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1. (WO2017038224) POROUS HOLLOW FIBER MEMBRANE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/038224 International Application No.: PCT/JP2016/068878
Publication Date: 09.03.2017 International Filing Date: 24.06.2016
IPC:
B01D 71/32 (2006.01) ,B01D 69/02 (2006.01) ,B01D 69/08 (2006.01)
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
30
Polyalkenyl halides
32
containing fluorine atoms
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
02
characterised by their properties
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
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:
安田 貴亮 YASUDA Takaaki; JP
花川 正行 HANAKAWA Masayuki; JP
岩井 健太 IWAI Kenta; JP
石崎 利之 ISHIZAKI Toshiyuki; JP
北出 有 KITADE Tamotsu; JP
木村 将弘 KIMURA Masahiro; 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:
2015-17015231.08.2015JP
Title (EN) POROUS HOLLOW FIBER MEMBRANE
(FR) MEMBRANE À FIBRES CREUSES POREUSES
(JA) 多孔質中空糸膜
Abstract:
(EN) The present invention provides a porous hollow fiber membrane that has both high strength and high pure water permeability, and that exhibits excellent thermal deformation resistance. The present invention is related to a porous hollow fiber membrane containing a fluororesin-based polymer, and a manufacturing method of the membrane comprises a drawing step and a relaxing step. The porous hollow fiber membrane is characterized in that: the molecular chain of the polymer is oriented in the longitudinal direction of the hollow fiber membrane; and at the same time internal distortion of oriented non-crystalline chains, which is disadvantageous in terms of entropy, is alleviated.
(FR) La présente invention concerne une membrane à fibres creuses poreuses qui possède à la fois une résistance élevée et une perméabilité élevée à l'eau pure, et qui présente une excellente résistance à la déformation thermique. La présente invention se rapporte à une membrane à fibres creuses poreuses contenant un polymère à base de résine fluorée, et à un procédé de fabrication de la membrane comprenant une étape d'étirage et une étape de relaxation. La membrane à fibres creuses poreuses est caractérisée en ce que : la chaîne moléculaire du polymère est orientée dans la direction longitudinale de la membrane en fibres creuses; et en même temps la déformation interne des chaînes non cristallines orientées, qui est désavantageuse en termes d'entropie, est atténuée.
(JA) 本発明は、高強度と高純水透過性能を両立し、かつ耐熱変形性に優れた多孔質中空糸膜を提供する。本発明は、フッ素樹脂系高分子を含有する多孔質中空糸膜について、製造方法に延伸工程と弛緩工程を備え、該高分子の分子鎖が該中空糸膜の長手方向に配向しつつ、エントロピー的に不利な配向非晶鎖の内部歪みが緩和したことを特徴とする多孔質中空糸膜に関する。
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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, 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, KN, KP, KR, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)