Title:
【発明の名称】高分子多孔性中空繊維製造方法及びこれに用いる装置
Document Type and Number:
Japanese Patent JP2981752
Kind Code:
B2
Abstract:
A method of making a porous polymeric material by heating a mixture of a thermoplastic polymer and a cationic or non-ionic surfactant having a hydrophilic-lipophilic balance range of 4.0 to 6.0 to a temperature and for a time sufficient for the polymer and surfactant to mutually dissolve. The mixture is then cooled to a temperature so that non-equilibrium liquid-liquid phase separation takes place to form a bi-continuous matrix of the polymer and surfactant so that the polymer and surfactant form two intermingled separate phases of large interfacial surface area. The surfactant is then removed from the polymer. The porous polymeric material produced by the above method has a lacey or filamentous structure consisting of a plurality of polymer strands connected together at spaced apart locations along each strand.
Inventors:
KOTSUPU KURINTON BAAJIRU
SUTORIITON ROBAATO JON UIRIAMU
KOO HOORU SO HOTSUKU
SUTORIITON ROBAATO JON UIRIAMU
KOO HOORU SO HOTSUKU
Application Number:
JP51161889A
Publication Date:
November 22, 1999
Filing Date:
November 10, 1989
Export Citation:
Assignee:
MENTEITSUKU LTD
International Classes:
B01D67/00; B01D69/08; B01D71/26; B29C47/00; C08J9/28; D01D5/24; D01F2/28; D01F6/00; D01F6/06; (IPC1-7): D01D5/24; D01F6/00
Domestic Patent References:
| JP5891805A | ||||
| JP5749467A | ||||
| JP62500385A |
Attorney, Agent or Firm:
Akira Kono