DK157978C - MEMBRANE OF THE ANISOTROPIC GEL TYPE OF POLYPIPERAZINAMIDES AND PROCEDURES FOR PRODUCING THEREOF - Google Patents

MEMBRANE OF THE ANISOTROPIC GEL TYPE OF POLYPIPERAZINAMIDES AND PROCEDURES FOR PRODUCING THEREOF

Info

Publication number: DK157978C
Authority: DK; Denmark
Prior art keywords: polypiperazinamides; procedures; membrane; producing; gel type
Prior art date: 1973-05-07

Application number

DK240274A

Other languages

Danish (da)

Other versions

DK157978B (en

Inventor

Lino Credali

Vincenzo Guidotti

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.)

1973-05-07

Filing date

1974-05-02

Publication date

1990-08-27

1974-05-02 Application filed by Montedison Spa filed Critical Montedison Spa

1990-03-12 Publication of DK157978B publication Critical patent/DK157978B/en

1990-08-27 Application granted granted Critical

1990-08-27 Publication of DK157978C publication Critical patent/DK157978C/en

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
- C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen
- 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
- C08G69/40—Polyamides containing oxygen in the form of ether groups

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)
Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Polyamides (AREA)

DK240274A 1973-05-07 1974-05-02 MEMBRANE OF THE ANISOTROPIC GEL TYPE OF POLYPIPERAZINAMIDES AND PROCEDURES FOR PRODUCING THEREOF DK157978C (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT2377073		1973-05-07
IT23770/73A IT987156B (en)	1973-05-07	1973-05-07	POLYPERAZINAMIDES COPOLIPERAZI NAMIDES AND MEMBRANES FOR OSMOSIS IN VERSA BASED ON SUCH POLYMERIC MATERIALS

Publications (2)

Publication Number	Publication Date
DK157978B DK157978B (en)	1990-03-12
DK157978C true DK157978C (en)	1990-08-27

Family

ID=11209824

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK240274A DK157978C (en)	1973-05-07	1974-05-02	MEMBRANE OF THE ANISOTROPIC GEL TYPE OF POLYPIPERAZINAMIDES AND PROCEDURES FOR PRODUCING THEREOF

Country Status (11)

Country	Link
JP (1)	JPS575565B2 (en)
BE (1)	BE814603A (en)
CA (1)	CA1029496A (en)
DE (1)	DE2421353A1 (en)
DK (1)	DK157978C (en)
ES (1)	ES426000A1 (en)
FR (1)	FR2228805B1 (en)
GB (1)	GB1422767A (en)
IL (1)	IL44761A (en)
IT (1)	IT987156B (en)
NL (1)	NL176176C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1040274B (en) *	1975-07-30	1979-12-20	Consiglio Nazionale Ricerche	PROCEDURE FOR PREPARATION OF ANISOTROPIC MEMBRANES SUPPORTED FOR REVERSE OSMOSIS BASED ON SYNTHETIC POLYAMIDES
US4433117A (en) *	1982-03-23	1984-02-21	Kuraray Co., Ltd.	Copolyesteramide and production of the same

1973
- 1973-05-07 IT IT23770/73A patent/IT987156B/en active
1974
- 1974-05-02 NL NLAANVRAGE7405900,A patent/NL176176C/en not_active IP Right Cessation
- 1974-05-02 DK DK240274A patent/DK157978C/en active
- 1974-05-03 IL IL44761A patent/IL44761A/en unknown
- 1974-05-03 DE DE2421353A patent/DE2421353A1/en not_active Withdrawn
- 1974-05-04 JP JP4929974A patent/JPS575565B2/ja not_active Expired
- 1974-05-06 BE BE143969A patent/BE814603A/en unknown
- 1974-05-06 ES ES426000A patent/ES426000A1/en not_active Expired
- 1974-05-06 FR FR7415547A patent/FR2228805B1/fr not_active Expired
- 1974-05-07 GB GB1994674A patent/GB1422767A/en not_active Expired
- 1974-05-07 CA CA199,175A patent/CA1029496A/en not_active Expired

Also Published As

Publication number	Publication date
ES426000A1 (en)	1976-11-01
GB1422767A (en)	1976-01-28
NL176176C (en)	1985-03-01
NL7405900A (en)	1974-11-11
FR2228805A1 (en)	1974-12-06
IL44761A0 (en)	1974-07-31
IL44761A (en)	1977-10-31
FR2228805B1 (en)	1976-12-17
JPS5081978A (en)	1975-07-03
DK157978B (en)	1990-03-12
NL176176B (en)	1984-10-01
JPS575565B2 (en)	1982-01-30
CA1029496A (en)	1978-04-11
DE2421353A1 (en)	1974-11-21
IT987156B (en)	1975-02-20
BE814603A (en)	1974-11-06

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