Title:
POLYPROPYLENE RESIN COMPOSITION FOR MICROPOROUS FILM AND USE OF POLYPROPYLENE RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/034048
Kind Code:
A1
Abstract:
The present invention pertains to a polypropylene resin composition for a microporous film with which it is possible to reduce product defects because stabilization of film formation stabilizes pore formation and to obtain a film that can be suitably used as a separator, filtration membrane, separation membrane, and filter because the microporous film can be made thinner due to the high rigidity thereof. More specifically, the present invention pertains to a polypropylene resin composition for a microporous film, the polypropylene resin composition containing: 5-30 wt% of a polypropylene resin (X) that has a specific MFR, molecular weight distribution Mw/Mn by GPC, melt tension (MT), branching index g', and mm fraction of propylene unit triad chains by 13C-NMR, the polypropylene resin (X) satisfying specific conditions that pertain to gel and having a long-chain branched structure; and 70-95 wt% of a polypropylene resin (Y) other than the polypropylene resin (X), the polypropylene resin (Y) having a specific MFR.
Inventors:
KATSUNO SATOSHI (JP)
KITADE SHINICHI (JP)
KITADE SHINICHI (JP)
Application Number:
PCT/JP2017/022118
Publication Date:
February 22, 2018
Filing Date:
June 15, 2017
Export Citation:
Assignee:
JAPAN POLYPROPYLENE CORP (JP)
International Classes:
B01D71/26; C08J9/00; C08L23/12; H01M50/417
Domestic Patent References:
| WO2013125700A1 | 2013-08-29 | |||
| WO2013125702A1 | 2013-08-29 | |||
| WO2007046226A1 | 2007-04-26 |
Foreign References:
| JP2012102188A | 2012-05-31 | |||
| JP2013010890A | 2013-01-17 | |||
| JP2010265414A | 2010-11-25 | |||
| JP2012092213A | 2012-05-17 | |||
| JP2009275207A | 2009-11-26 |
Other References:
See also references of EP 3450489A4
Attorney, Agent or Firm:
ONO Makoto et al. (JP)
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