Title:
FILM AND PACKAGING CONTAINER
Document Type and Number:
WIPO Patent Application WO/2020/050245
Kind Code:
A1
Abstract:
Provided are a film which makes it possible to afford a packaging container having excellent bag-drop strength, and a packaging container having excellent bag-drop strength. The film is such that S1 determined from 0) to 7) is not less than 220 MPa and not more than 2000 MPa, wherein a nominal stress at 100% elongation in an MD direction during a tensile test under the condition of a tensile rate of 500 mm/min is not less than 11.0 MPa and not more than 30.0 MPa.
1) The tensile test is performed using a test piece at a velocity of 1 m/s on a high-velocity tensile testing machine.
7) S1 is determined by 7a) or 7b).
7a) During the tensile test 1), if the test piece is not broken at the point in time when a maximum principal strain is 2.0, S1 is determined according to expression (11).
Expression (11): S1=(p-q)/0.3
(in expression (11), p is the true stress (MPa) when the maximum principal strain is 2.0, and q is the true stress (MPa) when the maximum principal strain is 1.7).
Inventors:
OCHI NAOKO (JP)
OKAZUMI YUYA (JP)
OKAZUMI YUYA (JP)
Application Number:
PCT/JP2019/034556
Publication Date:
March 12, 2020
Filing Date:
September 03, 2019
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C08J5/18; B32B7/02; G01N3/08
Foreign References:
| JPS6225140A | 1987-02-03 | |||
| JPH07228731A | 1995-08-29 | |||
| JPH04224844A | 1992-08-14 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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