Laminate and manufacturing method of laminate

Patent metadata

Field	Value
Publication number	US-2025018697-A1
Application number	US-202418889327-A
Country	US
Kind code	A1
Filing date	Sep 18, 2024
Priority date	Mar 25, 2022
Publication date	Jan 16, 2025
Grant date	—

Abstract

Provided are a laminate including a first resin layer, an inorganic layer, and a second resin layer, in which a mixed layer is provided between the first resin layer and the inorganic layer and between the second resin layer and the inorganic layer; and a manufacturing method of a laminate.

First claim

What is claimed is:

1 . A laminate comprising:
a first resin layer; an inorganic layer; and a second resin layer, wherein a mixed layer is provided between the first resin layer and the inorganic layer, and between the second resin layer and the inorganic layer, and wherein the inorganic layer has a void ratio of 25% or less.

2 . The laminate according to claim 1 ,
wherein the inorganic layer is a continuous layer.

3 . The laminate according to claim 1 ,
wherein the mixed layer has a thickness of 1 nm to 30 nm.

4 . The laminate according to claim 1 ,
wherein the inorganic layer contains one or more inorganic materials selected from the group consisting of a silicon oxide, a silicon nitride, an aluminum oxide, and an aluminum nitride.

5 . The laminate according to claim 1 ,
wherein the inorganic layer contains silicon dioxide.

6 . The laminate according to claim 1 ,
wherein the inorganic layer has a thickness of 5 nm or less.

7 . A laminate comprising;
a first resin layer; and a second resin layer, wherein a contrast layer containing an inorganic material is provided between the first resin layer and the second resin layer, and in a case where a cross section of the laminate is irradiated with electron beams for 10 minutes under conditions of a voltage of 300 kV using a transmission electron microscope and a cross-sectional image of the laminate after the electron beams irradiation is obtained, a density measured by image analysis software decreases from an inside of the contrast layer of the cross-sectional image toward a surface.

8 . A manufacturing method of a laminate, comprising:
a step of forming a mixed layer and an inorganic layer in this order on each surface of a first resin layer and a second resin layer by plasma chemical vapor deposition to obtain a first laminate including the first resin layer, the mixed layer, and the inorganic layer and a second laminate including the second resin layer, the mixed layer, and the inorganic layer; and a step of laminating the inorganic layer of the first laminate and the inorganic layer of the second laminate.

9 . The manufacturing method of a laminate according to claim 8 ,
wherein the formation of the mixed layer and the inorganic layer on each of the first resin layer and the second resin layer and the lamination of the first laminate and the second laminate are carried out at the same time.

10 . The manufacturing method of a laminate according to claim 8 ,
wherein the inorganic layer of the first laminate and the inorganic layer of the second laminate each has a surface roughness Ra of 2 nm or less.

Assignees

• Fujifilm Corp

Inventors

• Mochizuki Yoshihiko
• Nagano Satoshi
• Harasawa Takehiko
• Seki Tomokazu

Classifications

• C23C16/50

  using electric discharges {(generation and control of plasma in discharge tubes for surface treatment H01J37/32, H01J37/34)} · CPC title

• C23C16/402

  Silicon dioxide · CPC title

• C09D4/00

  Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16} · CPC title

• B32B2255/28

  Multiple coating on one surface · CPC title

• B32B2255/20

  Inorganic coating · CPC title