US 11,731,406 B2
Laminate and stand-up pouch
Shinji Nakanishi, Tokyo (JP); Kohei Oura, Tokyo (JP); and Yoshitaka Matsumura, Tokyo (JP)
Assigned to MITSUBISHI CHEMICAL CORPORATION, Tokyo (JP)
Filed by Mitsubishi Chemical Corporation, Tokyo (JP)
Filed on May 10, 2021, as Appl. No. 17/315,984.
Application 17/315,984 is a continuation of application No. PCT/JP2019/044640, filed on Nov. 14, 2019.
Claims priority of application No. 2018-214871 (JP), filed on Nov. 15, 2018.
Prior Publication US 2021/0260856 A1, Aug. 26, 2021
Int. Cl. B32B 27/08 (2006.01); B32B 1/00 (2006.01); B32B 7/12 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B65D 65/40 (2006.01); B65D 75/00 (2006.01)
CPC B32B 27/08 (2013.01) [B32B 1/00 (2013.01); B32B 7/12 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B65D 65/40 (2013.01); B65D 75/008 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2270/00 (2013.01); B32B 2274/00 (2013.01); B32B 2307/31 (2013.01); B32B 2307/54 (2013.01); B32B 2307/7244 (2013.01); B32B 2439/40 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A laminate comprising:
a protection layer;
a barrier layer; and
a heat sealing layer,
wherein the barrier layer has a polyamide-based resin layer and an ethylene-vinyl alcohol-based copolymer layer,
the heat sealing layer contains a polypropylene as a main component,
when an orthogonal direction to a thickness direction of the laminate is used as a reference direction, a product of a tensile elastic modulus A in the reference direction, a tensile elastic modulus B in a direction forming an angle of 45° with respect to the reference direction, and a tensile elastic modulus C in a direction forming an angle of 90° with respect to the reference direction is 0.22 (GPa)3 or less, and
a value of the ratio of the tensile elastic modulus B to the tensile elastic modulus A, a value of the ratio of the tensile elastic modulus C to the tensile elastic modulus A, and a value of the ratio of the tensile elastic modulus C to the tensile elastic modulus B are each 0.1 to 10,
wherein the polyamide-based resin layer contains nylon 6.