GB1267167A - - Google Patents
Info
- Publication number
- GB1267167A GB1267167A GB1267167DA GB1267167A GB 1267167 A GB1267167 A GB 1267167A GB 1267167D A GB1267167D A GB 1267167DA GB 1267167 A GB1267167 A GB 1267167A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substrate
- sulphonated
- oxide
- poly
- benzoates
- 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
Links
- -1 polyethylene Polymers 0.000 abstract 6
- 239000000758 substrate Substances 0.000 abstract 4
- 150000001558 benzoic acid derivatives Chemical class 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 abstract 1
- 229920001235 Poly(2,6-diphenylphenylene oxide) Polymers 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004721 Polyphenylene oxide Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000003945 anionic surfactant Substances 0.000 abstract 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000012633 leachable Substances 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 229920002863 poly(1,4-phenylene oxide) polymer Polymers 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920006380 polyphenylene oxide Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 238000001223 reverse osmosis Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000010345 tape casting Methods 0.000 abstract 1
Classifications
-
- 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
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/1213—Laminated layers
-
- 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
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
1,267,167. Coated sheet materials; reverse osmosis membrane. GENERAL ELECTRIC CO. 29 Aug., 1969 [30 Sept., 1968], No. 43196/69. Headings B1L, B1X and B2E. A gas-permeable structure comprises a continuous polymeric film of thickness less than 0.3 mils coated on a porous substrate. Such a structure is made by applying a polymeric solution to a substrate composed of two phases, one of which is separable from the other to create the desired porosity, evaporating solvent and removing said one phase, e.g. by leaching, melting or evaporation. The product may be stored prior to eliminating the movable phase. The substrate may be polyethylene or polypropylene which incorporates a leachable material, e.g. benzoates or substituted benzoates of Na, Li, K, Ca, water-soluble anionic surfactants (from which a microporous substrate can be prepared) or liquid dimethylsulphoxide. The film, which may be applied by dipping or knife-coating, can be of poly(2,6-diphenylphenylene oxide) (optionally sulphonated or sulphonated and brominated), poly(2,6-dimethylphenylene oxide) (optionally sulphonated), polyphenylene oxide or an organosiloxane-polycarbonate copolymer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76387968A | 1968-09-30 | 1968-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1267167A true GB1267167A (en) | 1972-03-15 |
Family
ID=25069065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1267167D Expired GB1267167A (en) | 1968-09-30 | 1969-08-29 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4817589B1 (en) |
| DE (1) | DE1948645A1 (en) |
| FR (1) | FR2019231A1 (en) |
| GB (1) | GB1267167A (en) |
| NL (1) | NL6914801A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2739118A1 (en) * | 1976-09-03 | 1978-03-09 | Asahi Chemical Ind | SEMIPERMEABLE MEMBRANES AND THE PROCESS FOR THEIR PRODUCTION |
| US4242159A (en) * | 1978-02-25 | 1980-12-30 | Battelle-Institut E.V. | Process for the production of composite membranes |
| US4415608A (en) | 1982-01-15 | 1983-11-15 | Uop Inc. | Continuous production of polymethylpentene membranes |
| US4908235A (en) * | 1987-03-05 | 1990-03-13 | Akzo Nv | Process for the production of a bilayer membrane |
| WO1999042204A1 (en) * | 1998-02-18 | 1999-08-26 | Bg Intellectual Property Limited | Process of forming a permeable gas separation material |
| CN112933980A (en) * | 2021-01-29 | 2021-06-11 | 三明学院 | Thiophene selective MoSe2-rGO foam composite membrane, preparation method thereof and method for separating thiophene |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54153779A (en) * | 1978-05-25 | 1979-12-04 | Kuraray Co Ltd | Preparation of polyvinyl alcohol base selective transmission membrane |
| JPS6319434A (en) * | 1986-07-10 | 1988-01-27 | Nifco Inc | Elastic oil damper |
-
1969
- 1969-08-29 GB GB1267167D patent/GB1267167A/en not_active Expired
- 1969-09-26 DE DE19691948645 patent/DE1948645A1/en active Pending
- 1969-09-30 FR FR6933340A patent/FR2019231A1/fr not_active Withdrawn
- 1969-09-30 NL NL6914801A patent/NL6914801A/xx unknown
- 1969-09-30 JP JP44077452A patent/JPS4817589B1/ja active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2739118A1 (en) * | 1976-09-03 | 1978-03-09 | Asahi Chemical Ind | SEMIPERMEABLE MEMBRANES AND THE PROCESS FOR THEIR PRODUCTION |
| US4242159A (en) * | 1978-02-25 | 1980-12-30 | Battelle-Institut E.V. | Process for the production of composite membranes |
| US4415608A (en) | 1982-01-15 | 1983-11-15 | Uop Inc. | Continuous production of polymethylpentene membranes |
| US4908235A (en) * | 1987-03-05 | 1990-03-13 | Akzo Nv | Process for the production of a bilayer membrane |
| WO1999042204A1 (en) * | 1998-02-18 | 1999-08-26 | Bg Intellectual Property Limited | Process of forming a permeable gas separation material |
| US6419725B1 (en) * | 1998-02-18 | 2002-07-16 | Lattice Intellectual Property Ltd. | Process of forming a permeable gas separation material |
| CN112933980A (en) * | 2021-01-29 | 2021-06-11 | 三明学院 | Thiophene selective MoSe2-rGO foam composite membrane, preparation method thereof and method for separating thiophene |
| CN112933980B (en) * | 2021-01-29 | 2022-04-19 | 三明学院 | Thiophene selective MoSe2-rGO foam composite membrane, preparation method thereof and method for separating thiophene |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1948645A1 (en) | 1970-04-09 |
| NL6914801A (en) | 1970-04-01 |
| FR2019231A1 (en) | 1970-06-26 |
| JPS4817589B1 (en) | 1973-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |