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AssigneesNanotheta Co, Ltd., Shinji TAKEOKA, Toray Industries, Inc.
InventorsShinji Takeoka, Akihiro Saito, Hong Zhang, Natsuki Takamizawa
Estimating the term…
A porous ultra-thin polymer film has a film thickness of 10 nm-1000 nm. A method of producing the porous ultra-thin polymer film includes dissolving two types of mutually-immiscible polymers in a first solvent in an arbitrary proportion to obtain a solution; applying the solution onto a substrate and then removing the first solvent from the solution applied onto the substrate to obtain a phase-separated ultra-thin polymer film that has been phase-separated into a sea-island structure; and immersing the ultra-thin polymer film in a second solvent which is a good solvent for the polymer of the island parts but a poor solvent for a polymer other than the island parts to remove the island parts, thereby obtaining a porous ultra-thin polymer film.
A complex of a substrate, a water-soluble sacrificial film and a porous ultra-thin polymer film, comprising the water-soluble sacrificial film on the substrate, and the porous ultra-thin polymer film having a film thickness of 10 nm-1000 nm thereon, wherein the porous ultra-thin polymer film comprises non-penetrating pores.
A complex of a substrate, a porous ultra-thin polymer film and a water-soluble support membrane, comprising, in order, the porous ultra-thin polymer film having a film thickness of 10 nm-1000 nm on the substrate, and further the water-soluble support membrane on the porous ultra-thin polymer film, the water-soluble support membrane being selected from the group consisting of a polyvinyl alcohol film, a polyacrylate film, a polymethacrylate film, a sodium alginate film, a polyethylene oxide film, a polyacrylic amide film, a polyvinylpyrrolidone film, a starch film, a carboxymethyl cellulose film, a collagen film, a pullulan film, an agar film, and a silicon film.
A complex of a porous ultra-thin polymer film and a water-soluble support membrane, comprising the water-soluble support membrane on the porous ultra-thin polymer film having a film thickness of 10 nm-1000 nm, wherein the porous ultra-thin polymer film comprises non-penetrating pores.
Dependencies are inferred from the claim text.