[특허]Porous membrane and method of making the same

Porous membrane and method of making the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-035/04 B01J-020/282 B01D-039/20 C01B-039/04
출원번호	US-0291935 (2011-11-08)
등록번호	US-8511483 (2013-08-20)
발명자 / 주소	Lee, Kwangyeol
출원인 / 주소	Korea University Research and Business Foundation
대리인 / 주소	Knobbe Martens Olson & Bear LLP
인용정보	피인용 횟수 : 0 인용 특허 : 20

초록 ▼

A method of making a porous membrane is disclosed. One such method optionally includes: forming a plurality of pillars in an array form over a substrate; and forming a layer with a mixture of a porous material precursor and a surfactant over the substrate. The method optionally includes removing the pillars to leave cavities in the layer; filling the cavities in the layer with a cavity filler; and removing the surfactant from the layer. The porous membrane can be used as, for example, a sieve for separating molecules from a chemical reaction.

대표청구항 ▼

1. An apparatus comprising: a first layer having a thickness between about 100 nm to about 1 μm, the first layer including a plurality of first pores having a first diameter between 2 nm and about 50 nm, wherein the plurality of first pores permit fluid and/or molecules having a diameter smaller than the first diameter to pass through the first layer, wherein the first layer includes a first portion that includes the first pores, and wherein the first portion is formed of Mobile Crystalline Material (MCM)-41 or Santa Barbara Amorphous-15 SBA-15), and wherein the first layer further includes a plurality of second portions forming pillars penetrating the first layer, the second portions being non-porous; anda second layer attached to the first layer, the second layer including one or more second pores having a second diameter greater than the first diameter, wherein the one or more second pores are aligned to permit the fluid and/or molecules to pass from the first layer through the second layer. 2. The apparatus of claim 1, wherein the first layer includes a surface, and wherein the plurality of first pores extend in a direction substantially vertical to the surface. 3. The apparatus of claim 1, wherein the second diameter is equal to or greater than about 50 nm. 4. The apparatus of claim 1, wherein the pillars are arranged in a geometric pattern. 5. The apparatus of claim 4, wherein the geometric pattern comprises two or more rows of pillars. 6. The apparatus of claim 4, wherein the geometric pattern comprises two or more columns of pillars. 7. The apparatus of claim 4, wherein the geometric pattern comprises two or more diagonal lines of pillars. 8. The apparatus of claim 1, wherein the first pores have an inner surface, and wherein the apparatus further comprises molecules attached to the inner surface of the first pores. 9. The apparatus of claim 8, wherein the molecules comprise one or more selected from the group consisting of a polynucleotide, a polypeptide, a branched or unbranched C1-C30 alkyl group, and a compound comprising an alkoxide group. 10. The apparatus of claim 9, wherein the polynucleotide comprises a hairpin DNA. 11. The apparatus of claim 1, further comprising a conduit configured to flow a fluid through the first and second layers. 12. The apparatus of claim 1, wherein the first layer comprises calcine. 13. The apparatus of claim 12, wherein the second layer comprises calcine. 14. A method of separating molecules, the method comprising: flowing a fluid containing molecules of different sizes through the first and second layers of the apparatus of claim 1. 15. The method of claim 14, wherein the molecules of different sizes are produced by a coupling reaction.

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Pinnavaia Thomas J. ; Bagshaw Stephen A.,FRX, Porous inorganic oxide materials prepared by non-ionic surfactant templating route.
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Lee, Kwangyeol, Porous membrane and method of making the same.
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Takai, Osamu; Sugimura, Hiroyuki; Hozumi, Atsushi, Process for producing ceramic porous bodies having hollow structures at low temperatures.
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Pelrine Bruce P. (Trenton NJ) Schmitt Kirk D. (Pennington NJ) Vartuli James C. (West Chester PA), Production of olefin oligomer lubricants.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Porous membrane and method of making the same 원문보기

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