NZ202805A - Asymmetrical macroporous membranes - Google Patents

Asymmetrical macroporous membranes

Info

Publication number
NZ202805A
NZ202805A NZ202805A NZ20280582A NZ202805A NZ 202805 A NZ202805 A NZ 202805A NZ 202805 A NZ202805 A NZ 202805A NZ 20280582 A NZ20280582 A NZ 20280582A NZ 202805 A NZ202805 A NZ 202805A
Authority
NZ
New Zealand
Prior art keywords
weight
membrane
polyvinylpyrrolidone
dissolved
relative
Prior art date
Application number
NZ202805A
Other languages
English (en)
Inventor
A Walch
J Wildhardt
D Beissel
Original Assignee
Hoechst Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6148965&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NZ202805(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of NZ202805A publication Critical patent/NZ202805A/en

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
    • B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
    • B01D71/441—Polyvinylpyrrolidone
    • 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • 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
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L39/00—Compositions 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 single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers
    • C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C08L39/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
    • 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
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/34—Molecular weight or degree of polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
NZ202805A 1981-12-17 1982-12-15 Asymmetrical macroporous membranes NZ202805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813149976 DE3149976A1 (de) 1981-12-17 1981-12-17 Makroporoese asymmetrische hydrophile membran aus synthetischem polymerisat

Publications (1)

Publication Number Publication Date
NZ202805A true NZ202805A (en) 1985-05-31

Family

ID=6148965

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ202805A NZ202805A (en) 1981-12-17 1982-12-15 Asymmetrical macroporous membranes

Country Status (11)

Country Link
US (2) US4720343A (en:Method)
EP (1) EP0082433B2 (en:Method)
JP (1) JPS58104940A (en:Method)
AU (1) AU553450B2 (en:Method)
CA (1) CA1225806A (en:Method)
DE (2) DE3149976A1 (en:Method)
DK (1) DK155422C (en:Method)
ES (1) ES518248A0 (en:Method)
FI (1) FI72885C (en:Method)
NO (1) NO157049C (en:Method)
NZ (1) NZ202805A (en:Method)

Families Citing this family (107)

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Also Published As

Publication number Publication date
DE3269737D1 (en) 1986-04-10
EP0082433B2 (de) 1996-01-24
FI824308L (fi) 1983-06-18
ES8402509A1 (es) 1984-02-16
FI72885B (fi) 1987-04-30
CA1225806A (en) 1987-08-25
NO824236L (no) 1983-06-20
FI824308A0 (fi) 1982-12-15
JPS58104940A (ja) 1983-06-22
US4720343A (en) 1988-01-19
DK557882A (da) 1983-06-18
AU553450B2 (en) 1986-07-17
DK155422C (da) 1989-08-28
EP0082433B1 (de) 1986-03-05
JPH0218695B2 (en:Method) 1990-04-26
NO157049B (no) 1987-10-05
US5009824A (en) 1991-04-23
FI72885C (fi) 1987-08-10
DE3149976A1 (de) 1983-06-30
ES518248A0 (es) 1984-02-16
EP0082433A3 (en) 1983-08-31
AU9147482A (en) 1983-06-23
DK155422B (da) 1989-04-10
EP0082433A2 (de) 1983-06-29
NO157049C (no) 1988-01-13

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