DE3865801D1 - Verbundmembran mit einem ueberzug aus poly-meta-phenylen tetrahydrofuran-2,3,4,5-tetracarboxylamid zur umkehrosmose. - Google Patents

Verbundmembran mit einem ueberzug aus poly-meta-phenylen tetrahydrofuran-2,3,4,5-tetracarboxylamid zur umkehrosmose.

Info

Publication number
DE3865801D1
DE3865801D1 DE8888116562T DE3865801T DE3865801D1 DE 3865801 D1 DE3865801 D1 DE 3865801D1 DE 8888116562 T DE8888116562 T DE 8888116562T DE 3865801 T DE3865801 T DE 3865801T DE 3865801 D1 DE3865801 D1 DE 3865801D1
Authority
DE
Germany
Prior art keywords
tetracarboxylamide
phenylene
meta
tetrahydrofuran
poly
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 - Lifetime
Application number
DE8888116562T
Other languages
English (en)
Inventor
Samuel David Arthur
Sherman Archie Sundet
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of DE3865801D1 publication Critical patent/DE3865801D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • 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
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • 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
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
DE8888116562T 1987-10-08 1988-10-06 Verbundmembran mit einem ueberzug aus poly-meta-phenylen tetrahydrofuran-2,3,4,5-tetracarboxylamid zur umkehrosmose. Expired - Lifetime DE3865801D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/105,695 US4749488A (en) 1987-10-08 1987-10-08 Multilayer reverse osmosis membrane in which one layer is poly-meta-phenylene tetrahydrofuran-2,3,4,5-tetracarboxamide

Publications (1)

Publication Number Publication Date
DE3865801D1 true DE3865801D1 (de) 1991-11-28

Family

ID=22307289

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888116562T Expired - Lifetime DE3865801D1 (de) 1987-10-08 1988-10-06 Verbundmembran mit einem ueberzug aus poly-meta-phenylen tetrahydrofuran-2,3,4,5-tetracarboxylamid zur umkehrosmose.

Country Status (5)

Country Link
US (1) US4749488A (de)
EP (1) EP0311912B1 (de)
JP (1) JPH01132630A (de)
CA (1) CA1306826C (de)
DE (1) DE3865801D1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01180208A (ja) * 1988-01-11 1989-07-18 Toray Ind Inc 複合半透膜の製造方法およびその膜
US4865695A (en) * 1988-09-12 1989-09-12 Westinghouse Electric Corp. Preparation of complexes of zirconium and hafnium tetrachlorides with phosphorus oxychloride
US5254261A (en) * 1991-08-12 1993-10-19 Hydranautics Interfacially synthesized reverse osmosis membranes and processes for preparing the same
US5246587A (en) * 1991-12-23 1993-09-21 Hydranautics Interfacially synthesized reverse osmosis membranes and processes for preparing the same
US5252218A (en) * 1992-06-02 1993-10-12 Cargill, Incorporated Process for separating solid particulates from a nonaqueous suspension
US5368889A (en) * 1993-04-16 1994-11-29 The Dow Chemical Company Method of making thin film composite membranes
US5482633A (en) * 1993-10-12 1996-01-09 Cargill, Incorporated Process for removing vegetable oil waxes by fast cooling vegetable oil and using a porous non-metallic inorganic filter
JP2017507778A (ja) * 2014-03-19 2017-03-23 イー．ダブリュー．− ハイドロフィリック プロセシーズ エルティーディー フィルタ

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649687A (en) * 1967-11-06 1972-03-14 Aerojet General Co 1 3 5-cyclohexane tricarbonyl chloride
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3744642A (en) * 1970-12-30 1973-07-10 Westinghouse Electric Corp Interface condensation desalination membranes
US3730941A (en) * 1971-08-09 1973-05-01 Westinghouse Electric Corp Polymides from tetrahydrofuran-2,3:4,5-tetracarboxylic acid dianhydrides
JPS5817783B2 (ja) * 1976-07-08 1983-04-09 日本曹達株式会社 固体表面に担持されたヘテロ巨大環化合物
JPS5554004A (en) * 1978-10-18 1980-04-21 Teijin Ltd Selective permeable membrane and its manufacturing
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane
DE2940447C2 (de) * 1979-10-05 1982-03-18 Forschungsinstitut Berghof GmbH, 7400 Tübingen Integralasymmetrische Ultrafiltrationsmembran
US4643829A (en) * 1984-07-30 1987-02-17 E. I. Du Pont De Nemours And Company Multilayer reverse osmosis membrane in which one layer is poly-meta-phenylene cyclohexane-1,3,5-tricarboxamide
AU4787685A (en) * 1984-09-27 1986-04-10 E.I. Du Pont De Nemours And Company Aromatic polyamide membrane for reverse osmosis
JPS62247808A (ja) * 1986-04-18 1987-10-28 Toray Ind Inc 半透性複合膜の製造法
US4626468A (en) * 1986-04-23 1986-12-02 E. I. Du Pont De Nemours And Company Microporous support layer with interfacially polymerized copolyamide thereon

Also Published As

Publication number Publication date
US4749488A (en) 1988-06-07
JPH01132630A (ja) 1989-05-25
CA1306826C (en) 1992-08-25
EP0311912A1 (de) 1989-04-19
EP0311912B1 (de) 1991-10-23

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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