[go: up one dir, main page]

JPS57162609A - Dialyzing and filtration membrane made of cellulose and its production - Google Patents

Dialyzing and filtration membrane made of cellulose and its production

Info

Publication number
JPS57162609A
JPS57162609A JP56046346A JP4634681A JPS57162609A JP S57162609 A JPS57162609 A JP S57162609A JP 56046346 A JP56046346 A JP 56046346A JP 4634681 A JP4634681 A JP 4634681A JP S57162609 A JPS57162609 A JP S57162609A
Authority
JP
Japan
Prior art keywords
cellulose
film
org
soln
molecular weight
Prior art date
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.)
Granted
Application number
JP56046346A
Other languages
Japanese (ja)
Other versions
JPS6411322B2 (en
Inventor
Ryozo Hasegawa
Shohei Kamishiro
Nobuo Taneda
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.)
Teijin Ltd
Original Assignee
Teijin Ltd
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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP56046346A priority Critical patent/JPS57162609A/en
Publication of JPS57162609A publication Critical patent/JPS57162609A/en
Publication of JPS6411322B2 publication Critical patent/JPS6411322B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To provide a regenerated cellulose membrane suited for dialyzing filtration of blood by forming a film from a film-forming stock soln. consisting of cellulose ester, ≥2 kinds of org. liquids, and a water soluble org. compd., and saponifying this to regenerated cellulose with a caustic alkali soln.
CONSTITUTION: A film-forming stock soln. is prepd. from cellulose ester of 0.5W 15% water contents, such as cellulose diacetate, cellulose triacetate, nitrocellulose or the like, ≥2 kinds of org. liquids such as acetone, formic acid, methyl acetate, ethyl acetate or the like, and an org. compd. of ≥60 molecular weight, having ≥1 hydroxyl groups such as proply alcohol, butyl alcohol, allyl alcohol or the like. A film is formed from this stock soln., and is saponified to regenerated cellulose by caustic alkali soln. This membrane is of 0W10% rates of acylation or nitration, is cellulose II type crystal in crystal structure, is of 0.01W 0.05cm/min dialyzability for low molecular weight materials, is of 0.001W 0.01cm/min dialyzability for middle molecular weight materials and is of 1W 150m/m2.hr.mmHg ultrafiltration rates for water.
COPYRIGHT: (C)1982,JPO&Japio
JP56046346A 1981-03-31 1981-03-31 Dialyzing and filtration membrane made of cellulose and its production Granted JPS57162609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046346A JPS57162609A (en) 1981-03-31 1981-03-31 Dialyzing and filtration membrane made of cellulose and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046346A JPS57162609A (en) 1981-03-31 1981-03-31 Dialyzing and filtration membrane made of cellulose and its production

Publications (2)

Publication Number Publication Date
JPS57162609A true JPS57162609A (en) 1982-10-06
JPS6411322B2 JPS6411322B2 (en) 1989-02-23

Family

ID=12744574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046346A Granted JPS57162609A (en) 1981-03-31 1981-03-31 Dialyzing and filtration membrane made of cellulose and its production

Country Status (1)

Country Link
JP (1) JPS57162609A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138504A (en) * 1984-12-10 1986-06-26 Toyo Roshi Kk Membrane filter comprising regenerated cellulose
JP2005225770A (en) * 2004-02-10 2005-08-25 Japan Health Science Foundation Method for producing liposome using hollow fiber dialysis column
JP2014024064A (en) * 2006-03-02 2014-02-06 Seiichi Manabe Regenerated cellulose porous membrane for pore diffusion, and method of manufacturing the same
JP5416297B1 (en) * 2013-03-07 2014-02-12 由唯 久留米 Method for inhibiting browning of collodion membrane with controlled pore size by adding salicylic acid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52144416A (en) * 1976-05-25 1977-12-01 Teijin Ltd Hollow cellulose fibers
JPS54138615A (en) * 1978-04-13 1979-10-27 Mitsubishi Rayon Co Ltd Production of hollow regenerated cellulose fiber
JPS5536361A (en) * 1978-09-06 1980-03-13 Nippon Zeon Co Ltd Method of hydrolyzing hollow fiber of cellulose ester
JPS5536365A (en) * 1978-09-08 1980-03-13 Teijin Ltd Production of filament fabric with improved drapability
JPS55112308A (en) * 1979-02-19 1980-08-29 Nippon Zeon Co Ltd Hollow fiber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52144416A (en) * 1976-05-25 1977-12-01 Teijin Ltd Hollow cellulose fibers
JPS54138615A (en) * 1978-04-13 1979-10-27 Mitsubishi Rayon Co Ltd Production of hollow regenerated cellulose fiber
JPS5536361A (en) * 1978-09-06 1980-03-13 Nippon Zeon Co Ltd Method of hydrolyzing hollow fiber of cellulose ester
JPS5536365A (en) * 1978-09-08 1980-03-13 Teijin Ltd Production of filament fabric with improved drapability
JPS55112308A (en) * 1979-02-19 1980-08-29 Nippon Zeon Co Ltd Hollow fiber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138504A (en) * 1984-12-10 1986-06-26 Toyo Roshi Kk Membrane filter comprising regenerated cellulose
JP2005225770A (en) * 2004-02-10 2005-08-25 Japan Health Science Foundation Method for producing liposome using hollow fiber dialysis column
JP2014024064A (en) * 2006-03-02 2014-02-06 Seiichi Manabe Regenerated cellulose porous membrane for pore diffusion, and method of manufacturing the same
JP5416297B1 (en) * 2013-03-07 2014-02-12 由唯 久留米 Method for inhibiting browning of collodion membrane with controlled pore size by adding salicylic acid

Also Published As

Publication number Publication date
JPS6411322B2 (en) 1989-02-23

Similar Documents

Publication Publication Date Title
KR860003006A (en) Medical hard capsules and preparation method thereof
JPS57171428A (en) Preparation of coated solid preparation
IE42620L (en) Non-ionic x-ray contrast agent
KR880000088A (en) Sustained release formulation
DE69021738D1 (en) MEMBRANES FOR ABSORBENT PACKINGS.
GB1482914A (en) Semi-permeable polymeric membranes
EP1795255A3 (en) Cellulose acetate semipermeable membrane and process for producing same
US4097383A (en) Process for production of microporous sheet
KR890014104A (en) Pharmaceutical composition especially acting on the heart and cardiovascular system and its manufacturing process
JPS57162609A (en) Dialyzing and filtration membrane made of cellulose and its production
JPS5584503A (en) Preparing cellulose ester based selective permeable membrane
JPS555937A (en) Adhesive composition
EP0745423A3 (en) Improved process for making cellulose acetate semipermeable membranes and medical products therefrom
EP0252152A4 (en) Photosensitive emulsion for coating plastic film.
EP0128345A3 (en) Process for the manufacture of alkali-soluble polyvinyl alcohol, and use thereof
CA2068187A1 (en) Process for the manufacture of trifluoroacetaldehyde hydrate or trifluoroacetaldehyde hemiacetal
JPS52144416A (en) Hollow cellulose fibers
DD139212A1 (en) PROCESS FOR THE PREPARATION OF A NEW MEDICAMENT FROM ALPHA, ALPHA-DIPHENYL-ALPHA-ALKOXY ACETIC ACID 1-METHYLPIPERIDYL-4-ESTER DERIVATIVES
GB1324019A (en) Method of making reverse osmosis membranes
JPS57134414A (en) Preparation of sugar-coated tablet
GB1406213A (en) Ultrafiltration membranes and process for making same
GB1179238A (en) Semi-Permeable Membrane.
JPS56118418A (en) Production of polyester
JPS5339979A (en) Manufacture of semicpermeable cellulose acetate membrane
JPS5590615A (en) Regenerated cellulose hollow fiber