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1. (WO2017131209) SEPARATION MEMBRANE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/131209 International Application No.: PCT/JP2017/003060
Publication Date: 03.08.2017 International Filing Date: 27.01.2017
IPC:
B01D 69/00 (2006.01) ,B01D 69/08 (2006.01) ,B01D 69/10 (2006.01) ,B01D 69/12 (2006.01) ,B01D 71/12 (2006.01) ,B01D 71/48 (2006.01) ,B01D 71/56 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
08
Hollow fibre membranes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
10
Supported membranes; Membrane supports
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
12
Composite membranes; Ultra-thin membranes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
08
Polysaccharides
12
Cellulose derivatives
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
48
Polyesters
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
56
Polyamides, e.g. polyester-amides
Applicants:
東レ株式会社 TORAY INDUSTRIES, INC. [JP/JP]; 東京都中央区日本橋室町2丁目1番1号 1-1, Nihonbashi-Muromachi 2-chome, Chuo-ku, Tokyo 1038666, JP
Inventors:
山村 剛平 YAMAMURA Gohei; JP
高田 皓一 TAKADA Koichi; JP
富岡 洋樹 TOMIOKA Hiroki; JP
Agent:
特許業務法人栄光特許事務所 EIKOH PATENT FIRM, P.C.; 東京都港区西新橋一丁目7番13号 虎ノ門イーストビルディング10階 Toranomon East Bldg. 10F, 7-13, Nishi-Shimbashi 1-chome, Minato-ku, Tokyo 1050003, JP
Priority Data:
2016-01642329.01.2016JP
Title (EN) SEPARATION MEMBRANE
(FR) MEMBRANE DE SÉPARATION
(JA) 分離膜
Abstract:
(EN) The problem addressed by the present invention is to provide a separation membrane with superior permeation performance and separation performance and having few occurrences of defects. The present invention relates to a separation membrane wherein: the separation membrane has a layer (I) with a thickness of 0.5 - 100 µm; letting, in a cross-section in the direction of thickness of the layer (I), region a be a region with a depth of 50 - 150 nm from a surface (surface A), region b a region with a depth of 50 - 150 nm from the other surface (surface B), and region c a region with a thickness of 100 nm where the depth from both surfaces is the same, the average pore diameter Pa for region a and the average pore diameter Pb for region b are both 0.3 - 3.0 nm and the average pore diameter Pc for region c is 3.0 nm or less; and the percentage of open area Ha for region a, the percentage of open area Hb for region b, and the percentage of open area Hc for region c satisfy the following equations. 2Hc < Ha 2Hc < Hb
(FR) L’invention a pour objet de fournir une membrane de séparation présentant d’excellentes performance de perméation et de séparation, et dans laquelle des défauts sont peu susceptibles d’apparaître. Plus précisément, l’invention concerne une membrane de séparation qui possède une couche (I) d’épaisseur comprise entre 0,5 et 100 μm, et qui est telle que lorsqu’une région de profondeur comprise entre 50 et 150nm à partir d’une surface (face A) dans un plan transversal dans la direction de l’épaisseur de la couche (I), consiste en une région a, une région de profondeur comprise entre 50 et 150nm à partir d’une autre surface (face B), consiste en une région b, et une région de 100nm d’épaisseur et de même profondeur à partir des deux faces, consiste en une région c, alors le diamètre moyen de pores Pa dans la région a et le diamètre moyen de pores Pb dans la région b sont tous deux supérieurs ou égaux à 0,3nm et inférieurs ou égaux à 3,0nm, le diamètre moyen de pores Pc dans la région c est inférieur ou égal à 3,0nm, et la porosité Ha de la région a, la porosité Hb de la région b et la porosité Hc de la région c satisfont les formules ci-dessous. 2Hc<Ha 2Hc<Hb
(JA) 本発明が解決しようとする課題は、透過性能と分離性能に優れ、かつ欠陥の発生が少ない分離膜を提供することである。本発明は、厚みが0.5~100μmの層(I)を有し、層(I)の厚み方向の断面において、表面(A面)から深さ50~150nmの領域を領域a、もう一方の表面(B面)から深さ50~150nmの領域を領域b、両表面からの深さが同じとなる厚み100nmの領域を領域cとしたときに、領域aの平均孔径Pa、領域bの平均孔径Pbがいずれも0.3nm以上3.0nm以下、領域cの平均孔径Pcが3.0nm以下であり、領域aの開孔率Ha、領域bの開孔率Hb、領域cの開孔率Hcが以下の式を満たす分離膜に関する。 2Hc<Ha 2Hc<Hb
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
IN201847028242KR1020180104630CN108602024EP3409346JPWO2017131209US20190046931