GB1425318A - Microporous polyester membranes - Google Patents

Microporous polyester membranes

Info

Publication number
GB1425318A
GB1425318A GB5844072A GB5844072A GB1425318A GB 1425318 A GB1425318 A GB 1425318A GB 5844072 A GB5844072 A GB 5844072A GB 5844072 A GB5844072 A GB 5844072A GB 1425318 A GB1425318 A GB 1425318A
Authority
GB
United Kingdom
Prior art keywords
hexafluoroisopropanol
polyvinylpyrrolidone
dec
solution
cast onto
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.)
Expired
Application number
GB5844072A
Other languages
English (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.)
Chemical Systems Inc
Chem Systems Inc
Original Assignee
Chemical Systems Inc
Chem Systems Inc
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 Chemical Systems Inc, Chem Systems Inc filed Critical Chemical Systems Inc
Publication of GB1425318A publication Critical patent/GB1425318A/en
Expired legal-status Critical Current

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
    • B01D71/48—Polyesters
    • 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
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)
GB5844072A 1971-12-16 1972-12-18 Microporous polyester membranes Expired GB1425318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20892871A 1971-12-16 1971-12-16

Publications (1)

Publication Number Publication Date
GB1425318A true GB1425318A (en) 1976-02-18

Family

ID=22776626

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5844072A Expired GB1425318A (en) 1971-12-16 1972-12-18 Microporous polyester membranes
GB3200775A Expired GB1425319A (en) 1971-12-16 1972-12-18 Casting solutions

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3200775A Expired GB1425319A (en) 1971-12-16 1972-12-18 Casting solutions

Country Status (4)

Country Link
CA (1) CA1025590A (cg-RX-API-DMAC7.html)
DE (1) DE2261895B2 (cg-RX-API-DMAC7.html)
FR (1) FR2165957B1 (cg-RX-API-DMAC7.html)
GB (2) GB1425318A (cg-RX-API-DMAC7.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818596A (en) * 1986-08-22 1989-04-04 Scimat Limited Waterproof article and method for making a waterproof article
EP2060315A3 (en) * 2007-11-15 2009-08-12 DSMIP Assets B.V. High performance membrane
CN109836735A (zh) * 2011-06-23 2019-06-04 索尔维特殊聚合物意大利有限公司 用于制造多孔膜的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0611320B2 (ja) * 1984-10-02 1994-02-16 旭メデイカル株式会社 血液透析用中空糸膜

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216882A (en) * 1960-12-05 1965-11-09 Nalco Chemical Co Porous plastic film
US3423491A (en) * 1964-09-02 1969-01-21 Dow Chemical Co Permselective hollow fibers and method of making
CH446714A (fr) * 1964-09-23 1967-11-15 Rhone Poulenc Sa Procédé d'obtention d'une matière microporeuse
DE1771082B1 (de) * 1968-03-30 1970-10-08 Varta Gmbh Separationsschicht fuer galvanische Primaerelemente mit waessrigem Elektrolyten aus einer Mischung zumindest zweier Kunststoffe,von denen der eine als Porenbildner herausloesbar ist

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818596A (en) * 1986-08-22 1989-04-04 Scimat Limited Waterproof article and method for making a waterproof article
US5006187A (en) * 1986-08-22 1991-04-09 Scimat Limited Plugged microporous film
EP2060315A3 (en) * 2007-11-15 2009-08-12 DSMIP Assets B.V. High performance membrane
CN109836735A (zh) * 2011-06-23 2019-06-04 索尔维特殊聚合物意大利有限公司 用于制造多孔膜的方法

Also Published As

Publication number Publication date
FR2165957B1 (cg-RX-API-DMAC7.html) 1979-02-09
CA1025590A (en) 1978-01-31
DE2261895B2 (de) 1979-10-25
GB1425319A (en) 1976-02-18
DE2261895A1 (de) 1973-06-28
FR2165957A1 (cg-RX-API-DMAC7.html) 1973-08-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee