IP Library › Granted Patent US 11,766,848
Granted Patent B2
US 11,766,848 · App. 16/644,569 · Granted Sep 26, 2023

Molding packaging material, power storage device packaging case, and power storage device

Inventors: Kenji Yoshino (Kanagawa, JP); Makoto Karatsu (Kanagawa, JP); Takashi Nagaoka (Kanagawa, JP)
Assignee: SHOWA DENKO PACKAGING CO., LTD.
B32B15/085B32B7/12B32B27/18B32B37/12B32B38/0036B65D65/40H01M10/0525H01M50/105H01M50/202H01M50/231B32B2307/30B32B2457/10B32B2553/00
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Quick Facts
Patent No.
US 11,766,848
App. No.
16/644,569
Granted
Sep 26, 2023
Kind
B2
Abstract

Provided is a molding packaging material which is capable of ensuring good slipperiness to secure good formability when molding the molding packaging material and is less likely to cause white powder on a surface of the packaging material. The molding packaging material includes a substrate layer 2 as an outer layer, a heat fusible resin layer 3 as an inner layer, and a metal foil layer 4 arranged between the two layers. The heat fusible resin layer 3 is composed of a single layer or a multi-layer. The innermost layer of the heat fusible resin layer 3 is made of a resin composition containing a heat fusible resin, an anti-blocking agent, a slip agent, and a fluoropolymer-based lubricant.

Claims (50)

1. A molding packaging material comprising:

a substrate layer as an outer layer;

a heat fusible resin layer as an inner layer; and

a metal foil layer arranged between the substrate layer and the heat fusible resin layer,

wherein the heat fusible resin layer is composed of a multi-layer, and

wherein an innermost layer of the heat fusible resin layer is made of a resin composition containing a heat fusible resin, an anti-blocking agent, a slip agent, and a fluoropolymer-based lubricant.

2. A molding packaging material comprising:

a substrate layer as an outer layer;

a heat fusible resin layer as an inner layer; and

a metal foil layer arranged between the substrate layer and the heat fusible resin layer,

wherein the heat fusible resin layer is composed of a multi-layer,

wherein an innermost layer of the heat fusible resin layer is made of a resin composition containing a heat fusible resin, a roughening material, a slip agent, and a fluoropolymer-based lubricant, and

wherein a first lubricative layer containing a fluoropolymer-based lubricant in a content rate greater than 50 mass % is formed on an inner surface of the innermost layer.

3. A molding packaging material comprising:

a substrate layer as an outer layer;

a heat fusible resin layer as an inner layer; and

a metal foil layer arranged between the substrate layer and the heat fusible resin layer,

wherein the heat fusible resin layer is composed of a multi-layer,

wherein an innermost layer of the heat fusible resin layer is made of a resin composition containing a heat fusible resin, a roughening material, a slip agent, and a fluoropolymer-based lubricant, and

wherein the roughening material contains a thermoplastic resin.

4. A molding packaging material comprising:

a substrate layer as an outer layer;

a heat fusible resin layer as an inner layer; and

a metal foil layer arranged between the substrate layer and the heat fusible resin layer,

wherein the heat fusible resin layer is composed of a multi-layer,

wherein an innermost layer of the heat fusible resin layer is made of a resin composition containing a heat fusible resin, a roughening material, a slip agent, and a fluoropolymer-based lubricant,

wherein the roughening material contains a thermoplastic resin, and

wherein a first lubricative layer containing a fluoropolymer-based lubricant in a content rate greater than 50 mass % is formed on an inner surface of the innermost layer.

5. The molding packaging material as recited in claim 3 ,

wherein the thermoplastic resin composing the roughening material is a high density polyethylene resin.

6. The molding packaging material as recited in claim 1 ,

wherein a part of the slip agent and a part of the fluoropolymer-based lubricant are both adhered to an inner surface of the innermost layer.

7. The molding packaging material as recited in claim 1 ,

wherein the slip agent is adhered to an outer surface of the substrate layer.

8. The molding packaging material as recited in claim 2 ,

wherein a second lubricative layer containing the slip agent in a content rate greater than 50 mass % is formed on an inner surface of the first lubricative layer.

9. The molding packaging material as recited in claim 2 ,

wherein a third lubricative layer containing the slip agent is formed on an outer surface of the substrate layer.

10. The molding packaging material as recited in claim 1 ,

wherein a content rate of the fluoropolymer-based lubricant in the innermost layer is 5 ppm to 5,000 ppm.

11. The molding packaging material as recited in claim 1 ,

wherein a fluorine content rate in the fluoropolymer-based lubricant is 50 mass % or more.

12. The molding packaging material as recited in claim 1 ,

wherein the fluoropolymer-based lubricant is one or two fluoropolymer-based lubricants selected from the group consisting of a tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer and a hexafluoropropylene-vinylidene fluoride copolymer.

13. The molding packaging material as recited in claim 1 ,

wherein the slip agent is a fatty acid amide.

14. The molding packaging material as recited in claim 1 ,

wherein a dynamic friction coefficient of an outer surface of the packaging material is 0.5 or less.

15. The molding packaging material as recited in claim 1 ,

wherein a dynamic friction coefficient of an inner surface of the packaging material is 0.5 or less.

Assignments (2)
CHANGE OF NAME Recorded Dec 21, 2023
From: SHOWA DENKO PACKAGING CO., LTD.
To: RESONAC PACKAGING CORPORATION
Reel/Frame 066089/0675 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 5, 2020
From: YOSHINO, KENJI; KARATSU, MAKOTO; NAGAOKA, TAKASHI
To: SHOWA DENKO PACKAGING CO., LTD.
Reel/Frame 052023/0179 →
Priority Claims (4)
JP 2017-170957 · Sep 6, 2017 · national
JP 2017-170958 · Sep 6, 2017 · national
JP 2017-179875 · Sep 20, 2017 · national
JP 2017-180007 · Sep 20, 2017 · national
Continuity (1)
Related Publication 20210362473A1 · Nov 25, 2021