IT1123942B - SEMIPERMEABLE MEMBRANES OF CAPOLIAMIDES AND PROCEDURE FOR THEIR PREPARATION - Google Patents

SEMIPERMEABLE MEMBRANES OF CAPOLIAMIDES AND PROCEDURE FOR THEIR PREPARATION

Info

Publication number
IT1123942B
IT1123942B IT30101/76A IT3010176A IT1123942B IT 1123942 B IT1123942 B IT 1123942B IT 30101/76 A IT30101/76 A IT 30101/76A IT 3010176 A IT3010176 A IT 3010176A IT 1123942 B IT1123942 B IT 1123942B
Authority
IT
Italy
Prior art keywords
capoliamides
procedure
preparation
semipermeable membranes
semipermeable
Prior art date
Application number
IT30101/76A
Other languages
Italian (it)
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Application granted granted Critical
Publication of IT1123942B publication Critical patent/IT1123942B/en

Links

Classifications

    • 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
    • C08G69/38—Polyamides prepared from aldehydes and polynitriles
    • 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
    • C08G69/46—Post-polymerisation treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
IT30101/76A 1975-12-06 1976-12-03 SEMIPERMEABLE MEMBRANES OF CAPOLIAMIDES AND PROCEDURE FOR THEIR PREPARATION IT1123942B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752554932 DE2554932A1 (en) 1975-12-06 1975-12-06 SEMIPERMEABLE MEMBRANES MADE OF COPOLYAMIDES

Publications (1)

Publication Number Publication Date
IT1123942B true IT1123942B (en) 1986-04-30

Family

ID=5963661

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30101/76A IT1123942B (en) 1975-12-06 1976-12-03 SEMIPERMEABLE MEMBRANES OF CAPOLIAMIDES AND PROCEDURE FOR THEIR PREPARATION

Country Status (9)

Country Link
JP (1) JPS5270989A (en)
AT (1) AT364733B (en)
BE (1) BE849099A (en)
CA (1) CA1101161A (en)
DE (1) DE2554932A1 (en)
FR (1) FR2333548A1 (en)
GB (1) GB1539264A (en)
IT (1) IT1123942B (en)
NL (1) NL7613507A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115428A (en) * 1979-02-26 1980-09-05 Teijin Ltd Aromatic compolyamide and preparation thereof
JPS5734125A (en) * 1980-08-07 1982-02-24 Teijin Ltd Fully aromatic polyamide fiber and film and their production
US4385148A (en) * 1981-06-25 1983-05-24 E. I. Du Pont De Nemours And Company Reverse osmosis membrane preparation
JPS5855006A (en) * 1981-09-28 1983-04-01 Mitsubishi Chem Ind Ltd Polysulfone ether amide membrane
ES516206A0 (en) * 1981-10-21 1983-10-01 Du Pont "IMPROVEMENTS INTRODUCED IN A PROCEDURE FOR THE PREPARATION OF A REVERSE OSMOSIS MEMBRANE".
DE3220376A1 (en) * 1982-05-29 1983-12-01 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach MEMBRANE FILTER FOR MICROFILTRATION AND METHOD FOR THE PRODUCTION THEREOF
DE3342823A1 (en) * 1983-11-26 1985-06-05 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach METHOD FOR PRODUCING FILTER ELEMENTS BASED ON AROMATIC POLYAMIDE
US4621134A (en) * 1984-04-25 1986-11-04 Mitsubishi Petrochemical Co., Ltd. Aromatic polythioetheramide
JPS61259727A (en) * 1985-05-13 1986-11-18 Agency Of Ind Science & Technol Separation membrane
JPS62102803A (en) * 1985-10-31 1987-05-13 Agency Of Ind Science & Technol Separating membrane
JPS62102802A (en) * 1985-10-31 1987-05-13 Agency Of Ind Science & Technol Separating membrane
US4695383A (en) * 1986-03-12 1987-09-22 Toyo Boseki Kabushiki Kaisha Permselective membrane
DE3731185A1 (en) * 1987-09-17 1989-03-30 Huels Chemische Werke Ag MOLDS OF HIGH MOLECULAR AROMATIC POLYAMIDES
EP0473541A3 (en) * 1990-08-17 1992-05-27 Ciba-Geigy Ag Process for enrichment or separation, copolyamide and copolyimidamide and their use

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094511A (en) * 1958-11-17 1963-06-18 Du Pont Wholly aromatic polyamides
US3349062A (en) * 1966-07-21 1967-10-24 Du Pont Halogenated aromatic polyamides
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3904519A (en) * 1971-10-19 1975-09-09 Us Interior Reverse osmosis process using crosslinked aromatic polyamide membranes
FR2193634A1 (en) * 1972-07-20 1974-02-22 Du Pont Polyimide semi-permeable membranes
JPS5223346B2 (en) * 1972-08-30 1977-06-23
US3993625A (en) * 1973-05-28 1976-11-23 Toray Industries, Inc. Permselective polymeric membranes of organic polyamide or polyhydrazide
DE2556883C2 (en) * 1974-12-27 1981-11-26 Teijin Ltd., Osaka Aromatic copolyamides and their use for the production of fibers, threads, films and foils
DE2602493A1 (en) * 1975-01-27 1976-07-29 Ramot Plastics PROCESS FOR THE REMOVAL OF UREA FROM AQUATIC SOLUTIONS

Also Published As

Publication number Publication date
DE2554932A1 (en) 1977-06-08
ATA897276A (en) 1981-04-15
CA1101161A (en) 1981-05-19
NL7613507A (en) 1977-06-08
BE849099A (en) 1977-06-06
GB1539264A (en) 1979-01-31
FR2333548A1 (en) 1977-07-01
FR2333548B1 (en) 1983-02-18
AT364733B (en) 1981-11-10
JPS5270989A (en) 1977-06-13

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