Title:
ポリプロピレン系縦一軸延伸フィルム及びフィルム積層体並びに袋状物
Document Type and Number:
Japanese Patent JP6898799
Kind Code:
B2
Abstract:
To provide a polypropylene vertically uniaxially stretched film which has good heat sealability and cutting property in tearing and also achieves good appearance, a film laminate using the film, and a bag-like object.SOLUTION: A polypropylene film includes a base material layer part 10 and a sealant layer part 20 and has a stretching ratio in a vertically uniaxial direction of 3-10 times, where the base material layer part contains a polypropylene resin (A), the sealant layer part has a composition such that a polypropylene resin (B) is 2-70 wt.% and an olefin elastomer (C) is 98-30 wt.%, and the olefin elastomer (C) has a density of 0.860-0.895 g/cmand a melt flow rate (190°C and load of 2.16 kg) of 0.5-10 g/10 min and is a random copolymer of any one of ethylene, propylene and 1-butene and α-olefin (excluding same kind as monomer) having 2 to 8 carbon atoms.SELECTED DRAWING: Figure 1
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Inventors:
Kanako Makita
Hiroshi Yumezume
Kazuyuki Okada
Hiroshi Yumezume
Kazuyuki Okada
Application Number:
JP2017137851A
Publication Date:
July 07, 2021
Filing Date:
July 14, 2017
Export Citation:
Assignee:
Futamura Chemical Co., Ltd.
International Classes:
B32B27/32; B65D30/02; B65D65/40; C08L23/06; C08L23/10
Domestic Patent References:
| JP2012500307A | ||||
| JP2014141302A |
Foreign References:
| US20100055429 | ||||
| US20120094042 | ||||
| WO2012063914A1 | ||||
| US20130202864 | ||||
| WO2010104026A1 |
Attorney, Agent or Firm:
Noriaki Goto
Yuki Kito
Daiki Kato
Yuki Kito
Daiki Kato