公开(公告)号：US20240391224A1

公开(公告)日：2024-11-28

申请号：US18797393

申请日：2024-08-07

Applicant: TOPPAN INC.

Inventor： Kenta OSAWA

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/16 ,  B32B27/32 ,  B32B37/24

Abstract: A gas barrier film includes: a substrate mainly composed of polyethylene or polypropylene; a gas barrier layer formed on the substrate; and a cover layer formed on the gas barrier layer, a surface of the substrate on which the gas barrier layer is formed has an element ratio O/C between oxygen and carbon of 0.03 or more.

公开(公告)号：US20230382090A1

公开(公告)日：2023-11-30

申请号：US18230552

申请日：2023-08-04

Applicant: TOPPAN INC.

Inventor： Ryosuke KOGA ,  Junpei HAYASHI ,  Tetsuo SATAKE ,  Kenta OSAWA

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/30 ,  B32B27/32 ,  B32B27/16 ,  B65D65/40

CPC classification number: B32B27/08 ,  B32B7/12 ,  B32B27/306 ,  B32B27/32 ,  B32B27/16 ,  B65D65/40 ,  B32B2307/7242 ,  B32B2307/31 ,  B32B2307/748 ,  B32B2255/10 ,  B32B2255/20 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2250/03 ,  B32B2250/246 ,  B32B2307/518 ,  B32B2250/242 ,  B65D2565/387

Abstract: A gas barrier film includes a substrate containing polypropylene or polyethylene as a main ingredient, the substrate having a first surface and a second surface opposite the first surface; and a gas barrier layer arranged to face the first surface of the substrate. The second surface of the substrate has a wetting tension of 21 mN/m or more.

公开(公告)号：US20220288902A1

公开(公告)日：2022-09-15

申请号：US17829976

申请日：2022-06-01

Applicant: TOPPAN INC.

Inventor： Yuki HAYASHI ,  Junpei HAYASHI ,  Kenta OSAWA ,  Takayuki TANI

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/32 ,  C23C14/08 ,  C23C14/20 ,  C23C14/30 ,  B65D65/40 ,  B65D65/42

Abstract: A gas barrier film includes a substrate containing polypropylene as a main component, a gas barrier layer on a first surface of the substrate, and a coating layer on the gas barrier layer. Infrared spectroscopy of the first surface indicates a peak intensity (I1) at 1360 to 1390 cm−1 and a peak intensity (I2) at 1440 to 1480 cm−1 in a ratio satisfying the formula: (I1)/I(2)≤1.65.

公开(公告)号：US20240149572A1

公开(公告)日：2024-05-09

申请号：US18544875

申请日：2023-12-19

Applicant: TOPPAN INC.

Inventor： Ryota TANAKA ,  Haruka OMORI ,  Kenta OSAWA ,  Kenji MATSUHISA

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/32 ,  B32B33/00

CPC classification number: B32B27/08 ,  B32B7/12 ,  B32B27/32 ,  B32B33/00 ,  B32B2250/02 ,  B32B2307/31 ,  B32B2307/42 ,  B32B2307/7242 ,  B32B2553/00

Abstract: A gas barrier film includes a base material containing a polyethylene as a main resin component and an inorganic oxide layer formed on a first surface side of the base material. The birefringence AN of the first surface calculated based on measurement by a parallel Nicol rotation method is 0 or more and 0.007 or less, and the proportion of the polyethylene in the entire gas barrier film is 90 mass % or more.

公开(公告)号：US20220153000A1

公开(公告)日：2022-05-19

申请号：US17588551

申请日：2022-01-31

Applicant: TOPPAN INC.

Inventor： Kenta OSAWA

IPC: B32B27/08 ,  B32B27/32 ,  B32B27/16 ,  B32B7/12 ,  B32B37/24

Abstract: A gas barrier film includes: a substrate mainly composed of polyethylene or polypropylene; a gas barrier layer formed on the substrate; and a cover layer formed on the gas barrier layer; a surface of the substrate on which the gas barrier layer is formed has an element ratio O/C between oxygen and carbon of 0.03 or more.