Title:
NON-STRETCHED FILM COMPRISING PROPYLENE POLYMER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/090201
Kind Code:
A1
Abstract:
The purpose of the present invention is to obtain a non-stretched film having improved rigidity. The present invention relates to a non-stretched film comprising a propylene polymer composition that contains: 1-40 mass% of a propylene polymer (A) which contains 20-50 mass% of a propylene polymer (a1) having a limiting viscosity [η] of 10-12 dl/g as measured at 135°C in a tetralin solvent and 50-80 mass% of a propylene polymer (a2) having a limiting viscosity [η] of 0.5-1.5 dl/g as measured at 135°C in a tetralin solvent (where the combined amount of (a1) and (a2) is 100 mass%); and 60-99 mass% of a specific propylene homopolymer (B) (where the combined amount of (A) and (B) is 100 mass%).
Inventors:
OKAWA TOMOYA (JP)
KIMURA TOKUTARO (JP)
SHIMIZU HIROKI (JP)
AMANO TAIGA (JP)
BIRUKAWA JUN (JP)
MIZUKAWA TOMOAKI (JP)
KIMURA TOKUTARO (JP)
SHIMIZU HIROKI (JP)
AMANO TAIGA (JP)
BIRUKAWA JUN (JP)
MIZUKAWA TOMOAKI (JP)
Application Number:
PCT/JP2022/041517
Publication Date:
May 25, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
PRIME POLYMER CO LTD (JP)
International Classes:
C08J5/18; C08F10/06; C08F210/06; C08L23/10; C08L23/16
Domestic Patent References:
| WO2021025142A1 | 2021-02-11 | |||
| WO2021025143A1 | 2021-02-11 | |||
| WO2005097842A1 | 2005-10-20 |
Foreign References:
| JP2019137847A | 2019-08-22 | |||
| JP2001302858A | 2001-10-31 | |||
| JP2020158652A | 2020-10-01 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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