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Gas Barrier Film, Laminate, And Packaging Material

Abstract: This gas barrier film comprises a substrate having polyethylene as the main resin component, and an inorganic oxide layer formed on a first surface side of the substrate. The birefringence ?N of a first surface, calculated on the basis of measurement by a parallel Nicol rotation method, is 0-0.007, and the proportion of the polyethylene in the gas barrier film as a whole is at least 90 mass%.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
13 December 2023
Publication Number
40/2024
Publication Type
INA
Invention Field
POLYMER TECHNOLOGY
Status
Email
Parent Application

Applicants

TOPPAN INC.
5-1, Taito 1-chome, Taito-ku, Tokyo 1100016

Inventors

1. TANAKA Ryota
c/o TOPPAN INC., 5-1, Taito 1-chome, Taito-ku, Tokyo 1100016
2. OMORI Haruka
c/o TOPPAN INC., 5-1, Taito 1-chome, Taito-ku, Tokyo 1100016
3. OSAWA Kenta
c/o TOPPAN INC., 5-1, Taito 1-chome, Taito-ku, Tokyo 1100016
4. MATSUHISA Kenji
c/o TOPPAN INC., 5-1, Taito 1-chome, Taito-ku, Tokyo 1100016

Specification

Documents

Application Documents

# Name Date
1 202317085014-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [13-12-2023(online)].pdf 2023-12-13
2 202317085014-STATEMENT OF UNDERTAKING (FORM 3) [13-12-2023(online)].pdf 2023-12-13
3 202317085014-PROOF OF RIGHT [13-12-2023(online)].pdf 2023-12-13
4 202317085014-PRIORITY DOCUMENTS [13-12-2023(online)].pdf 2023-12-13
5 202317085014-POWER OF AUTHORITY [13-12-2023(online)].pdf 2023-12-13
6 202317085014-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [13-12-2023(online)].pdf 2023-12-13
7 202317085014-FORM 1 [13-12-2023(online)].pdf 2023-12-13
8 202317085014-FIGURE OF ABSTRACT [13-12-2023(online)].pdf 2023-12-13
9 202317085014-DRAWINGS [13-12-2023(online)].pdf 2023-12-13
10 202317085014-DECLARATION OF INVENTORSHIP (FORM 5) [13-12-2023(online)].pdf 2023-12-13
11 202317085014-COMPLETE SPECIFICATION [13-12-2023(online)].pdf 2023-12-13
12 202317085014-Others-191223.pdf 2024-01-04
13 202317085014-Others-191223-1.pdf 2024-01-04
14 202317085014-GPA-191223.pdf 2024-01-04
15 202317085014-Correspondence-191223.pdf 2024-01-04
16 202317085014-certified copy of translation [28-02-2024(online)].pdf 2024-02-28
17 202317085014-Others-150324.pdf 2024-04-10
18 202317085014-Correspondence-150324.pdf 2024-04-10
19 202317085014-FORM 3 [02-05-2024(online)].pdf 2024-05-02
20 202317085014-FORM 18 [22-04-2025(online)].pdf 2025-04-22