Title:
PROPYLENE-BASED RESIN COMPOSITION, FILM COMPRISING SAME, AND USES THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/189486
Kind Code:
A1
Abstract:
[Problem] To provide: a propylene-based resin composition capable of giving films which are highly excellent in terms of not only low-temperature impact resistance and heat-seal strength after retortion but also rigidity and transparency and which are suitable for use as high-retortion CPP; a film comprising the propylene-based resin composition; and a laminate and a retort pouch.
[Solution] The propylene-based resin composition of the present invention comprises 75-95 mass% propylene/ethylene block copolymer (A) satisfying requirements (a-1) to (a-4) and 5-25 mass% specific ethylene/α-olefin copolymer (B).
(a-1) The MFR is 2.0-8.0 g/10 min. (a-2) The content of para-xylene solubles is 15 mass% or higher, and the content (mass%) of para-xylene solubles and the content (mass%) of n-decane solubles satisfy specific relationship (1). (a-3) The content of ethylene-derived structural units in the para-xylene solubles is 20-30 mass%. (a-4) The isotactic pentad content in para-xylene insolubles is 94 mol% or higher.
Inventors:
KIMURA TOKUTARO (JP)
KOJIMA TERUHISA (JP)
SHIMIZU HIROKI (JP)
KOJIMA TERUHISA (JP)
SHIMIZU HIROKI (JP)
Application Number:
PCT/JP2019/013399
Publication Date:
October 03, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
PRIME POLYMER CO LTD (JP)
International Classes:
C08L53/00; B32B27/32; B65D65/40; B65D81/24; C08F297/08; C08J5/18; C08L23/08
Foreign References:
| JP2012082356A | 2012-04-26 | |||
| JP2001098139A | 2001-04-10 | |||
| JP2003183462A | 2003-07-03 | |||
| JP2003096251A | 2003-04-03 | |||
| JP2000256532A | 2000-09-19 | |||
| JP2002088170A | 2002-03-27 | |||
| JP2003052791A | 2003-02-25 | |||
| JP2000007853A | 2000-01-11 | |||
| JP2001288330A | 2001-10-16 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Download PDF: