JPS57100143A - Preparation of porous film or filament - Google Patents

Preparation of porous film or filament

Info

Publication number
JPS57100143A
JPS57100143A JP17774880A JP17774880A JPS57100143A JP S57100143 A JPS57100143 A JP S57100143A JP 17774880 A JP17774880 A JP 17774880A JP 17774880 A JP17774880 A JP 17774880A JP S57100143 A JPS57100143 A JP S57100143A
Authority
JP
Japan
Prior art keywords
solvent
polymers
soluble
solutions
polymer
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.)
Pending
Application number
JP17774880A
Other languages
Japanese (ja)
Inventor
Yoshikazu Kondo
Toshihiro Yamamoto
Ryuji Yamamoto
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.)
Kanebo Synthetic Fibers Ltd
Kanebo Ltd
Kanebo Gohsen Ltd
Original Assignee
Kanebo Synthetic Fibers Ltd
Kanebo Ltd
Kanebo Gohsen 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 Kanebo Synthetic Fibers Ltd, Kanebo Ltd, Kanebo Gohsen Ltd filed Critical Kanebo Synthetic Fibers Ltd
Priority to JP17774880A priority Critical patent/JPS57100143A/en
Publication of JPS57100143A publication Critical patent/JPS57100143A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: To prepare easily a film or filament of porous structure having improved performances and mechanical strength, by dissolving respectively polymers having different solubilities in solvents which are slightly soluble but compatible each othr to give solutions, blending and dispersing the solutions, followed by molding and drawing.
CONSTITUTION: Solutions of polymers having different solubilities respectively dissolved in at least two solvents which are slightly soluble but compatible each other, for example, one solvent is water or an aqueous solvent, e.g., an aqueous solution of inorganic salt. etc., and the other solvent is an organic solvent, e.g., saturated hydrocarbon, etc. are dispersed and blended, molded, and drawn to form porous structure having pores at the interface of the polymers. A polymer, e.g., acrylic type polymer, cellulose type derivative, etc. soluble in an aqueous solvent, and a polymer, e.g., rubber, polyester, etc. substantially in-soluble in a aqueous solvent are used as the polymers. The molding is carried out by wet molding followed by removal of the solvent, and the drawing is monoazxil or biaxial stretching in a draw ratio of at least 1.05.
COPYRIGHT: (C)1982,JPO&Japio
JP17774880A 1980-12-15 1980-12-15 Preparation of porous film or filament Pending JPS57100143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17774880A JPS57100143A (en) 1980-12-15 1980-12-15 Preparation of porous film or filament

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17774880A JPS57100143A (en) 1980-12-15 1980-12-15 Preparation of porous film or filament

Publications (1)

Publication Number Publication Date
JPS57100143A true JPS57100143A (en) 1982-06-22

Family

ID=16036432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17774880A Pending JPS57100143A (en) 1980-12-15 1980-12-15 Preparation of porous film or filament

Country Status (1)

Country Link
JP (1) JPS57100143A (en)

Similar Documents

Publication Publication Date Title
JPS5416378A (en) Polysulfone semipermeable membrane
JPS54145379A (en) Aromatic polysulfone hollow fiber semipermeable membrane
NL7612633A (en) POLYMER COMPOSITIONS USE FOR MEMBRANES.
JPS54107949A (en) Solution of fluorine-containing polymer bearing carboxyl group as side chain
GB1121119A (en) Improvements in nylon membrane filters
JPS53149181A (en) Semipermeable membrane
KR870007224A (en) Hydrophilic porous membrane and its manufacturing method
ATE197321T1 (en) SPONGE CLOTH AND METHOD FOR PRODUCING THE SAME
EP0142973A3 (en) Membranes
JPS57100143A (en) Preparation of porous film or filament
JPS5330989A (en) Semipermeable membrane and its preparation
JPS52152877A (en) Membrane of ethylene-vinyl alcohol copolymer having excellent permeability and its production method
JPS536627A (en) Hollow fibers
JPS5691815A (en) Manufacture of ultrafiltration film
JPS55102416A (en) Preparation of separated film
FI913235A0 (en) FARING EQUIPMENT FRAMING SYSTEM WITH BLANKMING CELLS.
ATE197320T1 (en) SPONGE AND METHOD FOR PRODUCING THE SAME
JPS5534109A (en) Polyethylene glycol composition
JPS5653208A (en) Composite acrylic fiber and its production
JPS5382670A (en) Preparation of semipermeable membrane
JPS55155703A (en) Polysulfone-base separating membrane and its production
JPS5790028A (en) Production of microporous sheet
JPS55155704A (en) Hollow semipermeable membrane and its production
JPS5551816A (en) Production of hollow fiber of vinyl halide polymer
JPS5670805A (en) Preparation of selectively permeable membrane for treating organic liquid