GB2031438B - Fabric-reinforced ion exchange membranes - Google Patents

Fabric-reinforced ion exchange membranes

Info

Publication number
GB2031438B
GB2031438B GB7838363A GB7838363A GB2031438B GB 2031438 B GB2031438 B GB 2031438B GB 7838363 A GB7838363 A GB 7838363A GB 7838363 A GB7838363 A GB 7838363A GB 2031438 B GB2031438 B GB 2031438B
Authority
GB
United Kingdom
Prior art keywords
fabric
membranes
polymer
ion
ion exchange
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
GB7838363A
Other versions
GB2031438A (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.)
Diamond Shamrock Corp
Original Assignee
Diamond Shamrock Corp
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 Diamond Shamrock Corp filed Critical Diamond Shamrock Corp
Priority to GB7838363A priority Critical patent/GB2031438B/en
Publication of GB2031438A publication Critical patent/GB2031438A/en
Application granted granted Critical
Publication of GB2031438B publication Critical patent/GB2031438B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms

Abstract

The production of chlorine and alkali metal hydroxide by the electrolysis of brines employs cells, which commonly incorporate ion- permselective membranes. The invention concerns improved membranes which are based upon films of sulphonyl-group containing fluorocarbon polymers having ion-exchange properties. These improved membranes have fabric reinforcement applied to a surface of the polymer film and, after the fabric reinforcement has been applied by the use of heat and pressure, the fabric-reinforced side is treated, to a depth of at least 10 microns, with a primary amine, a secondary amine or a mixture thereof, so as to aminate a majority of the polymer sulphonyl groups. This procedure avoids the polymer degradation associated with conventional lamination after sulphonamide formation, and also improves fabric incorporation.
GB7838363A 1978-09-27 1978-09-27 Fabric-reinforced ion exchange membranes Expired GB2031438B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7838363A GB2031438B (en) 1978-09-27 1978-09-27 Fabric-reinforced ion exchange membranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7838363A GB2031438B (en) 1978-09-27 1978-09-27 Fabric-reinforced ion exchange membranes

Publications (2)

Publication Number Publication Date
GB2031438A GB2031438A (en) 1980-04-23
GB2031438B true GB2031438B (en) 1983-01-12

Family

ID=10499949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838363A Expired GB2031438B (en) 1978-09-27 1978-09-27 Fabric-reinforced ion exchange membranes

Country Status (1)

Country Link
GB (1) GB2031438B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341605A (en) * 1981-01-16 1982-07-27 E. I. Du Pont De Nemours And Company Process for cation permeable membrane with reinforcement fabric embedded therein and product thereof
JP5079244B2 (en) * 2006-03-09 2012-11-21 セーレン株式会社 Composite material

Also Published As

Publication number Publication date
GB2031438A (en) 1980-04-23

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee