Title:
PROPYLENE-BASED POLYMER COMPOSITION, BIAXIALLY STRETCHED FILM, AND PACKAGING BAG
Document Type and Number:
WIPO Patent Application WO/2023/139993
Kind Code:
A1
Abstract:
The present invention provides a propylene-based polymer composition that is useful in production of a biaxially stretched film that has excellent dimensional stability at high temperatures. The propylene-based polymer composition comprises two or more types of propylene-based polymer and satisfies requirements (1) and (2) below. (1) The amount of components having a molecular weight of not more than 100,000, as measured by gel permeation chromatography, is 30-50 mass%. (2) The amount of components having a molecular weight of 100,000-800,000, as measured by gel permeation chromatography, is 35-52 mass%.
Inventors:
TAKANO MASAKI (JP)
Application Number:
PCT/JP2022/046428
Publication Date:
July 27, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C08L23/10; B29C55/12; B65D65/02; C08F10/06; C08J5/18; C08K5/00; C08L57/00
Domestic Patent References:
| WO2020137790A1 | 2020-07-02 |
Foreign References:
| JP2014051658A | 2014-03-20 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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