A method of preparing a composite includes providing a porous material including a polymeric network and a polar particle; depositing an ink onto the porous material via a printing process; and delivering a lubricating fluid to the porous material to form a coating. A composite is obtained from the method, and an anti-fouling product including the composite is provided.

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more strength enhancing additives. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.

The present invention relates to a hollow fiber membrane in which the thickness L of a spherical structure layer is 60-500 ?m (inclusive), the spherical structure layer has a first surface and a second surface, the average diameter Da.sub.1 of the spherical structure in a region Sa.sub.1 10 ?m or less from the first surface and the average diameter db.sub.2 of the spherical structure in a region Sb.sub.2 10-20 ?m from the second surface satisfy the relational expression Da.sub.1>db.sub.2, and the spherical structure satisfies certain parameters.

A polymer composition can be used in selective absorbing sintering, SAS, or selective inhibition sintering, SIS, methods. The polymer of the polymer composition has open mesopores, where a cumulative pore volume distribution of the mesopores, measured according to DIN 66134, is at least 0.01 cm.sup.3/g.

A microporous polyimide-based film having excellent strength, permeability, and thermal stability is used as a separator for a lithium ion secondary battery, and a method of producing the same is provided.

The present invention aims to provide a method for producing a porous tissue regeneration substrate that allows a wide choice of solvents and easy adjustment of the bulk density and pore size of the porous substrate. The present invention also aims to provide a method for producing an artificial blood vessel and an artificial blood vessel. The present invention relates a porous, tubular artificial blood vessel containing a bioabsorbable material, the artificial blood vessel including: a skin layer having a relatively small pore size as an innermost layer; and a porous layer positioned around the skin layer and having a relatively large pore size.

Disclosed herein is a method of preparing a nanoporous organic-inorganic hybrid film. The method includes preparing an organic sol including a compound having amino groups, a compound having isocyanate groups, and a solvent; adding an inorganic oxide precursor to the organic sol to form a mixed solution; and subjecting the mixed solution to heat treatment to form an organic molecule network structure in which the organic sol is gelled, and an inorganic molecule network structure located along a surface of the organic molecule network structure.

A nanofibrous spongy microsphere includes porous walls that define an exterior of the microsphere and that extend through an interior of the microsphere. The porous walls consist of interconnected nanofibers and spaces formed between the interconnected nanofibers. A plurality of micro-scale pores are formed throughout the interior of the microsphere. Each of the micro-scale pores i) is partially defined by the porous walls, ii) has an interpore opening that opens to an adjacent micro-scale pores, and iii) has a diameter ranging from about 1 m to about 100 m. A total diameter of the microsphere ranges from about 5 m to about 1000 m.

Micro-sized particles having a polymeric structure of cells are provided. Also provided is a method of producing micro-sized particles having a polymeric structure comprising: (1) forming a homogenous solution by heating a mixture of a high molecular weight polymer and a low molecular weight material, wherein said low molecular weight material makes up at least about 50% by weight of the homogenous solution, (2) forming a dispersed solution by dispersing the homogenous solution formed in step (1) into an inert material, (3) cooling the dispersed solution to cause the high molecular weight polymer to phase separate from the low molecular weight material, (4) forming solid particles comprised of said low molecular weight material trapped inside a structure of cells of said high molecular weight polymer, and (5) removing the solid particles from the dispersed solution.

The present disclosure relates to a sheet comprising a composite material comprising a polymer and hexagonal boron nitride particles, wherein the hexagonal boron nitride particles comprise platelet-shaped hexagonal boron nitride particles, and wherein the platelet-shaped hexagonal boron nitride particles are oriented in a direction perpendicular to the direction of the plane of the sheet, and wherein the composite material comprises at least 70 percent by weight of the hexagonal boron nitride particles, based on the total weight of the composite material, and wherein the sheet has a through-plane thermal conductivity of more than 12 W/m*K. The present disclosure further relates to processes for producing said sheet.