US Patent No. 10,336,044


Patent No. 10,336,044
Issue Date July 02, 2019
Title Laminated Film And Packaging Bag
Inventorship Tomokazu Murase, Tokyo (JP)
Junpei Hayashi, Tokyo (JP)
Shigekazu Yasutake, Tokyo (JP)
Ryukichi Matsuo, Tokyo (JP)
Assignee TOPPAN PRINTING CO., LTD., Tokyo (JP)

Claim of US Patent No. 10,336,044

1. A laminated film, comprising:a resin substrate;
a coating layer on the resin substrate; and,
a deposited thin film layer in between the resin substrate and the coating layer, the deposited thin film layer contains a silicon oxide and has a thickness of 5 to 100 nm,
wherein the coating layer contains a water-soluble polymer, at least one of a silane coupling agent and a hydrolysate thereof, at least one of a metal alkoxide and a hydrolysate thereof, and an inorganic layered compound, and
wherein the content of the inorganic layered compound in the coating layer is 2 to 10 mass %.