Title:
STRETCHABLE FILM
Document Type and Number:
WIPO Patent Application WO/2020/246536
Kind Code:
A1
Abstract:
This stretchable film (1, 2) has an elastomer layer (10) and surface layers (20, 22) provided on any one side or both sides of a first surface (10a) and a second surface (10b) of the elastomer layer (10), wherein: the surface layers (20, 22) each include calcium carbonate and at least one polypropylene-based resin selected from the group consisting of a block polypropylene that is a copolymer with ethylene and a random polypropylene that is a copolymer with ethylene; the content of the calcium carbonate in the surface layers (20, 22) is 10-75 mass% with respect to the total mass of the surface layers (20, 22); the thickness of the elastomer layer (10) is 20-55 μm; and the thickness of the surface layers (20, 22) is 0.4-5.0 μm.
Inventors:
HIRANO TATSUYA (JP)
MAEDA TAKAAKI (JP)
TANAKA AKIHIRO (JP)
MAEDA TAKAAKI (JP)
TANAKA AKIHIRO (JP)
Application Number:
PCT/JP2020/022079
Publication Date:
December 10, 2020
Filing Date:
June 04, 2020
Export Citation:
Assignee:
C I TAKIRON CORP (JP)
International Classes:
B32B25/08; B32B27/20; B32B27/32; C08K3/26; C08L23/16
Domestic Patent References:
| WO2016013577A1 | 2016-01-28 |
Foreign References:
| JP2018103439A | 2018-07-05 | |||
| JP2013014127A | 2013-01-24 | |||
| JP2013119583A | 2013-06-17 | |||
| JP2019106404A | 2019-06-27 | |||
| JP2016112878A | 2016-06-23 |
Other References:
See also references of EP 3981593A4
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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