This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby.

This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby.

The electret-treated sheet includes: a core layer (A) which is a porous film containing at least a thermoplastic resin; a surface layer (X) disposed on one side of the core layer (A); and a back surface layer (Y) disposed on the other side of the core layer (A), the surface layer (X) and the back surface layer (Y) each having a charged outermost surface, wherein the electret-treated sheet has a water vapor permeability coefficient of 0.1 to 2.5 g.Math.mm/m.sup.2.Math.24 hr; the core layer (A) has a pore aspect ratio of 5 to 50 and an average pore height of 2.5 to 15 μm; the surface layer (X) and the back surface layer (Y) each have a thickness of 5 to 200 μm; and the surface layer (X) includes a heat seal layer (B) including the outermost surface, wherein the heat seal layer (B) has a melting point of 50 to 140° C.

Provided is a white laminated polyester film that has blocking resistance when water adheres and has excellent adhesion to UV ink. A white laminated polyester film comprising a polyester resin layer and a coating layer on at least one surface of the polyester film substrate, the coating layer being formed by curing a composition containing a urethane resin with a polycarbonate structure and a branched structure, a crosslinking agent, and a polyester resin. The crosslinking agent is preferably a compound containing three or more blocked isocyanate groups.

According to at least one embodiment, there is provided a hard coat laminated film, including, from a surface layer side, a second hard coat, a first hard coat, and a transparent resin film layer, where the first hard coat and the transparent resin film layer are laminated directly, where the first hard coat is formed of a coating material including: (A) 100 parts by mass of a polyfunctional (meth)acrylate; and (B) 1 to 100 parts by mass of an N-substituted (meth)acrylamide compound, where the second hard coat is formed of a coating material containing no inorganic particles, and where the transparent resin film is a transparent multilayer film or a transparent monolayer film made of a poly(meth)acrylimide resin, where the transparent multilayer film includes a surface layer made of a poly(meth)acrylimide resin, the first hard coat being formed on the surface layer.

The embodiments relate to a polyamide-imide film excellent in optical properties and mechanical properties, to a process for preparing the same, and to a cover window and a display device comprising the same. There are provided a polyamide-imide film, which comprises a polyamide-imide polymer and has a reduced modulus of a top surface measured by the nanoindentation method according to the ISO 14577-2 standard of 5.6 GPa or more and a haze of 1% or less, a process for preparing the same, and a cover window and a display device comprising the same.

The present disclosure discloses a multi-layer co-extrusion stone plastic floor. The multi-layer co-extrusion stone plastic floor includes at least one co-extrusion stone layer, the co-extrusion stone plastic layer including a first stable layer, a stone plastic rigid layer, and a second stable layer successively. A size change rate of the first stable layer and the second stable layer is within a range of 0 to 0.12% within a temperature range of −15° C. to 80° C. At least one of the first stable layer, the stone plastic rigid layer, and the second stable layer includes composite particles of acrylate copolymer (ACR)/nano SiO.sub.2. The multi-layer co-extrusion stone plastic floor has improved strength, improved thermal stability and reduce thermal deformation by adding stable layers above/below the plastic rigid layer and adding the composite particles of ACR/nano SiO.sub.2.

Provided is a thermal conducting sheet, including: a binder resin; insulating-coated carbon fibers; and a thermal conducting filler other than the insulating-coated carbon fibers, wherein the insulating-coated carbon fibers include carbon fibers and a coating film over at least a part of a surface of the carbon fibers, the coating film being formed of a cured product of a polymerizable material.

Provided is a thermal conducting sheet, including: a binder resin; insulating-coated carbon fibers; and a thermal conducting filler other than the insulating-coated carbon fibers, wherein the insulating-coated carbon fibers include carbon fibers and a coating film over at least a part of a surface of the carbon fibers, the coating film being formed of a cured product of a polymerizable material.

Proposed is a method of manufacturing a dental composite blank. The method of manufacturing the dental composite blank includes (a) pressurizing a laminate for a composite blank having multiple layers having different colors at a first pressure (P.sub.1), (b) pressurizing the laminate for a composite blank, pressurized at the first pressure, at a second pressure (P.sub.2), and (c) manufacturing a composite blank by curing the pressurized laminate for a composite blank, in which steps (a) and (b) are each independently performed once or multiple times, and the first pressure (P.sub.1) is less than or greater than the second pressure (P.sub.2), ultimately making it possible to manufacture a dental composite blank that is similar to a natural tooth and thus exhibits a superior aesthetic appearance and high interlayer bonding strength.