Multilayer structure, method for producing same, packaging material and product including same, and protective sheet for electronic device

Patent metadata

Field	Value
Publication number	US-10647487-B2
Application number	US-201615760712-A
Country	US
Kind code	B2
Filing date	Sep 16, 2016
Priority date	Sep 17, 2015
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

The present invention relates to a multilayer structure including a base (X), a layer (Y), and a layer (Z), wherein the layer (Y) contains an aluminum-containing compound (A), and the layer (Z) contains an organic phosphorus compound (BO) and a polymer (F) having an ether bond and having no glycosidic bond.

First claim

The invention claimed is:

1. A multilayer structure, comprising a base (X), a layer (Y), and a layer (Z), wherein:
the layer (Y) comprises an aluminum-containing compound (A); and
the layer (Z) comprises an organic phosphorus compound (BO) and a polymer (F) having an ether bond and having no glycosidic bond,
wherein the aluminum-containing compound (A) is a compound (Ab) comprising a reaction product (D) formed by a reaction between an aluminum-containing metal oxide (Aa) and an inorganic phosphorus compound (BI).

2. The multilayer structure according to claim 1 , comprising at least one pair of the layer (Z) and the layer (Y) that are disposed contiguous to each other.

3. The multilayer structure according to claim 1 , wherein the ratio W BO /W BI between the mass W BI of the inorganic phosphorus compound (BI) and the mass W BO of the organic phosphorus compound (BO) is 0.06 or more.

4. The multilayer structure according to claim 1 , wherein the mass ratio between the organic phosphorus compound (BO) and the polymer (F) is 30:70 to 99:1.

5. The multilayer structure according to claim 1 , wherein the organic phosphorus compound (BO) is a polymer having at least one functional group selected from the group consisting of a phosphoric acid group, a phosphorous acid group, a phosphonic acid group, a phosphonous acid group, a phosphinic acid group, and a phosphinous acid group.

6. The multilayer structure according to claim 1 , wherein the polymer (F) is polyethylene glycol or polyethylene oxide.

7. The multilayer structure according to claim 1 , wherein the base (X) comprises at least one layer selected from the group consisting of a thermoplastic resin film layer and a paper layer.

8. The multilayer structure according to claim 1 , wherein the polymer (F) is a polyoxyalkylene polymer.

9. The multilayer structure according to claim 1 , wherein the polymer (F) is a polyoxyalkylene polymer (Fa) having a repeating unit represented by the following formula (III)
—R 5 —O—  (III)

wherein R 5 is an optionally substituted, linear or branched alkylene group having 1 to 14 carbon atoms.

10. The multilayer structure according to claim 1 , wherein the polymer (F) is a polyalkylene glycol polymer (Fb) having a repeating unit represented by the following formula (III)
—R 5 —O—  (III)

wherein R 5 is an optionally substituted, linear or branched alkylene group having 1 to 14 carbon atoms.

11. The multilayer structure according to claim 1 , wherein the polymer (F) is a polyoxymethylene, a polyethylene glycol, a polyethylene oxide, a polypropylene glycol, a polypropylene oxide, a polyoxyethylene polyoxypropylene glycol, or a polytetramethylene ether glycol.

12. The multilayer structure according to claim 1 , wherein the polymer (F) is a polyalkylene glycol polymer comprising an alkylene group comprising 2 to 4 carbon atoms.

13. A packaging material, comprising the multilayer structure according to claim 1 .

14. The packaging material according to claim 13 , further comprising a layer formed by extrusion coating lamination.

15. The packaging material according to claim 13 , being a vertical form-fill-seal bag, a vacuum packaging bag, a pouch, a laminated tube container, an infusion bag, a paper container, a strip tape, a container lid, or an in-mold labeled container.

16. A product, comprising the packaging material according to claim 13 at least a part of the product.

17. A vacuum insulator, comprising the product according to claim 16 , wherein:
the product contains a substance in an interior thereof;
the substance is a core material; and
the interior of the product has a reduced pressure.

18. A protective sheet for electronic devices, the protective sheet comprising the multilayer structure according to claim 1 .

19. A method for protecting a surface of a photoelectric conversion device, information display device, or lighting device, the method comprising contacting the surface with the protective sheet according to claim 18 .

20. An electronic device, comprising the protective sheet according to claim 18 .

Assignees

• Kuraray Co
• Kurray Co Ltd

Inventors

• Sasaki Ryoichi
• Inubushi Yasutaka
• Ota Masahiko
• Morihara Yasushi
• Nakaya Masakazu

Classifications

• B32B2307/7246

  Water vapor barrier · CPC title

• B32B2439/00

  Containers; Receptacles · CPC title

• B32B37/15

  with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state · CPC title

• B32B2250/03

  3 layers · CPC title

• B32B27/12

  next to a fibrous or filamentary layer · CPC title