Title:
ポリオレフィン系分割型複合繊維とこれを用いた繊維集合物及び電池セパレータ、並びにその製造方法
Document Type and Number:
Japanese Patent JP5560324
Kind Code:
B2
Abstract:
A polyolefin-based split-type conjugate fiber according to the present invention is a polyolefin-based split-type conjugate fiber obtained by composite spinning including a first component containing a polypropylene-based resin and a second component containing a polyolefin-based resin, wherein the first component contains, as a primary component, a polypropylene resin having a Q value (the ratio between the weight average molecular weight Mw and the number average molecular weight Mn) of 6 or greater and a melt flow rate according to JIS K 7210 (MFR at a measurement temperature of 230°C under a load of 2.16 kgf (21.18 N)) of 5 g/10 min or greater and less than 23 g/10 min, and the first component and the second component are adjacent to each other in a cross section of the polyolefin-based split-type conjugate fiber. Also, the polyolefin-based split-type conjugate fiber of the present invention can be obtained by melt spinning the first component and the second component by using a split type conjugate nozzle and drawing the resulting fiber.
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Inventors:
Tatsunobu Kida
Application Number:
JP2012508358A
Publication Date:
July 23, 2014
Filing Date:
March 30, 2011
Export Citation:
Assignee:
DAIWABO Holdings, Inc.
DAIWABO ウポリ tech incorporated company
DAIWABO ウポリ tech incorporated company
International Classes:
D01F8/06; D04H1/4291; D04H1/4382; D04H1/541; H01M50/403; H01M50/406; H01M50/417; H01M50/42; H01M50/423; H01M50/429; H01M50/494
Domestic Patent References:
| JP2001192936A | 2001-07-17 | |||
| JP2001279531A | 2001-10-10 | |||
| JP2001049529A | 2001-02-20 | |||
| JP2001011764A | 2001-01-16 | |||
| JP2000192335A | 2000-07-11 | |||
| JP2002220740A | 2002-08-09 | |||
| JP2001192936A | 2001-07-17 | |||
| JP2001279531A | 2001-10-10 | |||
| JP2001049529A | 2001-02-20 | |||
| JP2001011764A | 2001-01-16 | |||
| JP2000192335A | 2000-07-11 |
Foreign References:
| WO2009011346A1 | 2009-01-22 | |||
| WO2010050407A1 | 2010-05-06 | |||
| WO2009011346A1 | 2009-01-22 | |||
| WO2010050407A1 | 2010-05-06 |
Attorney, Agent or Firm:
Patent business corporation Ikeuchi and Sato and partners