FR2206178A1 - Porous plastic material formed from synthetic resin - by evapn. of two solvents only one being capable of dissolving the resin - Google Patents

Porous plastic material formed from synthetic resin - by evapn. of two solvents only one being capable of dissolving the resin

Info

Publication number
FR2206178A1
FR2206178A1 FR7240313A FR7240313A FR2206178A1 FR 2206178 A1 FR2206178 A1 FR 2206178A1 FR 7240313 A FR7240313 A FR 7240313A FR 7240313 A FR7240313 A FR 7240313A FR 2206178 A1 FR2206178 A1 FR 2206178A1
Authority
FR
France
Prior art keywords
resin
soln
solvent
dissolving
fabric
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7240313A
Other languages
French (fr)
Other versions
FR2206178B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yuasa Corp
Original Assignee
Yuasa Battery Corp
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 Yuasa Battery Corp filed Critical Yuasa Battery Corp
Priority to FR7240313A priority Critical patent/FR2206178A1/en
Publication of FR2206178A1 publication Critical patent/FR2206178A1/en
Application granted granted Critical
Publication of FR2206178B1 publication Critical patent/FR2206178B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • 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
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0013—Casting processes
    • B01D67/00135—Air gap characteristics
    • 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/20—Specific permeability or cut-off range
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/05—Elimination by evaporation or heat degradation of a liquid phase
    • C08J2201/0502—Elimination by evaporation or heat degradation of a liquid phase the liquid phase being organic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A soln. of synthetic resin (e.g. PVC, polystyrene, polyisylidenefluoride, ABS) dissolved in a first solvent (e.g. tetrahydrofurance, chloroform, dimethyl formamide, etc) is mixed with a second solvent (e.g. isopropyl alcohol, ethyl alcohol) which is miscible with the first solvent but incapable of dissolving the resin, and the soln. is pref. impregnated in a pref. synthetic fabric (e.g. woven, nonwoven, knitted). The soln. is then heated to evaporate off the volatile components to produce an extremely thin porous fabric having a uniform distribution of pores which allow passage of ions but prevent passage of particles. The fabric may be used as an air filter or as a separator wall for electrolyte in a battery. The soln. may contain colourants and thickening agents.
FR7240313A 1972-11-14 1972-11-14 Porous plastic material formed from synthetic resin - by evapn. of two solvents only one being capable of dissolving the resin Granted FR2206178A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7240313A FR2206178A1 (en) 1972-11-14 1972-11-14 Porous plastic material formed from synthetic resin - by evapn. of two solvents only one being capable of dissolving the resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7240313A FR2206178A1 (en) 1972-11-14 1972-11-14 Porous plastic material formed from synthetic resin - by evapn. of two solvents only one being capable of dissolving the resin

Publications (2)

Publication Number Publication Date
FR2206178A1 true FR2206178A1 (en) 1974-06-07
FR2206178B1 FR2206178B1 (en) 1975-11-07

Family

ID=9107130

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7240313A Granted FR2206178A1 (en) 1972-11-14 1972-11-14 Porous plastic material formed from synthetic resin - by evapn. of two solvents only one being capable of dissolving the resin

Country Status (1)

Country Link
FR (1) FR2206178A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166237A2 (en) * 1984-06-23 1986-01-02 SECON Gesellschaft für Separations- und Concentrationstechnick mbH Capillary dialyzer
EP0454670A1 (en) * 1987-05-04 1991-11-06 The Dow Chemical Company Foamable thermoplastic polymers and a method for foaming
WO2008076413A1 (en) * 2006-12-18 2008-06-26 E. I. Du Pont De Nemours And Company Microwave solvent stripping process
CN108905636A (en) * 2018-06-04 2018-11-30 苏州名列膜材料有限公司 Polytetrafluoroethylcomposite composite micro porous film and preparation method thereof and preparation system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1466907A (en) * 1965-02-03 1967-01-20 Kurashiki Rayon Co Process for manufacturing flexible and strong sheet materials and the products thus obtained
FR1514955A (en) * 1965-06-16 1968-03-01 Interchem Corp New fabric with hazy coating and process for its preparation
US3450650A (en) * 1963-06-13 1969-06-17 Yuasa Battery Co Ltd Method of making porous bodies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450650A (en) * 1963-06-13 1969-06-17 Yuasa Battery Co Ltd Method of making porous bodies
FR1466907A (en) * 1965-02-03 1967-01-20 Kurashiki Rayon Co Process for manufacturing flexible and strong sheet materials and the products thus obtained
FR1514955A (en) * 1965-06-16 1968-03-01 Interchem Corp New fabric with hazy coating and process for its preparation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166237A2 (en) * 1984-06-23 1986-01-02 SECON Gesellschaft für Separations- und Concentrationstechnick mbH Capillary dialyzer
EP0166237A3 (en) * 1984-06-23 1986-12-30 SECON Gesellschaft für Separations- und Concentrationstechnick mbH Capillary dialyzer
EP0454670A1 (en) * 1987-05-04 1991-11-06 The Dow Chemical Company Foamable thermoplastic polymers and a method for foaming
EP0454670A4 (en) * 1987-05-04 1992-04-01 The Dow Chemical Company Foamable thermoplastic polymers and a method for foaming
WO2008076413A1 (en) * 2006-12-18 2008-06-26 E. I. Du Pont De Nemours And Company Microwave solvent stripping process
CN108905636A (en) * 2018-06-04 2018-11-30 苏州名列膜材料有限公司 Polytetrafluoroethylcomposite composite micro porous film and preparation method thereof and preparation system

Also Published As

Publication number Publication date
FR2206178B1 (en) 1975-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse