Title:
POLYPROPYLENE-BASED STRETCHED SEALANT FILM AND FILM LAMINATE USING THE SAME
Document Type and Number:
Japanese Patent JP2018079583
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a polypropylene-based stretched sealant film excellent in automatic packaging suitability, easy-tearing properties and strength by improving blending with a resin raw material of the sealant film, and to provide a film laminate.SOLUTION: A polypropylene-based stretched sealant film 1 has a base material layer 10 and a sealant layer 20 and has a stretching ratio in an uniaxial direction of 3-10 times, where the base material layer of the polypropylene-based stretched sealant film 1 contains 50-85 wt.% of a polypropylene-based resin (A) and 15-50 wt.% of a thermoplastic elastomer (B), the polypropylene-based resin (A) contains a propylene homopolymer, a propylene-ethylene random copolymer and the like, the thermoplastic elastomer (B) has a density of 0.860-0.895 g/cmand a melt flow rate of 0.5-10 g/10 min, and is any one of an olefinic elastomer resin being a random copolymer with α-olefin, or a styrenic elastomer resin.SELECTED DRAWING: Figure 1
Inventors:
ISHIGURO KAZUYA
YURUTSUME HIROSHI
MAKITA KANAKO
OKADA KAZUYUKI
YURUTSUME HIROSHI
MAKITA KANAKO
OKADA KAZUYUKI
Application Number:
JP2016221655A
Publication Date:
May 24, 2018
Filing Date:
November 14, 2016
Export Citation:
Assignee:
FUTAMURA CHEMICAL CO LTD
International Classes:
B32B27/32; B32B15/085; C08L23/14
Domestic Patent References:
| JPS5294381A | 1977-08-08 | |||
| JP2004358683A | 2004-12-24 | |||
| JP2015171778A | 2015-10-01 | |||
| JP2014148104A | 2014-08-21 | |||
| JP2013223935A | 2013-10-31 | |||
| JP2001219518A | 2001-08-14 | |||
| JPH0976431A | 1997-03-25 |
Attorney, Agent or Firm:
Noriaki Goto
Yuki Kito
Daiki Kato
Yuki Kito
Daiki Kato