NL175884C - ANISOTROPE MEMBRANES FOR REVERSE OSMOSIS. - Google Patents

ANISOTROPE MEMBRANES FOR REVERSE OSMOSIS.

Info

Publication number: NL175884C
Authority: NL; Netherlands
Prior art keywords: anisotrope; membranes; reverse osmosis; osmosis; reverse
Prior art date: 1971-12-30

Application number

NLAANVRAGE7217668,A

Other languages

Dutch (nl)

Other versions

NL175884B (en

NL7217668A (en

Original Assignee

Montedison 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.)

1971-12-30

Filing date

1972-12-27

Publication date

1985-01-16

1972-12-27 Application filed by Montedison Spa filed Critical Montedison Spa

1973-07-03 Publication of NL7217668A publication Critical patent/NL7217668A/xx

1984-08-16 Publication of NL175884B publication Critical patent/NL175884B/en

1985-01-16 Application granted granted Critical

1985-01-16 Publication of NL175884C publication Critical patent/NL175884C/en

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
- 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
- C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen

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)
Compositions Of Macromolecular Compounds (AREA)

NLAANVRAGE7217668,A 1971-12-30 1972-12-27 ANISOTROPE MEMBRANES FOR REVERSE OSMOSIS. NL175884C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT33137/71A IT944578B (en)	1971-12-30	1971-12-30	POLYMER MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW OF WATER AND HIGH SALINE REJECTION AND METHOD OF PREPARATION OF SUCH MEMBRANES

Publications (3)

Publication Number	Publication Date
NL7217668A NL7217668A (en)	1973-07-03
NL175884B NL175884B (en)	1984-08-16
NL175884C true NL175884C (en)	1985-01-16

Family

ID=11236670

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7217668,A NL175884C (en)	1971-12-30	1972-12-27	ANISOTROPE MEMBRANES FOR REVERSE OSMOSIS.

Country Status (13)

Country	Link
JP (1)	JPS5611484B2 (en)
BE (1)	BE793504A (en)
BR (1)	BR7209266D0 (en)
CA (1)	CA1018315A (en)
DE (1)	DE2263774C2 (en)
EG (1)	EG10806A (en)
ES (1)	ES410178A1 (en)
FR (1)	FR2166115B1 (en)
GB (1)	GB1391559A (en)
IL (1)	IL41210A (en)
IT (1)	IT944578B (en)
NL (1)	NL175884C (en)
ZA (1)	ZA729171B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ZA74296B (en) *	1973-01-16	1974-11-27	Montedison Spa	Reverse osmosis anisotropic membranes with great water flow and strong saline rejection,based on polypiperazine amides,and process for preparing such membranes
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
IT1153101B (en) *	1982-07-01	1987-01-14	Montedison Spa	PROCEDURE FOR THE PREPARATION OF ANISOTROPIC FORMED BODIES BASED ON POLY-PIPERAZINAMIDES
IT1222627B (en) *	1987-09-09	1990-09-05	Separem Spa	PROCEDURE FOR THE PREPARATION OF MEMBRANES FOR REVERSE OSMOSIS AND MEMBRANES OBTAINED BY THIS PROCEDURE
US4879044A (en) *	1987-10-14	1989-11-07	Exxon Research And Engineering Company	Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non aromatics
US4921611A (en) *	1987-10-14	1990-05-01	Schucker Robert C	Thin film composite membrane prepared by deposition from a solution
US4828773A (en) *	1987-10-14	1989-05-09	Exxon Research And Engineering Company	Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non-aromatics
US4861628A (en) *	1987-10-14	1989-08-29	Exxon Research And Engineering Company	Thin film composite membrane prepared by suspension deposition
US4837054A (en) *	1987-10-14	1989-06-06	Exxon Research And Engineering Company	Thin film composite membrane prepared by deposition from a solution
US5045354A (en) *	1989-12-19	1991-09-03	Exxon Research & Engineering Company	Production of supported thin film membranes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3687842A (en) *	1969-07-08	1972-08-29	Consiglio Nazionale Ricerche	Osmosis process
NL171019C (en) *	1969-07-08	1983-02-01	Consiglio Nazionale Ricerche	MEMBRANES FOR REVERSE OSMOSIS.

