FR2054256A5 - - Google Patents

Info

Publication number
FR2054256A5
FR2054256A5 FR7025124A FR7025124A FR2054256A5 FR 2054256 A5 FR2054256 A5 FR 2054256A5 FR 7025124 A FR7025124 A FR 7025124A FR 7025124 A FR7025124 A FR 7025124A FR 2054256 A5 FR2054256 A5 FR 2054256A5
Authority
FR
France
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
FR7025124A
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.)
Consiglio Nazionale delle Richerche CNR
Montedison SpA
Original Assignee
Consiglio Nazionale delle Richerche CNR
Montedison SpA
Montecatini Edison SpA
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 Consiglio Nazionale delle Richerche CNR, Montedison SpA, Montecatini Edison SpA filed Critical Consiglio Nazionale delle Richerche CNR
Application granted granted Critical
Publication of FR2054256A5 publication Critical patent/FR2054256A5/fr
Expired 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polyamides (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
FR7025124A 1969-07-08 1970-07-07 Expired FR2054256A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1931769 1969-07-08

Publications (1)

Publication Number Publication Date
FR2054256A5 true FR2054256A5 (fr) 1971-04-16

Family

ID=11156673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7025124A Expired FR2054256A5 (fr) 1969-07-08 1970-07-07

Country Status (11)

Country Link
US (2) US3687842A (fr)
JP (1) JPS4835153B1 (fr)
BE (1) BE753088A (fr)
CA (1) CA922240A (fr)
DE (1) DE2033544A1 (fr)
ES (1) ES381520A1 (fr)
FR (1) FR2054256A5 (fr)
GB (1) GB1276595A (fr)
IL (1) IL34860A (fr)
NL (1) NL7009957A (fr)
ZA (1) ZA704671B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324335A1 (fr) * 1973-01-16 1977-04-15 Montedison Spa Membranes anisotropes pour osmose inverse et procede de preparation de telles membranes

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793504A (fr) * 1971-12-30 1973-06-29 Montedison Spa Membranes anisotropes de retro-osmose et leur procede de preparation
US4129559A (en) * 1973-01-16 1978-12-12 Montedison S.P.A. Reverse osmosis anisotropic membranes based on polypiperazine amides
US4259183A (en) * 1978-11-07 1981-03-31 Midwest Research Institute Reverse osmosis membrane
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane
JPS55121891U (fr) * 1979-02-22 1980-08-29
US4337154A (en) * 1979-04-04 1982-06-29 Nippon Shokubai Kagaku Kogyo Co., Ltd. Crosslinked composite semipermeable membrane
IT1153101B (it) * 1982-07-01 1987-01-14 Montedison Spa Procedimento per la preparazione di corpi formati anisotropi a base di poli-piperazinammidi
US4659475A (en) * 1984-03-19 1987-04-21 Midwest Research Institute Composite reverse osmosis membrane comprising crosslinked poly(amine-epihalohydrin adduct)
US4769148A (en) * 1987-11-18 1988-09-06 The Dow Chemical Company Novel polyamide reverse osmosis membranes
US4859384A (en) * 1987-11-18 1989-08-22 Filmtec Corp. Novel polyamide reverse osmosis membranes
US5770136A (en) * 1995-08-07 1998-06-23 Huang; Xiaodi Method for consolidating powdered materials to near net shape and full density
US5922203A (en) * 1997-10-07 1999-07-13 Hydranautics Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
US6042780A (en) * 1998-12-15 2000-03-28 Huang; Xiaodi Method for manufacturing high performance components
US6464873B1 (en) 1999-06-15 2002-10-15 Hydranautics Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same
US7156997B2 (en) * 2001-10-05 2007-01-02 Dow Global Technologies Inc. Package assembly for piperazine-based membranes
US8177978B2 (en) * 2008-04-15 2012-05-15 Nanoh20, Inc. Reverse osmosis membranes
WO2011008549A2 (fr) 2009-06-29 2011-01-20 NanoH2O Inc. Membranes perfectionnées d'osmose inverse, composites à couches minces, hybrides, avec des additifs azotés
JP5968328B2 (ja) 2010-11-10 2016-08-10 ナノエイチツーオー・インコーポレーテッド 非金属添加剤を含む改良された混成ｔｆｃｒｏ膜
US9861940B2 (en) 2015-08-31 2018-01-09 Lg Baboh2O, Inc. Additives for salt rejection enhancement of a membrane
US9737859B2 (en) 2016-01-11 2017-08-22 Lg Nanoh2O, Inc. Process for improved water flux through a TFC membrane
US10155203B2 (en) 2016-03-03 2018-12-18 Lg Nanoh2O, Inc. Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324335A1 (fr) * 1973-01-16 1977-04-15 Montedison Spa Membranes anisotropes pour osmose inverse et procede de preparation de telles membranes

Also Published As

Publication number Publication date
ES381520A1 (es) 1973-04-16
NL7009957A (fr) 1971-01-12
US3743596A (en) 1973-07-03
GB1276595A (en) 1972-06-01
US3687842A (en) 1972-08-29
JPS4835153B1 (fr) 1973-10-26
ZA704671B (en) 1971-04-28
IL34860A0 (en) 1970-09-17
DE2033544A1 (de) 1971-01-21
CA922240A (en) 1973-03-06
IL34860A (en) 1973-04-30
BE753088A (fr) 1971-01-07

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