US 12,071,295 B2
Laminate, blister pack, press-through package, and laminate manufacturing method
Hajime Okamoto, Tokyo (JP); and Toyoaki Suzuki, Tokyo (JP)
Assigned to FUJIMORI KOGYO CO., LTD., Tokyo (JP)
Filed by FUJIMORI KOGYO CO., LTD., Tokyo (JP)
Filed on Dec. 3, 2021, as Appl. No. 17/541,259.
Application 17/541,259 is a continuation of application No. 16/478,209, granted, now 11,220,390, previously published as PCT/IB2018/000005, filed on Jan. 15, 2018.
Claims priority of application No. 2017-010664 (JP), filed on Jan. 24, 2017.
Prior Publication US 2022/0089351 A1, Mar. 24, 2022
Int. Cl. B32B 1/00 (2024.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B65D 65/40 (2006.01); B65D 81/24 (2006.01); B65D 75/36 (2006.01); C08J 5/18 (2006.01)
CPC B65D 81/24 (2013.01) [B32B 1/00 (2013.01); B32B 27/30 (2013.01); B32B 27/32 (2013.01); B65D 65/40 (2013.01); B32B 2439/70 (2013.01); B32B 2439/80 (2013.01); B65D 75/36 (2013.01); C08J 5/18 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A laminate of a three-layer structure consisting of a substrate layer, an intermediate layer, and a fluorine-based resin layer in that order, wherein
said substrate layer contains polyethylene terephthalate,
said substrate layer has a thickness of 90 μm or more and 200 μm or less,
said intermediate layer consists of a linear low density polyethylene and a maleic anhydride-modified polyethylene,
a mixing ratio of the linear low density polyethylene and the maleic anhydride-modified polyethylene ([linear low density polyethylene]:[maleic anhydride-modified polyethylene]) based on mass is 20:80 to 50:50,
said intermediate layer has a thickness of 10 μm or more and 30 μm or less,
said fluorine-based resin layer consists of polychlorotrifluoroethylene,
said fluorine-based resin layer has a thickness of 40 μm or more and 150 μm or less, and
said laminate has a water vapor permeability of 0.5 g/m2/24 hours or less.