0
- BE BE793504D patent/BE793504A/en unknown
1971
- 1971-12-30 IT IT33137/71A patent/IT944578B/en active
1972
- 1972-12-27 NL NLAANVRAGE7217668,A patent/NL175884C/en not_active IP Right Cessation
- 1972-12-27 EG EG545/72A patent/EG10806A/en active
- 1972-12-28 FR FR7246566A patent/FR2166115B1/fr not_active Expired
- 1972-12-28 DE DE2263774A patent/DE2263774C2/en not_active Expired
- 1972-12-28 ZA ZA729171A patent/ZA729171B/en unknown
- 1972-12-29 BR BR9266/72A patent/BR7209266D0/en unknown
- 1972-12-29 ES ES410178A patent/ES410178A1/en not_active Expired
- 1972-12-29 JP JP438573A patent/JPS5611484B2/ja not_active Expired
- 1972-12-29 IL IL41210A patent/IL41210A/en unknown
1973
- 1973-01-01 GB GB5966272A patent/GB1391559A/en not_active Expired
- 1973-01-02 CA CA160,396A patent/CA1018315A/en not_active Expired

Also Published As

Publication number	Publication date
JPS5611484B2 (en)	1981-03-14
DE2263774C2 (en)	1982-04-01
JPS4880481A (en)	1973-10-27
NL175884B (en)	1984-08-16
NL7217668A (en)	1973-07-03
IT944578B (en)	1973-04-20
IL41210A0 (en)	1973-02-28
ZA729171B (en)	1973-09-26
BE793504A (en)	1973-06-29
FR2166115A1 (en)	1973-08-10
BR7209266D0 (en)	1973-09-25
DE2263774A1 (en)	1973-07-12
CA1018315A (en)	1977-10-04
FR2166115B1 (en)	1976-04-23
IL41210A (en)	1976-08-31
GB1391559A (en)	1975-04-23
ES410178A1 (en)	1975-12-01
EG10806A (en)	1976-09-30

Publication	Publication Date	Title
NL171019C (en)	1983-02-01	MEMBRANES FOR REVERSE OSMOSIS.
NL147637B (en)	1975-11-17	DEVICE FOR REVERSE OSMOSIS.
BE805095A (en)	1974-03-20	MEMBRANES FOR ULTRAFILTRATION
CA1000135A (en)	1976-11-23	Interface condensation desalination membranes
AT321248B (en)	1975-03-25	Semipermeable membranes
NL172834C (en)	1983-06-01	FILTER CENTRIFUGE.
CH556678A (en)	1974-12-13	DIALYZER.
DK123074B (en)	1972-05-15	Support plate for the membranes of a dialyzer, in particular for hemodialysis.
SE383239B (en)	1976-03-01	TRANSVERSAL FILTER.
NL7415419A (en)	1975-06-06	MEMBRANES.
IL43783A0 (en)	1974-03-14	Dynamic membranes for reverse osmosis
IT994997B (en)	1975-10-20	SEMIPERMEABLE MEMBRANES
NL166625C (en)	1981-09-15	DIALYSIS DEVICE.
NL175884C (en)	1985-01-16	ANISOTROPE MEMBRANES FOR REVERSE OSMOSIS.
DK139611B (en)	1979-03-19	Support plates for membranes in separation devices.
ES188841Y (en)	1974-09-16	FILTRATION DEVICE FOR THE PREPARATION OF FILTERED DECAFE BEVERAGES.
NL171861B (en)	1983-01-03	DIFFUSION DEVICE FOR SUBSTANCES BETWEEN TWO LIQUIDS BY SEMIPERMEABLE MEMBRANES.
NL176749C (en)	1985-06-03	DIALYSIS DEVICE.
IL41164A0 (en)	1973-02-28	Reverse osmosis membranes
NL172501C (en)	1983-09-01	CONNECTION CLAMP.
BE771070A (en)	1972-02-07	MICROPOROUS MEMBRANES
CH536340A (en)	1973-04-30	Membranes microporeuses en polyethers phenoliques
CH556189A (en)	1974-11-29	FILTER.
IT997523B (en)	1975-12-30	REVERSE OSMOSIS OR ULTRAFILTRATION DEVICE
CA930126A (en)	1973-07-17	Preparing reverse osmosis membranes

Legal Events

Date	Code	Title
1979-12-27	BA	A request for search or an international-type search has been filed
1982-01-04	BB	A search report has been drawn up
1982-06-01	BC	A request for examination has been filed
1993-01-18	V4	Discontinued because of reaching the maximum lifetime of a patent