Title:
STRETCHED POROUS FILM, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/175878
Kind Code:
A1
Abstract:
Provided is a stretched porous film comprising a resin composition which includes 80-200 parts by mass of an inorganic filler per 100 parts by mass of a polyolefin which comprises 85-50 mass% of a linear low-density polyethylene, 10-35 mass% of a branched low-density polyethylene, and 5-25 mass% of polypropylene. The stretched porous film has a strength at 5% elongation in the machine direction of at least 3.5 N/25mm, a moisture vapour transmission rate of at least 2000 g/m2∙24h, and a mass per unit area of 10-35 g/m2. The stretched porous film exhibits excellent pitch printing suitability and film texture.
Inventors:
TANAKA NOBUYUKI (JP)
Application Number:
PCT/JP2017/015207
Publication Date:
October 12, 2017
Filing Date:
April 06, 2017
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
International Classes:
C08J9/00; B29C67/20; C08K3/00; C08L23/04; C08L23/10
Domestic Patent References:
| WO2015186532A1 | 2015-12-10 | |||
| WO2015186809A1 | 2015-12-10 | |||
| WO1999045063A1 | 1999-09-10 |
Foreign References:
| JP2015229722A | 2015-12-21 | |||
| JP2013154585A | 2013-08-15 | |||
| JP2015123318A | 2015-07-06 | |||
| JP2002249622A | 2002-09-06 | |||
| JP2001294717A | 2001-10-23 | |||
| JP2002515367A | 2002-05-28 | |||
| JP2002307627A | 2002-10-23 | |||
| JP2002509496A | 2002-03-26 |
Attorney, Agent or Firm:
OHSHIMA, Masataka (JP)
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