Molding packaging material

Patent metadata

Field	Value
Publication number	US-9812678-B2
Application number	US-201414454777-A
Country	US
Kind code	B2
Filing date	Aug 8, 2014
Priority date	Aug 9, 2013
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

In some embodiments, a molding packaging material includes an outer side base layer made of a heat resistant resin, an inner sealant layer, a metal foil layer arranged between the outer side base material layer and the inner sealant layer, and a matte coat layer formed on a side opposite to a metal foil layer side of the outer side base material layer. The matte coat layer includes a resin component, a solid fine particle, and a lubricant, and the inner sealant layer includes a thermoplastic resin and a lubricant.

First claim

What is claimed is:

1. A molding packaging material comprising:
an outer base material layer made of a heat resistant resin;
an inner sealant layer;
a metal foil layer arranged between the outer base material layer and the inner sealant layer; and
a matte coat layer on an outer side of the outer base material layer, the outer side of the outer base material layer being opposite to a side of the outer base material layer facing the metal foil layer; wherein
the matte coat layer includes a resin component, a solid fine particle, and a lubricant; and
the inner sealant layer includes a thermoplastic resin and a lubricant;
the resin component is at least one of a resin selected from the group consisting of an acrylic-based resin, an epoxy-based resin, an urethane-based resin, a polyolefin-based resin, a fluorine-based resin, and a phenoxy resin;
a content rate of the lubricant in the matte coat layer is within a range of 5,000 ppm to 15,000 ppm; and
the content rate of the lubricant in the matte coat layer is greater than a content rate of the lubricant in the inner sealant layer.

2. The molding packaging material as recited in claim 1 , wherein the matte coat layer comprises a resin composition containing the resin component, the solid fine particle, and the lubricant.

3. The molding packaging material as recited in claim 1 , wherein the resin component contained in the matte coat layer includes a main ingredient resin and a curing agent, the main ingredient resin containing a phenoxy resin and a urethane resin.

4. The molding packaging material as recited in claim 3 , wherein a mass ratio of the phenoxy resin and the urethane resin in the main ingredient resin is a urethane resin 0.6-1.6 to a phenoxy resin 1.

5. The molding packaging material as recited in claim 1 , wherein the lubricant contained in the matte coat layer is higher fatty acid amide.

6. The molding packaging material as recited in claim 1 , wherein an average particle size of solid fine particles contained in the matte coat layer is 1-10 μm.

7. The molding packaging material as recited in claim 2 , wherein a content rate of the solid fine particles in the resin composition constituting the matte coat layer is 0.1-60% by weight.

8. The molding packaging material as recited in claim 1 , wherein the inner sealant layer comprises a resin composition containing the thermoplastic resin and the lubricant.

9. The molding packaging material as recited in claim 1 , wherein the lubricant contained in the inner sealant layer is a higher fatty acid amide.

10. The molding packaging material as recited in claim 1 , wherein the inner sealant layer further contains one or more solid fine particles selected from the group consisting of an acrylic resin, a silicone resin, a fluoric resin and silica.

11. A molded case formed by subjecting the molding packaging material as recited in claim 1 to deep drawing or bulging.

12. The molded case as recited in claim 11 , wherein the molded case is used as a battery case.

13. The molding packaging material as recited in claim 1 , wherein the content rate of the lubricant in the inner sealant layer is within a range of 500 ppm to 5,000 ppm.

Assignees

• Showa Denko Packaging Co Ltd

Inventors

• Minamibori Yuji
• Wang Honglin

Classifications

• B32B2255/26

  Polymeric coating · CPC title

• B32B2307/746

  Slipping, anti-blocking, low friction · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title

• B32B15/20

  comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} · CPC title

• B32B7/06 Primary

  permitting easy separation · CPC title