form of secondary particles, which are formed by aggregating primary particles, and present in an amount of not less than 0.1 parts by mass and not greater than 20 parts by mass, with respect to 100 parts by mass of the metal phosphate. The secondary particles have an average particle diameter of no less than 0.05 ?m and no greater than 5 ?m, and have a specific surface area of 1 to 80 m2/g. The primary particles have an aspect ratio of 50 to 1000. The electrical steel sheet has excellent heat resistance, corrosion resistance, appearance, and insulating properties.

Abstract: Provided is a sheet-like prepreg that has both a low coefficient of linear thermal expansion and high flexibility and offers excellent anti-warpage performance and cracking resistance. The sheet-like prepreg according to the present invention includes a curable composition and a sheet-like porous support impregnated with the curable composition. The sheet-like porous support is made from a material having a coefficient of linear thermal expansion of 10 ppm/K or less. The sheet-like prepreg gives a cured product having a glass transition temperature of ?60° C. to 100° C. The curable composition includes one or more curable compounds (A) and at least one of a curing agent (B) and a curing catalyst (C). The curable compounds (A) include an epoxide having a weight per epoxy equivalent of 140 to 3000 g/eq in an amount of 50 weight percent or more of the totality of the curable compounds (A).

Abstract: A metal-clad laminate includes: an insulating layer; and a metal foil being in contact with at least one surface of the insulating layer. The insulating layer contains a cured product of a resin composition containing a polyphenylene ether copolymer having an intrinsic viscosity of 0.03 to 0.12 dl/g measured in methylene chloride at 25° C. and having an average of 1.5 to 3 specific groups per molecule at its molecular terminal, a thermosetting curing agent having two or more carbon-carbon unsaturated double bonds at its molecular terminal, and a thermoplastic elastomer. The metal foil includes a metal substrate, and a cobalt-containing barrier layer provided on at least a contact surface of the metal substrate, the contact surface being in contact with the insulating layer. The contact surface has a ten-point average roughness Rz of 2 ?m or less as a surface roughness.

Abstract: A protective film includes an adhesive material configured for “dry” application to a surface that is to be protected, such as the surface of an electronic device. An installation assembly that includes the protective film is configured to minimize or eliminate contact with the protective film as it is applied to the surface that is to be protected. Methods for manufacturing a protective film and an installation assembly that includes the protective film may be effected in contaminant-free conditions. Methods for applying the protective film are also disclosed, as are device (e.g., electronic devices, etc.) with at least one surface covered with a protective film.

Abstract: An interlayer film for laminated glass has enhanced sound insulating properties at 30° C., and includes first and second layers each containing a thermoplastic resin and a plasticizer. When an absolute value of a difference in cloud point using the thermoplastic resin and plasticizer in each of the first and second layers is Xa, and a content in parts by weight of the entire plasticizer in the interlayer film relative to 100 parts by weight of the entire thermoplastic resin in the interlayer film Z, the interlayer film satisfies the first constitution: “Xa?115 and Z??0.16Xa+59” and/or the second constitution: “the thermoplastic resin in the first layer is polyvinyl acetal resin, and when the acetylation degree on a mole percent basis of the polyvinyl acetal resin in the first layer is represented by Y, Y?2 and Z??0.16Xa?0.2Y+59”.

Abstract: A display film includes a transparent polymeric substrate layer having a 0.2% offset yield stress greater than 110 MPa and a transparent aliphatic cross-linked polyurethane layer having a thickness of 100 micrometers or less disposed on the transparent polymeric substrate layer. The transparent aliphatic cross-linked polyurethane layer has a glass transition temperature in a range from 11 to 27 degrees Celsius and a Tan Delta peak value in a range from 0.5 to 2.5. The display film has a haze value of 2% or less.

Abstract: Disclosed is a laminate which includes one or more soft layers and an electronic device enclosed by the one or more soft layers, wherein the one or more soft layers have a flexural modulus of 80 MPa or more and 1,000 MPa or less and a water vapor permeability at 40° C. and 90% RH of 15 [g/(m2·24 h)·100 ?m] or less.

Abstract: A resin composition including: a thermosetting resin component including a mesogen; and a phosphorus atom-containing thermoplastic polymer type frame retardant, wherein the thermoplastic polymer type frame retardant is a phosphorous atom-containing formed by polymerizing or copolymerizing one of monomers represented by general formulae (1) and (2) below, wherein, in the general formulae (1) and (2), each of R1 and R2 is any one of an alkyl group, an alkoxy group, an aryl group and an aryloxy group, R1 and R2 being different or identical, and R3 is a methyl group or a hydrogen atom.

Abstract: Photochromic polyurethane laminates and methods for the formation of same wherein the photochromic polyurethane layer of the laminate has been crosslinked with a isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active prepolymer.

Abstract: A fouling-proof structure is applicable to synthetic leather or fabric and it includes an alcohol-resistant layer; and a water-based fouling-proof layer disposed on the alcohol-resistant layer, wherein the alcohol-resistant layer is formed by curing an alcohol-resistant combination, and the alcohol-resistant combination comprises polyurethane resin, wherein the water-based fouling-proof layer is formed by curing a water-based fouling-proof combination, and the water-based fouling-proof combination comprises polyurethane resin, water, polymerized siloxanes, water-based PTFE and silicone oil.

