Title:
FILTER, FILTER LAMINATE, AND FIBER PRODUCT COMPRISING FILTER OR FILTER LAMINATE
Document Type and Number:
WIPO Patent Application WO/2014/142275
Kind Code:
A1
Abstract:
A filter which has a good balance between trapping properties and air permeability is provided by a filter that is formed of a polypropylene resin composition satisfying the following conditions (1)-(3).
(1) The melt flow rate is 10-2,000 g/10 minutes.
(2) The melting endotherm (∆H) as measured by a differential scanning calorimeter is 50-95 J/g.
(3) A polypropylene (A) having a [mmmm] of 20-60% by mole is contained.
Inventors:
TAKEBE TOMOAKI (JP)
MINAMI YUTAKA (JP)
KOORI YOHEI (JP)
MINAMI YUTAKA (JP)
KOORI YOHEI (JP)
Application Number:
PCT/JP2014/056781
Publication Date:
September 18, 2014
Filing Date:
March 13, 2014
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
B01D39/16; B03C3/28; C08F10/06; C08L23/12; D04H3/16
Domestic Patent References:
| WO2011090132A1 | 2011-07-28 | |||
| WO2011030893A1 | 2011-03-17 | |||
| WO2006051708A1 | 2006-05-18 |
Foreign References:
| JP2013040412A | 2013-02-28 | |||
| JP2002201560A | 2002-07-19 |
Other References:
A. ZAMBELLI ET AL., MACROMOLECULES, vol. 8, 1975, pages 687
A. ZAMBELLI ET AL., MACROMOLECULES, vol. 6, 1973, pages 925
See also references of EP 2974778A4
A. ZAMBELLI ET AL., MACROMOLECULES, vol. 6, 1973, pages 925
See also references of EP 2974778A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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