NL176231C - ANISOTROPE GEL MEMBRANES AND METHOD OF MANUFACTURING THEM. - Google Patents

ANISOTROPE GEL MEMBRANES AND METHOD OF MANUFACTURING THEM.

Info

Publication number: NL176231C
Authority: NL; Netherlands
Prior art keywords: anisotrope; manufacturing; gel membranes; membranes; gel
Prior art date: 1973-01-16

Application number

NLAANVRAGE7400402,A

Other languages

Dutch (nl)

Other versions

NL7400402A (en

NL176231B (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.)

1973-01-16

Filing date

1974-01-11

Publication date

1985-03-18

1974-01-11 Application filed by Montedison Spa filed Critical Montedison Spa

1974-07-18 Publication of NL7400402A publication Critical patent/NL7400402A/xx

1984-10-16 Publication of NL176231B publication Critical patent/NL176231B/en

1985-03-18 Application granted granted Critical

1985-03-18 Publication of NL176231C publication Critical patent/NL176231C/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
- C08G69/40—Polyamides containing oxygen in the form of ether groups
- 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
- C08G69/42—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)
Polyamides (AREA)
Compositions Of Macromolecular Compounds (AREA)

NLAANVRAGE7400402,A 1973-01-16 1974-01-11 ANISOTROPE GEL MEMBRANES AND METHOD OF MANUFACTURING THEM. NL176231C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT19247/73A IT978187B (en)	1973-01-16	1973-01-16	ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW AND ELEVATE SALINE REJECTION BASED ON POLYPERAZINAMIDES AND RELATIVE PREPARATION PROCEDURES

Publications (3)

Publication Number	Publication Date
NL7400402A NL7400402A (en)	1974-07-18
NL176231B NL176231B (en)	1984-10-16
NL176231C true NL176231C (en)	1985-03-18

Family

ID=11156091

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7400402,A NL176231C (en)	1973-01-16	1974-01-11	ANISOTROPE GEL MEMBRANES AND METHOD OF MANUFACTURING THEM.

Country Status (12)

Country	Link
JP (1)	JPS574361B2 (en)
AU (1)	AU6450974A (en)
BE (1)	BE809757A (en)
CA (1)	CA1024711A (en)
DE (1)	DE2401428C2 (en)
ES (1)	ES422290A1 (en)
FR (1)	FR2324335A1 (en)
GB (1)	GB1402247A (en)
IL (1)	IL44156A (en)
IT (1)	IT978187B (en)
NL (1)	NL176231C (en)
ZA (1)	ZA74296B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2704600C3 (en) *	1977-02-04	1988-05-26	Hoechst Ag, 6230 Frankfurt	Permselective, asymmetric hemofiltration membrane with heteroporous structure based on polyamide
JPS57174107A (en) *	1981-04-20	1982-10-26	Teijin Ltd	Production of permselective membrane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3696031A (en) *	1969-07-08	1972-10-03	Consiglio Nazionale Ricerche	Osmosis process
NL7009957A (en) *	1969-07-08	1971-01-12
US3664986A (en) *	1969-10-14	1972-05-23	Du Pont	1,2,5-thiadiazole polymers
BE793504A (en) *	1971-12-30	1973-06-29	Montedison Spa	ANISOTROPIC RETROOSMOSIS MEMBRANES AND THEIR PREPARATION PROCESS

1973
- 1973-01-15 ZA ZA740296A patent/ZA74296B/en unknown
- 1973-01-16 IT IT19247/73A patent/IT978187B/en active
1974
- 1974-01-11 NL NLAANVRAGE7400402,A patent/NL176231C/en not_active IP Right Cessation
- 1974-01-12 DE DE2401428A patent/DE2401428C2/en not_active Expired
- 1974-01-14 GB GB176174A patent/GB1402247A/en not_active Expired
- 1974-01-14 FR FR7401108A patent/FR2324335A1/en active Granted
- 1974-01-15 ES ES422290A patent/ES422290A1/en not_active Expired
- 1974-01-15 BE BE139818A patent/BE809757A/en unknown
- 1974-01-15 AU AU64509/74A patent/AU6450974A/en not_active Expired
- 1974-01-16 CA CA190,326A patent/CA1024711A/en not_active Expired
- 1974-01-16 JP JP717974A patent/JPS574361B2/ja not_active Expired
- 1974-02-06 IL IL44156A patent/IL44156A/en unknown

Also Published As

Publication number	Publication date
BE809757A (en)	1974-07-15
JPS574361B2 (en)	1982-01-26
DE2401428A1 (en)	1974-07-18
AU6450974A (en)	1975-07-17
JPS49109271A (en)	1974-10-17
GB1402247A (en)	1975-08-06
DE2401428C2 (en)	1985-11-14
ES422290A1 (en)	1976-04-01
NL7400402A (en)	1974-07-18
NL176231B (en)	1984-10-16
FR2324335B1 (en)	1978-02-10
IL44156A (en)	1976-08-31
ZA74296B (en)	1974-11-27
IL44156A0 (en)	1974-05-16
IT978187B (en)	1974-09-20
FR2324335A1 (en)	1977-04-15
CA1024711A (en)	1978-01-24

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Legal Events

Date	Code	Title
1981-01-26	BA	A request for search or an international-type search has been filed
1981-03-25	BB	A search report has been drawn up
1981-08-03	BC	A request for examination has been filed
1985-01-01	A85	Still pending on 85-01-01
1994-02-16	V4	Discontinued because of reaching the maximum lifetime of a patent