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1. WO2020138065 - POROUS FILM, COMPOSITE FILM, AND METHOD FOR PRODUCING POROUS FILM

Publication Number WO/2020/138065
Publication Date 02.07.2020
International Application No. PCT/JP2019/050576
International Filing Date 24.12.2019
IPC
B01D 69/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
B01D 69/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
10Supported membranes; Membrane supports
B01D 69/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
12Composite membranes; Ultra-thin membranes
B01D 71/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
30Polyalkenyl halides
32containing fluorine atoms
34Polyvinylidene fluoride
C08J 9/26 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
26by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
CPC
B01D 69/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
B01D 69/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
10Supported membranes; Membrane supports
B01D 69/12
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
12Composite membranes; Ultra-thin membranes
B01D 71/34
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
30Polyalkenyl halides
32containing fluorine atoms
34Polyvinylidene fluoride
C08J 9/26
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
26by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
Applicants
  • 東レ株式会社 TORAY INDUSTRIES, INC. [JP]/[JP]
Inventors
  • 志村 俊 SHIMURA Shun
  • 花川 正行 HANAKAWA Masayuki
  • 岩井 健太 IWAI Kenta
  • 安田 貴亮 YASUDA Takaaki
Agents
  • 特許業務法人栄光特許事務所 EIKOH PATENT FIRM, P.C.
Priority Data
2018-24277126.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POROUS FILM, COMPOSITE FILM, AND METHOD FOR PRODUCING POROUS FILM
(FR) FILM POREUX, FILM COMPOSITE, ET PROCÉDÉ DE PRODUCTION DE FILM POREUX
(JA) 多孔質膜、複合膜及び多孔質膜の製造方法
Abstract
(EN)
The present invention relates to a porous film which contains a polymer containing, as the main component thereof, a polyvinylidene fluoride-type resin, wherein the polyvinylidene fluoride-type resin comprises a branched polyvinylidene fluoride-type resin, and a value a and a value b for the polymer, each of which is determined by approximating in accordance with formula 1 from a radius of gyration 2>1/2 of the polymer determined by GPC-MALS and an absolute molecular weight Mw of the polymer, are 0.32 to 0.41 and 0.18 to 0.42, respectively. 2>1/2= bMwa (formula 1)
(FR)
La présente invention concerne un film poreux qui contient un polymère contenant, en tant que composant principal de celui-ci, une résine de type polyfluorure de vinylidène, la résine de type fluorure de polyvinylidène comprenant une résine de type fluorure de polyvinylidène ramifié, et une valeur a et une valeur b pour le polymère, dont chacun est déterminé par approximation selon la formule 1 à partir d'un rayon de giration 2>1/2 du polymère déterminé par GPC-MALS et un poids moléculaire absolu Mw du polymère, sont de 0,32 à 0,41 et de 0,18 à 0,42, respectivement. 2>1/2= bMw a (formula 1)
(JA)
本発明は、ポリフッ化ビニリデン系樹脂を主成分とするポリマーを含み、前記ポリフッ化ビニリデン系樹脂として、分岐ポリフッ化ビニリデン系樹脂を含み、GPC-MALSで測定した回転半径〈S1/2とポリマーの絶対分子量Mから、下記式1で近似して決定される、前記ポリマーについてのaの値が、0.32~0.41であり、かつ、bの値が、0.18~0.42である、多孔質膜に関する。 〈S1/2=bM・・・(式1)
Also published as
JP2020500226
Latest bibliographic data on file with the International Bureau