CH399423A - Process for the production of water-soluble membrane filters - Google Patents

Process for the production of water-soluble membrane filters

Info

Publication number
CH399423A
CH399423A CH257560A CH257560A CH399423A CH 399423 A CH399423 A CH 399423A CH 257560 A CH257560 A CH 257560A CH 257560 A CH257560 A CH 257560A CH 399423 A CH399423 A CH 399423A
Authority
CH
Switzerland
Prior art keywords
production
water
membrane filters
soluble membrane
soluble
Prior art date
Application number
CH257560A
Other languages
German (de)
Inventor
Maier Karl-Heinrich Ing Dr
Voggel Knut
Original Assignee
Membranfilter Ges Gmbh
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 Membranfilter Ges Gmbh filed Critical Membranfilter Ges Gmbh
Publication of CH399423A publication Critical patent/CH399423A/en

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
    • B01D67/00091—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching by evaporation
    • 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
    • B01D67/0011—Casting solutions therefor
    • B01D67/00111—Polymer pretreatment in the casting solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B01D2323/081—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/15—Use of additives
    • B01D2323/18—Pore-control agents or pore formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/0282—Dynamic pores-stimuli responsive membranes, e.g. thermoresponsive or pH-responsive
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Materials For Medical Uses (AREA)
CH257560A 1959-05-21 1960-03-07 Process for the production of water-soluble membrane filters CH399423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM41588A DE1173640B (en) 1959-05-21 1959-05-21 Process for the production of membrane filters

Publications (1)

Publication Number Publication Date
CH399423A true CH399423A (en) 1965-09-30

Family

ID=7304070

Family Applications (1)

Application Number Title Priority Date Filing Date
CH257560A CH399423A (en) 1959-05-21 1960-03-07 Process for the production of water-soluble membrane filters

Country Status (3)

Country Link
CH (1) CH399423A (en)
DE (1) DE1173640B (en)
GB (1) GB920815A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615954C3 (en) * 1975-04-22 1981-04-23 Kuraray Co., Ltd., Kurashiki, Okayama Polyvinyl alcohol based membrane
DE19750215C1 (en) * 1997-11-13 1999-02-04 Sartorius Gmbh Gelatin membrane filter increasing number of viable micro-organisms collected from gas
DE19814715A1 (en) 1998-04-02 1999-10-07 Sartorius Gmbh Gelatin membrane filters, process for their preparation and their use
US6406906B1 (en) * 2000-05-10 2002-06-18 Sartorius Ag Gelatin membrane filters and method for producing the same
CN101422669B (en) * 2008-11-26 2012-02-08 南昌大学 Preparation method of hydrophilicity macromolecule micropore filter material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236061A (en) * 1937-05-27 1941-03-25 Du Pont Method of making films, threads, and the like

Also Published As

Publication number Publication date
GB920815A (en) 1963-03-13
DE1173640B (en) 1964-07-09

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