Title:
プロピレン系重合体を含む延伸フィルム
Document Type and Number:
Japanese Patent JP7207997
Kind Code:
B2
Abstract:
To provide a stretched film including a propylene polymer excellent in dimensional stability and having high rigidity and high heat resistance by showing unconventional, extremely high and uniform tacticity.SOLUTION: The stretched film includes a propylene polymer satisfying the requirements (1)-(4): (1) a meso average chain length is 800-100,000; (2) a melt flow rate is 0.5-1000 g/10 minutes; (3) the ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) measured by GPC is 4.2-20; and (4) when the ratio of a component eluted at a temperature of 122°C or more by a temperature rise elution fractional measurement method is A wt.%, and the melt flow rate of the requirement (2) is Bg/10 minutes, the formula (I) is satisfied. 100≥A≥20×EXP(-0.01×B) ... (I)SELECTED DRAWING: None
Inventors:
Inukai Akihiro
Yasuhiro Kai
Naoya Noda
Kenji Michigami
Yasuhiro Kai
Naoya Noda
Kenji Michigami
Application Number:
JP2018245343A
Publication Date:
January 18, 2023
Filing Date:
December 27, 2018
Export Citation:
Assignee:
Prime Polymer Co., Ltd.
Mitsui Chemicals, Inc.
Mitsui Chemicals, Inc.
International Classes:
C08F10/06; C08J5/18; H01M50/409
Domestic Patent References:
| JP8198979A | ||||
| JP8003215A |
Foreign References:
| WO2015012324A1 | ||||
| WO2014065331A1 | ||||
| WO2019004418A1 |
Other References:
柳原 久嘉,外2名,高分子論文集,2002年,vol.59, no.6,p.364-370
Attorney, Agent or Firm:
Patent Attorney Corporation SS International Patent Office
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