Title:
【発明の名称】パーベーパレーションの手段により有機成分を含む流体混合物から水を分離するための複合膜
Document Type and Number:
Japanese Patent JPH04506766
Kind Code:
A
Abstract:
The composite membrane described has an interface layer made of cross-linked polyvinyl alcohol which is subjected to a second cross-linking process with acids which act in the vapour phase on the polyvinyl alcohol layer. Preferred acids are those of the hydrogen halides, sulphurous acid, sulphuric acid, nitrous acid, nitric acid and acetic acid.
Inventors:
Nehru, Jean Maurice Leon
Nguyen, Kang Long
Brusque, Hartmut
Nguyen, Kang Long
Brusque, Hartmut
Application Number:
JP50121591A
Publication Date:
November 26, 1992
Filing Date:
December 03, 1990
Export Citation:
Assignee:
Gfte Gesellschaft Fur Trentehnik Mbeher
Societe National Elf Aquitaine
Societe National Elf Aquitaine
International Classes:
B01D61/36; B01D69/12; B01D71/38; (IPC1-7): B01D61/36; B01D71/38
Domestic Patent References:
| JP60089143B |
Foreign References:
| US4795063A | 1989-01-03 | |||
| US3165242A | 1965-01-12 | |||
| US9242762A |
Attorney, Agent or Firm:
Masayoshi Suda