Glass film-resin composite

Patent metadata

Field	Value
Publication number	US-11738534-B2
Application number	US-201716345579-A
Country	US
Kind code	B2
Filing date	Oct 24, 2017
Priority date	Oct 26, 2016
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

Provided is a glass film-resin composite which makes it possible to obtain a long-length (e.g., 500 m or more-long) glass roll. The glass film-resin composite comprises a glass film, and a resin tape laminated to at least one surface of the glass film through an adhesive, wherein the width 1 (mm) of the resin tape satisfies the following formula (1).l⁢≡⁢a⁢Eg⁢tgEp⁢tp(1)(where: a represents a reinforcement coefficient (mm*(μm)1/2) which is 1.10 or more; Eg represents the Young's modulus (GPa) of the glass film; Ep represents the Young's modulus (GPa) of the resin tape; tg represents the thickness (μm) of the glass film; and tp represents the thickness (μm) of the resin tape.)

First claim

The invention claimed is:

1. A glass film-resin composite comprising:
a glass film, and
a resin tape laminated to at least one surface of the glass film through an adhesive, wherein
the width 1 (mm) of the resin tape satisfies the following formula (1);

l
⁢

≡

⁢

a
⁢

E
g

⁢

t
g

E
p

⁢

t
p

(
1
)

(where: a represents a reinforcement coefficient (mm*(μm) 1/2 ) which is 1.10 or more; Eg represents the Young's modulus (GPa) of the glass film; Ep represents the Young's modulus (GPa) of the resin tape; tg represents the thickness (μm) of the glass film; and tp represents the thickness (μm) of the resin tape),
wherein the glass film is a glass ribbon,
wherein a plurality of the resin tapes are laminated such that the plurality of the resin tapes are provided in the vicinity of each of width-directional opposite edges of the glass ribbon, in spaced-apart relation to each other,
wherein each of the resin tapes has a width of 1% to less than 5% the width of the glass film,
wherein each of the resin tapes has a width of less than 5 mm, and
wherein the resin tape is laminated to the at least one surface of the glass film through an adhesive having no peelability.

2. The glass film-resin composite as recited in claim 1 , wherein the adhesive has an elastic modulus of 1 GPa or more.

3. The glass film-resin composite as recited in claim 1 , wherein the thickness tg of the glass film is 200 μm or less.

4. The glass film-resin composite as recited in claim 1 , which is used for producing a glass roll.

5. The glass film-resin composite as recited in claim 4 , wherein the glass roll has a length of at least 500 meters.

6. The glass film-resin composite as recited in claim 1 , wherein the resin tape is provided such that a longitudinal direction of the resin tape becomes parallel to the long side of the glass film.

7. The glass film-resin composite as recited in claim 1 , wherein the thickness tg of the glass film is 100 μm or less.

8. The glass film-resin composite as recited in claim 1 , wherein the thickness tp of the resin tape is 100 μm or less.

Assignees

• Nitto Denko Corp

Inventors

• Murashige Takeshi
• Inagaki Junichi
• Hosokawa Kazuhito
• Nakai Kota
• Kanno toshihiro

Classifications

• B32B3/14 Primary

  characterised by a face layer formed of separate pieces of material {which are juxtaposed side-by-side (B32B5/02 takes precedence)} · CPC title

• B32B7/14

  applied in spaced arrangements, e.g. in stripes · CPC title

• B32B17/10 Primary

  of synthetic resin · CPC title

• C03B40/033

  Means for preventing adhesion between glass and glass · CPC title

• C03C17/32

  with synthetic or natural resins (C03C17/30 takes precedence) · CPC title