A multilayer membrane comprising at least two co-extruded layers where the two co-extruded layer contain different polymers and one of the two co-extruded layers contains an extrusion additive. Examples of useful extrusion additives may include a nucleating agent or a pore-forming particulate. A method for making the membrane is also disclosed. Using an extrusion additive when co-extruding two different polymers avoids some of the drawbacks associated with processes involving the co-extrusion of different polymers, particularly processes where a co-extruded non-porous precursor is later stretched to form pores. For example, the drawback of lower permeability, difficulty to make lower Gurley, and splittiness may be improved.

A device for converting electrical energy from electrically charged particles, which includes a positive electrode, the positive electrode includes a composition arranged in a plate shape, the composition includes a binding agent and a filler, wherein the filler is dispersed through the binding agent, and the filler includes at least titanium dioxide and activated carbon particles. The device further includes a negative electrode, arranged in a plate shape, the negative electrode includes a metal alloy, wherein the metal alloy includes aluminium, and magnesium. The device further includes a gas permeable insulator. The positive electrode, the gas permeable insulator and the negative electrode are stacked into a laminated structure. The gas permeable insulator is arranged as an intermediate layer between the positive electrode and the negative electrode.

A base material for a printed circuit board includes: an insulating base film; and a sintered body layer of metal particles layered on one side surface of the base film; wherein an arithmetic mean roughness (Sa) of a surface of the sintered body layer that is opposite to the base film is greater than or equal to 0.005 μm and less than or equal to 0.10 μm.

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.

[Problem] To provide a thermoplastic resin film excellent in impact resistance, formability and trimmability when forming a container, productivity, and the like, and a thermoplastic resin-coated metal sheet. [Solution] A thermoplastic resin film contains 70 to 97 wt % of a thermoplastic polyester resin component and 3 to 30 wt % of a polyolefin resin component. The polyolefin resin component contains one or more polyolefin resins selected from the group consisting of nonpolar polyolefin resins and polyolefin resins having ester-containing functional groups in side chains thereof. The polyolefin resin component is dispersed, in the thermoplastic polyester resin component, in a fibrous form having an average length of 5 to 300 μm in a machine direction of the film, an average length of 0.2 to 5 μm in a thickness direction of the film, and an aspect ratio of 8 or greater.

A multilayered flexible package comprises a polymeric coating (2) that contains a dispersion of antioxidant capsules (3) having a particle size distribution comprised between 0.1 and 10 μm and a core-shell structure comprising a core (4), of an antioxidant with a reduction potential comprised between 0.1 and 0.5 V, and a polymeric shell (5) covering the core (4) at least by 70%.

A printing paper having a base layer, an intermediate layer, and a surface layer, the intermediate layer being arranged adjacent to the base layer and on the base layer, and the surface layer being arranged adjacent to the intermediate layer and on the intermediate layer, the base layer, the intermediate layer, and the surface layer each being a thermoplastic resin film having pores, an average pore size of the surface layer being from 0.2 to 5 μm, an average pore size of the intermediate layer being from 5 to 70 μm and being greater than the average pore size of the surface layer, and an average pore size of the base layer being from 70 to 200 μm and being greater than the average pore size of the intermediate layer.

A resin composition is provided including: coated particles, each including a core containing a metal oxide and a coating layer containing an aluminum hydrous oxide and provided on a surface of the core; and a resin. The metal oxide is represented by M.sub.xO.sub.y, where M represents at least one element selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, Ca, and Bi, and x and y each represent a number determined from a stoichiometric ratio according to the valence of the metal element M. The resin composition has an atomic ratio Al/(M+Al) of 0.05 or more and 0.7 or less, as determined by XPS for the particles contained in the resin composition.

An ultra-fast marine-biodegradable composite film can include at least one water-soluble layer, and at least one marine-biodegradable layer disposed in contact with the at least one water-soluble layer. The composite film can include a plurality of the water-soluble layer, and a plurality of the marine-biodegradable layer interspaced between the marine-biodegradable layers. The composite film may be used for packaging, including food packaging. Methods of preparing an ultra-fast marine-biodegradable composite film are also disclosed.

A laminated polyester film according to the present invention comprises: a core layer; and a sub-layer laminated on at least one surface of the core layer and containing a first particle and a second particle which are different components, wherein an average diameter of the first particle is 6 to 20 times of an average diameter of the second particle. Types, different properties, sizes, and contents of the first particle and the second particle are adjusted to solve the image blurring phenomenon and prevent a winding fault generated during processing and winding a final product. Therefore, workability and perfection of a final product can be increased and the defect rate can be decreased.