Patent ID: 11878494
Assignee: TOYOBO CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC B

Claim 0:
1. A gas barrier polyamide film, comprising a stretched polyamide film,
wherein the stretched polyamide film comprises A Layer: a base layer and B Layer: an easily adhesive layer on at least one surface of the A Layer,
C Layer: an inorganic thin film layer is laminated on the surface of the B Layer in the stretched polyamide film,
the A Layer comprises 65 mass % or more of Polyamide 6,
the B Layer consists of 60 to 100 mass % of a Polyamide 6 copolymer and 0 to 40 mass % of Polyamide 6,
a ratio of a copolymer component in the Polyamide 6 copolymer is 3 to 35 mass %,
the Polyamide 6 copolymer is Polyamide 6/66 copolymer, Polyamide 6/12 copolymer, Polyamide 6/610 copolymer, or Polyamide 6/11 copolymer, and
the A Layer, the B Layer, and the C Layer are laminated in the order of A Layer/B Layer/C Layer or B Layer/A Layer/B Layer/C Layer.