IP Library Granted Patent US 11,618,241
Granted Patent B2
US 11,618,241 · App. 17/782,743 · Granted Apr 4, 2023

Glass roll

Inventor: Hiroki Mori (Shiga, JP)
Assignee: NIPPON ELECTRIC GLASS CO., LTD.
B32B7/12B32B17/10018B32B17/10293B32B2307/546B32B2307/732
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Quick Facts
Patent No.
US 11,618,241
App. No.
17/782,743
Granted
Apr 4, 2023
Kind
B2
Abstract

A glass roll ( 1 ) includes a laminate film ( 5 ) taken up into a roll shape, the laminate film including a glass film ( 2 ), a protective film ( 3 ), and an adhesive layer ( 4 ), which is arranged between the glass film ( 2 ) and the protective film ( 3 ), and is configured to bond the glass film ( 2 ) to the protective film ( 3 ). A width (A) of the protective film ( 3 ) is larger than a width (B) of the glass film ( 2 ), and both end portions ( 3 x ) of the protective film ( 3 ) in a width direction each protrude with respect to the glass film ( 2 ). The width (B) of the glass film ( 2 ) is larger than a width (C) of the adhesive layer ( 4 ), and both end portions ( 2 x ) of the glass film ( 2 ) in the width direction each protrude with respect to the adhesive layer ( 4 ).

Claims (18)

1. A glass roll, comprising a laminate film taken up into a roll shape, the laminate film comprising a glass film, a protective film, and an adhesive layer, which is arranged between the glass film and the protective film, and is configured to bond the glass film to the protective film,

wherein a width of the protective film is larger than a width of the glass film, and both end portions of the protective film in a width direction each protrude with respect to the glass film, and

wherein the width of the glass film is larger than a width of the adhesive layer, and both end portions of the glass film in the width direction each protrude with respect to the adhesive layer.

2. The glass roll according to claim 1 , wherein a protrusion width of each of the end portions of the glass film in the width direction with respect to the adhesive layer is from 0.1 mm to 10 mm.

3. The glass roll according to claim 1 , wherein a protrusion width of each of the end portions of the protective film in the width direction with respect to the glass film is from 1 mm to 100 mm.

4. The glass roll according to claim 1 , wherein the adhesive layer is a light pressure-sensitive adhesive layer formed on one surface of the protective film.

5. The glass roll according to claim 1 , wherein the adhesive layer has a thickness of 100 μm or less.

6. The glass roll according to claim 2 , wherein a protrusion width of each of the end portions of the protective film in the width direction with respect to the glass film is from 1 mm to 100 mm.

7. The glass roll according to claim 2 , wherein the adhesive layer is a light pressure-sensitive adhesive layer formed on one surface of the protective film.

8. The glass roll according to claim 3 , wherein the adhesive layer is a light pressure-sensitive adhesive layer formed on one surface of the protective film.

9. The glass roll according to claim 6 , wherein the adhesive layer is a light pressure-sensitive adhesive layer formed on one surface of the protective film.

10. The glass roll according to claim 2 , wherein the adhesive layer has a thickness of 100 μm or less.

11. The glass roll according to claim 3 , wherein the adhesive layer has a thickness of 100 μm or less.

12. The glass roll according to claim 6 , wherein the adhesive layer has a thickness of 100 μm or less.

13. The glass roll according to claim 4 , wherein the adhesive layer has a thickness of 100 μm or less.

14. The glass roll according to claim 7 , wherein the adhesive layer has a thickness of 100 μm or less.

15. The glass roll according to claim 8 , wherein the adhesive layer has a thickness of 100 μm or less.

16. The glass roll according to claim 9 , wherein the adhesive layer has a thickness of 100 μm or less.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 6, 2022
From: MORI, HIROKI
To: NIPPON ELECTRIC GLASS CO., LTD.
Reel/Frame 060111/0690 →
Priority Claims (1)
JP JP2019-222280 · Dec 9, 2019 · national
Continuity (1)
Related Publication 20230001668A1 · Jan 5, 2023