NL7311347A - - Google Patents
Info
- Publication number
- NL7311347A NL7311347A NL7311347A NL7311347A NL7311347A NL 7311347 A NL7311347 A NL 7311347A NL 7311347 A NL7311347 A NL 7311347A NL 7311347 A NL7311347 A NL 7311347A NL 7311347 A NL7311347 A NL 7311347A
- Authority
- NL
- Netherlands
- Prior art keywords
- film
- ethylene
- vinyl acetate
- copolymer
- styrene
- Prior art date
Links
- 239000000203 mixture Substances 0.000 abstract 5
- 229920000642 polymer Polymers 0.000 abstract 5
- 229920001577 copolymer Polymers 0.000 abstract 4
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract 3
- 239000004793 Polystyrene Substances 0.000 abstract 2
- -1 polyethylene Polymers 0.000 abstract 2
- 229920002223 polystyrene Polymers 0.000 abstract 2
- 239000011148 porous material Substances 0.000 abstract 2
- BHJAAJNWRXRBOM-UHFFFAOYSA-N 1,8-dichloro-3,5-dimethyloct-1-ene Chemical compound C(CCC(C)CC(C)C=CCl)Cl BHJAAJNWRXRBOM-UHFFFAOYSA-N 0.000 abstract 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000002174 Styrene-butadiene Substances 0.000 abstract 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 abstract 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- QZUJCEPTAIXZFA-UHFFFAOYSA-N methyl prop-2-enoate;styrene Chemical compound COC(=O)C=C.C=CC1=CC=CC=C1 QZUJCEPTAIXZFA-UHFFFAOYSA-N 0.000 abstract 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract 1
- 229920002492 poly(sulfone) Polymers 0.000 abstract 1
- 229920002647 polyamide 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
- 239000004926 polymethyl methacrylate Substances 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 229920000638 styrene acrylonitrile Polymers 0.000 abstract 1
- 239000011115 styrene butadiene Substances 0.000 abstract 1
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 1
Classifications
-
- 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
- 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
- B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
- B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/12—Insulating conductors or cables by applying loose fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
1449644 Porous films MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Aug 1973 [18 Aug 1972 12 Oct 1972] 39081/73 Heading B5B [Also in Division C3] A porous film is prepared by forming a film from a blend of 100 parts by weight of a first polymer composition I and from 30 to 250 parts by weight of a second polymer composition II, stretching the film to increase its dimension in one direction by at least 1À5 times and to increase its surface area by from 2 to 20 times and then treating the stretched film with a liquid or vaporous solvent to swell polymer composition I but to elute the composition II from the film, so leaving a porous film. The size of the pores in the final film may be adjusted by using a copolymer as either I or II and altering the ratio between the components of the copolymer. Specified polymers I are polyethylene, polypropylene, polystyrene, polyvinyl chloride, polycarbonate, polysulphone, polyamide and an ethylene-vinyl acetate copolymer. Exemplified polymers II are polymethyl methacrylate, polystyrene, ethylene-vinyl acetate copolymer and polyethylene oxide. Specified copolymers for adjusting pore size are, ethylene-vinyl acetate, ethylene-propylene, propylene-vinyl chloride, styrene-acrylonitrile, styrene-butadiene, styrene-methyl acrylate and vinyl acetate-ethyl acrylate copolymers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8300272A JPS5627532B2 (en) | 1972-08-18 | 1972-08-18 | |
| JP10252772A JPS521751B2 (en) | 1972-10-12 | 1972-10-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL7311347A true NL7311347A (en) | 1974-02-20 |
| NL162107C NL162107C (en) | 1980-04-15 |
Family
ID=26424051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7311347.A NL162107C (en) | 1972-08-18 | 1973-08-17 | PROCESS FOR MANUFACTURING POROUS POLYMER FILMS. |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1027319A (en) |
| DE (1) | DE2341542C3 (en) |
| FR (1) | FR2196238B1 (en) |
| GB (1) | GB1449644A (en) |
| NL (1) | NL162107C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51119069A (en) * | 1975-03-20 | 1976-10-19 | Nippon Oil Co Ltd | Method of producing permeable film |
| JPS5939460B2 (en) * | 1976-12-10 | 1984-09-22 | 日石三菱株式会社 | Manufacturing method of porous membrane |
| AU1975583A (en) * | 1982-09-30 | 1984-04-05 | Extracorporeal Medical Specialties Inc. | Making semipermeable membranes from polypropylene and a second polymer |
| GB8412673D0 (en) * | 1984-05-18 | 1984-06-27 | Raychem Ltd | Polymer membrane |
| US5102917A (en) * | 1990-09-14 | 1992-04-07 | Cpc Engineering Corporation | Porous polysulfone media suitable for filtration |
| CN113041848B (en) * | 2021-03-24 | 2022-09-16 | 南京工业大学 | A method for preparing block copolymer hollow fiber membrane by combining selective swelling and melt spinning drawing |
-
1973
- 1973-08-16 DE DE2341542A patent/DE2341542C3/en not_active Expired
- 1973-08-16 CA CA178,981A patent/CA1027319A/en not_active Expired
- 1973-08-17 FR FR7329996A patent/FR2196238B1/fr not_active Expired
- 1973-08-17 NL NL7311347.A patent/NL162107C/en active
- 1973-08-17 GB GB3908173A patent/GB1449644A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2196238A1 (en) | 1974-03-15 |
| DE2341542C3 (en) | 1978-09-28 |
| FR2196238B1 (en) | 1977-05-06 |
| DE2341542A1 (en) | 1974-03-21 |
| GB1449644A (en) | 1976-09-15 |
| DE2341542B2 (en) | 1975-10-09 |
| NL162107C (en) | 1980-04-15 |
| CA1027319A (en) | 1978-03-07 |
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