Title:
【発明の名称】紡糸方法及びその製品
Document Type and Number:
Japanese Patent JP2941944
Kind Code:
B2
Abstract:
A significant increase in the rate of production of high quality symmetrical microporous hollow fibers can be obtained by a selection of raw materials, equipement and processing conditions. In particular, selection of polymer concentrates, precipitating solutions and fiber die dimensions are important to attaining production speeds greater than 30 meters per minute. In the processes, a polymer dope solution (12) is filtered through a filter press (16) and delivered to a dry-jet wet spinning spinneret apparatus (20) along with a precipitating solution (22). The solutions (12, 22) are spun from the spinneret apparatus (20) to form a hollow fiber which is quenched and wound on a take-up wheel (40). The product of the processes of the invention is a high quality fiber that can be used in a variety of medical end uses including renal dialysis, blood filtering, etc.
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Inventors:
UENTOHOORUDO RANDARU EMU
REJIN ROBAATO EFU
HOORU ROBAATO TEII SEKANDO
PIGOTSUTO DANIERU TEII
KOSENCHINO RUIIZU SHII
REJIN ROBAATO EFU
HOORU ROBAATO TEII SEKANDO
PIGOTSUTO DANIERU TEII
KOSENCHINO RUIIZU SHII
Application Number:
JP50970792A
Publication Date:
August 30, 1999
Filing Date:
March 30, 1992
Export Citation:
Assignee:
MINTETSUKU CORP
International Classes:
B01D39/16; B01D69/08; B01D71/64; B29C48/05; B01D71/68; B29C48/09; B29C48/10; B29C48/21; D01D5/24; D01F6/00; D01F6/76; D01F6/94; (IPC1-7): D01F6/76; B01D69/08; D01D5/24; D01F6/00
Domestic Patent References:
| JP6193801A | ||||
| JP199617A | ||||
| JP2151636A | ||||
| JP152814A | ||||
| JP1189302A |
Attorney, Agent or Firm:
Kunihiko Ohashi