DE68903638D1 - CHLORINE-RESISTANT SEMI-PERMANENT MEMBRANES. - Google Patents
CHLORINE-RESISTANT SEMI-PERMANENT MEMBRANES.Info
- Publication number
- DE68903638D1 DE68903638D1 DE8989908103T DE68903638T DE68903638D1 DE 68903638 D1 DE68903638 D1 DE 68903638D1 DE 8989908103 T DE8989908103 T DE 8989908103T DE 68903638 T DE68903638 T DE 68903638T DE 68903638 D1 DE68903638 D1 DE 68903638D1
- Authority
- DE
- Germany
- Prior art keywords
- chlorine
- resistant semi
- membranes
- permanent
- permanent membranes
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1989/001087 WO1990010494A1 (en) | 1987-06-08 | 1989-03-16 | Chlorine-resistant semipermeable membranes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68903638D1 true DE68903638D1 (en) | 1993-01-07 |
DE68903638T2 DE68903638T2 (en) | 1993-04-01 |
Family
ID=22214888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8989908103T Expired - Fee Related DE68903638T2 (en) | 1989-03-16 | 1989-03-16 | CHLORINE-RESISTANT SEMI-PERMANENT MEMBRANES. |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPH04504076A (en) |
DE (1) | DE68903638T2 (en) |
DK (1) | DK158991D0 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2012057028A1 (en) * | 2010-10-26 | 2014-05-12 | 東レ株式会社 | Separation membrane, separation membrane element and method for producing separation membrane |
EP3088073B1 (en) * | 2013-12-26 | 2020-11-18 | LG Chem, Ltd. | High-functional polyamide-based dry water treatment separator and method for manufacturing same |
EP3578249B1 (en) * | 2017-01-31 | 2022-11-30 | Toray Industries, Inc. | Semipermeable composite membrane and method for manufacturing semipermeable composite membrane |
-
1989
- 1989-03-16 JP JP1507631A patent/JPH04504076A/en active Pending
- 1989-03-16 DE DE8989908103T patent/DE68903638T2/en not_active Expired - Fee Related
-
1991
- 1991-09-10 DK DK911589A patent/DK158991D0/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK158991A (en) | 1991-09-10 |
DE68903638T2 (en) | 1993-04-01 |
DK158991D0 (en) | 1991-09-10 |
JPH04504076A (en) | 1992-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |