Sheet, inorganic-substance-laminated sheet and electronic device using same

• US 10,442,735 B2
• Filed: 06/20/2014
• Issued: 10/15/2019
• Est. Priority Date: 06/27/2013
• Status: Active Grant

• Current Assignee: Toray Industries Incorporated
• Original Assignee: Toray Industries Incorporated
• Inventors: Sato, Yoshikazu, Nomura, Keiichiro, Suzuki, Motoyuki, Kobayashi, Sadayuki, Yoshida, Minoru
• Primary Examiner(s): Langman, Jonathan C
• Application Number:
  US14/895,722
• Publication Number:
  US 20160137554A1
• Time in Patent Office: 1,943 Days
• CPC Class Codes: B32B 2307/7242 Non-permeable
• CPC Class Codes: B32B 2439/70 Food packaging
• CPC Class Codes: B32B 2439/80 Medical packaging
• CPC Class Codes: B32B 2457/20 Displays, e.g. liquid crystal displays, plasma displays
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 3/085 spaced apart pieces on the surface of a layer
• CPC Class Codes: C04B 35/453 based on zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates
• CPC Class Codes: C04B 35/547 based on sulfides or selenides or tellurides
• CPC Class Codes: C08F 2/44 Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
• CPC Class Codes: C08F 2/50 with sensitising agents
• CPC Class Codes: C08J 2333/12 Homopolymers or copolymers of methyl methacrylate
• CPC Class Codes: C08J 2367/02 Polyesters derived from dicarboxylic acids and dihydroxy compounds; C08J2367/06 takes precedence
• CPC Class Codes: C08J 2433/08 Homopolymers or copolymers of acrylic acid esters
• CPC Class Codes: C08J 2433/12 Homopolymers or copolymers of methyl methacrylate
• CPC Class Codes: C08J 5/18 Manufacture of films or sheets
• CPC Class Codes: C08J 7/0423 with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
• CPC Class Codes: C08J 7/048 Forming gas barrier coatings
• CPC Class Codes: C08J 7/06 with compositions not containing macromolecular substances
• CPC Class Codes: C23C 14/10 Glass or silica
• CPC Class Codes: C23C 14/34 Sputtering

Abstract

The present invention aims to provide an inorganic substance-laminated sheet that can be used suitably for applications that require high gas barrier properties. The inorganic substance-laminated sheet includes a sheet having a dispersed structure with a structural period of 0.001 μm to 100 μm on at least one surface and an inorganic substance layer covering the surface having the dispersed structure.

Claims

1. An inorganic substance-laminated sheet comprising a sheet having a dispersed structure with a structural period of 0.01 μ

m to 1 μ

m on at least one surface and an inorganic substance layer covering the surface having the dispersed structure, wherein the inorganic substance layer contains a zinc compound and a silicon compound.

2. An inorganic substance-laminated sheet as described in claim 1, wherein the sheet comprises a base and a substrate layer having a dispersed structure with a structural period of 0.01 μ

m to 1 μ

m, the substrate layer covering at least one surface of the base.

3. An inorganic substance-laminated sheet as described in claim 1, wherein the dispersed structure is a phase-separated structure.

4. An inorganic substance-laminated sheet as described in claim 3, wherein the phase-separated structure is either a co-continuous one or a sea-island one.

5. An inorganic substance-laminated sheet as described in claim 3, wherein the phase-separated structure is either a co-continuous structure or a sea-island structure, and wherein the sheet contains a polymer alloy including at least two resin components.

6. An inorganic substance-laminated sheet as described in claim 5, wherein the co-continuous structure or the sea-island structure in the inorganic substance-laminated sheet is one formed by subjecting at least two resin components to phase separation through spinodal decomposition.

7. An inorganic substance-laminated sheet as described in claim 5, wherein the polymer alloy contains a bi- or poly-functional crosslinked component.

8. An inorganic substance-laminated sheet as described in claim 1, wherein the inorganic substance layer contains at least one element that belongs to any of the 1st to 17th groups in the 2nd to 6th rows of the periodic table.

10. An electronic device comprising an inorganic substance-laminated sheet as described in claim 1.

9. An inorganic substance-laminated sheet comprising a sheet having a dispersed structure with a structural period of 0.01 μ

m to 1 μ

m on at least one surface and an inorganic substance layer covering the surface having the dispersed structure, wherein the inorganic substance layer is either an inorganic A-layer or an inorganic B-layer as specified below;

inorganic A-layer;

a layer of a phase in which zinc oxide, silicon dioxide, and aluminum oxide coexist, and

inorganic B-layer;

a layer of a phase in which zinc sulfide and silicon dioxide coexist.

11. An electronic device comprising an inorganic substance-laminated sheet comprising a sheet having a dispersed structure with a structural period of 0.01 μ

m to 1 μ

m on at least one surface and an inorganic substance layer covering the surface having the dispersed structure, wherein the inorganic substance layer contains a zinc compound and a silicon compound.