Title:
LAMINATE AND PACKAGING BAG COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2020/022060
Kind Code:
A1
Abstract:
The present invention provides a packaging bag which even when formed from a laminate comprising a biaxially stretched PBT film having large distortion of the molecular orientation axis demonstrates excellent straight-line cuttability and does not tend to delaminate when torn. This laminate comprises: a biaxially stretched film substrate comprising a polyester resin composition containing 60% by weight or more of a polybutylene terephthalate resin; and a sealant film comprising a polyolefin resin composition containing 40 to 97% by weight of a propylene-ethylene block copolymer, 3 to 10% by weight of an ethylene-propylene copolymer elastomer, and 0 to 50% by weight of an ethylene-α-olefin random copolymer. The laminate has a straight-line cuttability in the longitudinal direction of 5 mm or less.
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Inventors:
TOMATSU WAKATO (JP)
GOTO TAKAMICHI (JP)
NISHI TADASHI (JP)
GOTO TAKAMICHI (JP)
NISHI TADASHI (JP)
Application Number:
PCT/JP2019/027293
Publication Date:
January 30, 2020
Filing Date:
July 10, 2019
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/36; B32B27/32; B65D30/02
Domestic Patent References:
| WO2014157151A1 | 2014-10-02 |
Foreign References:
| JP2018058356A | 2018-04-12 | |||
| JP2018020844A | 2018-02-08 | |||
| JP2014141302A | 2014-08-07 | |||
| JP5790497B2 | 2015-10-07 | |||
| JP2012500307A | 2012-01-05 | |||
| JP2014141302A | 2014-08-07 | |||
| JP2018020844A | 2018-02-08 | |||
| JP2000186159A | 2000-07-04 |
Other References:
"2. Strength test method", SPECIFICATIONS AND STANDARDS FOR FOOD, FOOD ADDITIVES
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