WO2008111641A1 - 多孔体及びフィルター - Google Patents

多孔体及びフィルター Download PDF

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Publication number
WO2008111641A1
WO2008111641A1 PCT/JP2008/054609 JP2008054609W WO2008111641A1 WO 2008111641 A1 WO2008111641 A1 WO 2008111641A1 JP 2008054609 W JP2008054609 W JP 2008054609W WO 2008111641 A1 WO2008111641 A1 WO 2008111641A1
Authority
WO
WIPO (PCT)
Prior art keywords
porous body
filter
disclosed
polytetrafluoroethylene resin
resin
Prior art date
Application number
PCT/JP2008/054609
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Yoshimoto
Hirokazu Yukawa
Yasuhiko Sawada
Taku Yamanaka
Masamichi Sukegawa
Original Assignee
Daikin Industries, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Publication of WO2008111641A1 publication Critical patent/WO2008111641A1/ja

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/36—Polytetrafluoroethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/002—Organic membrane manufacture from melts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/26—Polyalkenes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/26—Polyalkenes
    • B01D71/261—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/26—Polyalkenes
    • B01D71/262—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/34—Polyvinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/24—Mechanical properties, e.g. strength
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene

Abstract

本発明は、極めて微細な気泡が成形体中に分布している多孔体及び上記多孔体を用いたフィルターを提供する。本発明は、ポリテトラフルオロエチレン系樹脂と上記ポリテトラフルオロエチレン系樹脂とは異なる熱可塑性樹脂とからなる多孔体であって、上記多孔体は、比重が１．８０を超え、２．１８未満であり、結晶転化率が５０％以下であることを特徴とする多孔体である。
PCT/JP2008/054609 2007-03-13 2008-03-13 多孔体及びフィルター WO2008111641A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-064002 2007-03-13
JP2007064002A JP2010132712A (ja) 2007-03-13 2007-03-13 多孔体及びフィルター

Publications (1)

Publication Number Publication Date
WO2008111641A1 true WO2008111641A1 (ja) 2008-09-18

Family

ID=39759572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/054609 WO2008111641A1 (ja) 2007-03-13 2008-03-13 多孔体及びフィルター

Country Status (3)

Country Link
US (1) US20080227880A1 (ja)
JP (1) JP2010132712A (ja)
WO (1) WO2008111641A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7795346B2 (en) * 2003-11-03 2010-09-14 Porex Corporation Sintered porous high melt-flow index materials and methods of making same
WO2008018400A1 (fr) 2006-08-09 2008-02-14 Sumitomo Electric Fine Polymer, Inc. Membrane de résine fluorée, composite de résine fluorée, composite poreux de résine fluorée, procédés pour la production de ceux-ci et élément de type membrane pour la séparation
US8628843B2 (en) * 2008-10-24 2014-01-14 Porex Corporation Composite PTFE materials and applications thereof
JP5830782B2 (ja) * 2012-01-27 2015-12-09 住友電工ファインポリマー株式会社 変性ポリテトラフルオロエチレン製微細孔径膜の製造方法、及び変性ポリテトラフルオロエチレン製多孔質樹脂膜複合体の製造方法
US20150079392A1 (en) * 2012-04-11 2015-03-19 Sumitomo Electric Fine Polymer, Inc. Fluororesin microporous membrane, method for producing the same, and filter element using the fluororesin microporous membrane
JP6057645B2 (ja) * 2012-09-25 2017-01-11 株式会社ミマキエンジニアリング インク貯留装置及びインクジェット記録装置
US20170002156A1 (en) * 2013-11-29 2017-01-05 Daikin Industries, Ltd. Biaxially-stretched porous membrane
CN105536568B (zh) * 2015-12-08 2018-02-06 南京九思高科技有限公司 一种耐有机蒸汽腐蚀的气体分离膜及其制备方法
CA3114257C (en) * 2018-10-04 2024-01-02 W. L. Gore & Associates, Inc. Unsintered expanded polytetrafluoroethylene composite membranes having dimensional stability
JP2024031541A (ja) * 2022-08-26 2024-03-07 古河電気工業株式会社 フッ素樹脂組成物、及びこれを用いた微細発泡フッ素樹脂フィルム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6166730A (ja) * 1984-09-07 1986-04-05 Chuko Kasei Kogyo Kk ポリテトラフルオロエチレン樹脂多孔質体の製造方法
JPH09302121A (ja) * 1996-05-17 1997-11-25 Nitto Denko Corp ポリテトラフルオロエチレン多孔質膜の製造方法
JPH1030031A (ja) * 1996-05-17 1998-02-03 Nitto Denko Corp ポリテトラフルオロエチレン多孔質膜およびその製造方法、シート状ポリテトラフルオロエチレン成形体、並びに、エアーフィルター用濾材
JPH10287759A (ja) * 1997-04-16 1998-10-27 Nitto Denko Corp ポリテトラフルオロエチレン多孔質膜及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6166730A (ja) * 1984-09-07 1986-04-05 Chuko Kasei Kogyo Kk ポリテトラフルオロエチレン樹脂多孔質体の製造方法
JPH09302121A (ja) * 1996-05-17 1997-11-25 Nitto Denko Corp ポリテトラフルオロエチレン多孔質膜の製造方法
JPH1030031A (ja) * 1996-05-17 1998-02-03 Nitto Denko Corp ポリテトラフルオロエチレン多孔質膜およびその製造方法、シート状ポリテトラフルオロエチレン成形体、並びに、エアーフィルター用濾材
JPH10287759A (ja) * 1997-04-16 1998-10-27 Nitto Denko Corp ポリテトラフルオロエチレン多孔質膜及びその製造方法

Also Published As

Publication number Publication date
JP2010132712A (ja) 2010-06-17
US20080227880A1 (en) 2008-09-18

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