Compositions suitable for forming an optical coating are provided, wherein the compositions include core-shell nanoparticles having (a) a core material which includes a polymer; and (b) a shell material which includes a metal oxide.

A prefabricated tile-type coating, whose manufacture is based on the development of a polymeric composite including mainly recycled synthetic rubber obtained from the grinding of scrap automotive waste tires, virgin rubber, or a combination of both, using as a binder a novel cross-linkable acrylic resin with the ability to be processed by pultrusion. The upper layer of the tile is made of a resin with thermochromic effect that integrates an encapsulated pigment of thermochromic material with a transition temperature in the range of 20-35 C. which changes color from white under high-temperature conditions, i.e. C. or greater than dark in conditions of low temperature, that is, 20 C. or less. The tile of elastomeric character obtained has notable competitive advantages compared to other technologies in terms of thermal resistance, solar reflectance, and resistance to the impact caused by hail or other meteorological phenomena.

An insulating coating film obtained by mixing 0.5 parts by mass to 10 parts by mass of a copolymer of a fluoroolefin and an ethylenically unsaturated compound when converted into a solid content with 100 parts by mass in solid content of a mixture composed of a metal phosphate and a specific organic resin or a mixture composed of colloidal silica and a specific organic resin is designed to be provided on a surface of an electrical steel sheet, and in this manner, it is possible to obtain an electrical steel sheet having good corrosion resistance under a wet environment and having good properties related to the insulating coating film such as a space factor and adhesiveness.

An acrylic film having few fish eyes and a method for producing latex of an acrylic rubber-containing polymer having low amounts of coarse particles, excellent filtering properties, and low filter clogging frequency during a filtration step for removing foreign substances. An acrylic film containing an acrylic rubber-containing polymer and a thickness of 30 to 300 m, wherein the number of fish eyes that are 0.001 mm.sup.2 or greater in size is 130/m.sup.2 or fewer when a section having a light transmission rate of 75% or less for light having a wavelength of 400 to 1100 nm was detected as a fish eye A laminate film formed by laminating the acrylic film and a layer of at least one resin selected from thermoplastic resin, thermosetting resin, and photo curable resin. A laminated injection molded article formed by laminating the acrylic film on an injection molded article.

Disclosed are: a polyalkylene terephthalate resin composition comprising (A) a polyalkylene terephthalate resin and (B) an acrylic-based core-shell polymer which has an average particle size of 2 m or greater and in which an amount of the core layer component is more than 80% by mass but less than 100% by mass relative to a total mass of the core layer component and a shell layer component; and a molded article which is obtained by molding the polyalkylene terephthalate resin composition.

An adhesive film according to the present invention includes a resin composition layer (layer A) for an interlayer insulating layer, a thermosetting resin composition layer (layer B), and a support film (layer C), and the layer C, the layer A, and the layer B are sequentially arranged in this order. The layer A is a resin composition which contains a thermosetting resin (a1) and an inorganic filler (b1) having a specific surface area of 20 m.sup.2/g or more, and the mass ratio of the thermosetting resin (a1) to the inorganic filler (b1) is within the range from 30:1 to 2:1. The layer B contains a thermosetting resin composition which is in a solid state at a temperature lower than 40 C. but melts at a temperature of 40 C. or higher but lower than 140 C. Consequently, the adhesive film according to the present invention can solve problems in a laser process and a desmear removal process following the laser process and can form a conductor layer which has a high adhesion strength even on an interlayer insulating layer having a smooth surface-roughened state.

A thermally expandable sheet includes: a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material and a first binder, the first thermally expansive layer having a first ratio of the first thermally expandable material with respect to the first binder; and a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material and a second binder, the second thermally expansive layer having a second ratio of the second thermally expandable material with respect to the second binder, wherein the second ratio is lower than the first ratio.

Adhesive compositions that are optically transparent include a (meth)acrylate-based copolymer having a refractive index of at least 1.48, and particles of a thermoplastic polymer. At least some of the particles have an average particle size that is larger than the wavelength of visible light. The adhesive compositions are prepared by hot melt processing packaged adhesive compositions.

A thermally expandable sheet includes: a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material and a first binder, the first thermally expansive layer having a first ratio of the first thermally expandable material with respect to the first binder; and a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material and a second binder, the second thermally expansive layer having a second ratio of the second thermally expandable material with respect to the second binder, wherein the first ratio is lower than the second ratio.

A fiber reinforced powder paint provides improved flexural fatigue resistance for composites substrates. Fiber loading in the powder is greater than 40%. Aramid fiber loading in an epoxy based powder paint is exemplified. A composite bow limb coated with the powder paint survives a remarkably greater number of bending cycles before failure when coated with the powder paint.