Glass article and production method for glass article

Patent metadata

Field	Value
Publication number	US-11280939-B2
Application number	US-201715714462-A
Country	US
Kind code	B2
Filing date	Sep 25, 2017
Priority date	May 15, 2014
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

The glass article has a three-dimensional shape. The glass article contains a first surface and at least one second surface opposite to the first surface, and contains a bent part in at least one place of the first surface or the second surface.

First claim

The invention claimed is:

1. An interior member for transportation device, comprising:
a glass having a bent part and having a first surface and a second surface; and
a support member supporting the glass,
wherein a coating having a rough surface is formed on the second surface of the glass such that the glass with the coating has a haze value of 5% or less and a gloss value of from 85 to 115,
an antifouling film comprising a fluorine compound is formed on an outermost surface of the second surface of the glass such that the second surface has a static friction coefficient of 1.0 or less, where the static friction coefficient is measured by placing a pseudo-finger contactor on the second surface of the glass and moving the pseudo-finger contactor at a rate of 10 mm/second in a state of applying a load of 30 g,
the bent part of the glass is not fixed to the support member by an adhesive, and the glass is movable on the support member, and
the support member is provided in a transportation device.

2. The interior member according to claim 1 ,
wherein the support member is provided on a first surface side of the glass such that the second surface of the glass is on an outer front surface side of the interior member.

3. The interior member according to claim 1 ,
wherein the glass is a laminated glass comprising two or more sheets of glass and a resin film between the sheets of glass.

4. The interior member according to claim 1 ,
wherein the bent part contains at least one site having an average radius of curvature of 30 cm or less.

5. The interior member according to claim 1 ,
wherein the first surface or the second surface of the glass comprises a low reflection film.

6. The interior member according to claim 1 ,
wherein the antifouling film is formed on the outermost surface of the second surface of the glass such that the second surface has the static friction coefficient of 0.9 or less.

7. The interior member according to claim 1 ,
wherein the antifouling film is formed on the outermost surface of the second surface of the glass such that the second surface has the static friction coefficient of 0.8 or less.

8. The interior member according to claim 1 ,
wherein an arbitrary pattern is printed on the first surface of the glass.

9. The interior member according to claim 1 ,
wherein the glass has a total content of Li 2 O and Na 2 O of 12 mol % or more.

10. The interior member according to claim 1 ,
wherein the glass contains 0.5 mol % or more of Li 2 O.

11. The interior member according to claim 1 ,
wherein the glass contains 60 mol % or more of SiO 2 and 8 mol % or more of Al 2 O 3 .

12. The interior member according to claim 1 ,
wherein the glass contains from 50 to 80 mol % of SiO 2 , from 0.1 to 25 mol % of Al 2 O 3 , and from 3 to 30 mol % of Li 2 O+Na 2 O+K 2 O.

13. The interior member according to claim 1 , which is an instrument panel, a head-up display, a dashboard, a center console, or a shift knob.

14. The interior member according to claim 1 ,
wherein the glass has an edge surface connecting the first surface and the second surface, and the edge surface does not contact the support member.

15. The interior member according to claim 1 ,
wherein the bent part contains at least one site having a Gaussian curvature of not 0.

16. The interior member according to claim 15 ,
wherein the Gaussian curvature is negative.

17. The interior member according to claim 1 ,
wherein the coating is an antiglare film.

18. The interior member according to claim 17 ,
wherein the coating is formed by a process comprising spray coating the second surface of the glass with a coating liquid comprising SiO 2 or a SiO 2 precursor, and heating the glass coated with the coating liquid.

19. The interior member according to claim 1 ,
wherein the glass is a chemically strengthened glass having a surface compressive stress layer.

20. The interior member according to claim 19 ,
wherein the surface compressive stress layer has a surface compressive stress of 300 MPa or more.

21. The interior member according to claim 19 ,
wherein the surface compressive stress layer has a depth of 10 μm or more.

22. A transportation device, comprising:
the interior member of claim 1 fixed inside the transportation device.

23. The transportation device according to claim 22 ,
wherein the support member of the interior member is provided on a first surface side of the glass such that the second surface of the glass is on an outer front surface side of the interior member.

24. The transportation device according to claim 22 ,
wherein the glass of the interior member is a laminated glass comprising two or more sheets of glass and a resin film between the sheets of glass.

25. The transportation device according to claim 22 ,
wherein the bent part contains at least one site having a negative Gaussian curvature.

26. The transportation device according to claim 22 ,
wherein the second surface of the glass has a low reflection film.

27. The transportation device according to claim 22 ,
wherein the antifouling film is formed on the outermost surface of the second surface of the glass such that the second surface has the static friction coefficient of 0.9 or less.

Assignees

• Agc Inc

Inventors

• Wakatsuki Hiroshi
• Kobayashi Yusuke

Classifications

• C03B23/02 Primary

  Re-forming glass sheets · CPC title

• C03C3/083

  containing aluminium oxide or an iron compound · CPC title

• B05D3/0254

  After-treatment · CPC title

• C03C27/10

  with the aid of adhesive specially adapted for that purpose · CPC title

• C03C19/00

  Surface treatment of glass, not in the form of fibres or filaments, by mechanical means (sand-blasting, grinding, or polishing glass B24) · CPC title