Abstract: A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce at least one of six different materials, wherein each type of material may be configured as a thermosetting elastomer that is crosslinked with ?-hydroxyester linkages. The materials may be configured as a leather-like material, a foam material, a molded elastomer, a coating, an adhesive, and/or a rigid or semi-rigid material. Illustrative articles made from any combination of the six materials may be recycled using a mechano-chemical process to de-crosslink the thermosetting elastomer.

Abstract: The present disclosure is directed to a composition comprising (a) a vinylidene chloride/methyl acrylate interpolymer having greater than 6 wt % methyl acrylate mer units in the interpolymer, (b) greater than 6 wt % of an epoxy plasticizer; and (c) less than 4 wt % of an acrylate polymer. The composition exhibits a crystallization time greater than 25 minutes to crystallization at 35° C. Films made from the present composition show improved processability and find advantageous application as permeable barrier film for food packaging, for specialty food packaging, and for gassy cheese.

Abstract: A thermosetting resin composition and a prepreg and a metal foil-covered laminate made using same, the thermosetting resin composition comprising component (A): a solvent-soluble polyfunctional vinyl aromatic copolymer, the copolymer being a poly-functional vinyl aromatic copolymer having a stoctoal unit derived from monomers comprising divinyl aromatic compound (a) and ethyl vinyl aromatic compound (b); and component (B): a vinyl-containing organic silicone resin. The prepreg and metal foil-covered laminate made from the thermosetting resin composition have good toughness, and maintain a high glass transition temperature, a low water absorption, dielectric properties and humidity resistance, being suitable for the field of high-frequency and high-speed printed circuit boards and the processing of multilayer printed circuit boards.

Abstract: Embodiments of the disclosure relate to a primer composition for increasing the adhesion of a polarizing film laminate to a cast-polymerized lens. The primer includes an acrylic polymer, polyurethane acrylate oligomer, a solvent, a UV curing agent, and a monomer which promotes adhesion to a cast-polymerized lens.

Abstract: A metal-clad laminate includes an insulating layer including a cured product of a resin composition, and a metal foil disposed on at least one principal surface of the insulating layer. The resin composition includes a thermosetting curing agent and a polyphenylene ether copolymer. The polyphenylene ether copolymer has an intrinsic viscosity ranging from 0.03 dl/g to 0.14 dl/g, inclusive. The intrinsic viscosity is measured in methylene chloride at 25° C. And the polyphenylene ether copolymer has, at a molecular terminal, a group represented by one of formula (1) and formula (2) at an average number of more than or equal to 0.8 and less than 1.5 per one molecule. Further, the metal foil includes a barrier layer containing cobalt on a first surface of the metal foil. The first surface is in contact with the insulating layer, and has a ten-point average roughness (Rz) of less than or equal to 2.0 ?m.

Abstract: Embodiments provide a hard coat laminated film including a first hard coat, a second hard coat, and a transparent resin film layer in order from the outermost surface layer side, where the first hard coat is formed of a coating material containing no inorganic particles; the second hard coat is formed of a coating material containing inorganic particles; and the hard coat laminated film satisfies the following requirements: (i) the total light transmittance is 85% or more; and (ii) the pencil hardness of the surface of the first hard coat is 5H or higher.

Abstract: The invention relates to an adhesive dual-component composition based on polyurethane, comprising an —NCO component and an —OH component such that: the —NCO component is a composition comprising A) at least one polyurethane prepolymer comprising at least two NCO terminal groups obtained by polyaddition reaction of at least one aliphatic polyisocyanate selected from aliphatic diisocyanate monomers and mixtures of at least one aliphatic diisocyanate monomer with at least one triisocyanate based on XDI, and at least one polyester diol, and B) at least one triisocyanate based on XDI; and the —OH component is a composition comprising at least one polyester polyol. The invention relates to a method for producing a multilayer structure implementing an adhesive composition according to the invention, as well as to the use of such a structure in the field of flexible packaging.

Abstract: A resin composition includes 100 parts by weight of a vinyl-containing polyphenylene ether resin and 45 parts by weight to 75 parts by weight of an inorganic filler combination, wherein the inorganic filler combination at least includes chemically synthesized silica and silicon nitride, and a weight ratio of the chemically synthesized silica and the silicon nitride is between 1:2 and 5:2. The resin composition or an article made therefrom may achieve improvement in at least one of the following properties: dielectric constant, dissipation factor, peel strength, soldering resistance, T300 thermal resistance, laminate appearance, sedimentation property, water absorption rate, and ratio of thermal expansion.

Abstract: Provided is a coextruded multilayer film. The coextruded multilayer film has at least two layers, including a sealant layer and a second layer in contact with the sealant layer. The sealant layer contains (A) a first ethylene-based polymer having a density from 0.865 g/cc to 0.930 g/cc and a melt index from 0.5 g/10 min to 25 g/10 min; (B) an unsaturated primary fatty acid amide having a melting point of 100° C. or less; and (C) a diprotic fatty acid having a melting point greater than 100° C. and a decomposition temperature greater than 200° C. The second layer contains a second ethylene-based polymer. Also provided is a laminate containing said sealant layer.

Abstract: Articles including durable and icephobic polymeric coatings are disclosed. The polymeric coatings include a bonding layer which may contain a substantially fully cured polymeric resin providing excellent adhesion to metallic or polymer substrates. The polymeric coating further includes an outer surface layer which is smooth, hydrophobic and icephobic and, in addition to a substantially fully cured resin, contains silicone comprising additives near the exposed outer surface. The anisotropic polymeric coatings are particularly suited for strong and lightweight parts required in aerospace, automotive and sporting goods applications. A process for making the articles is disclosed as well.