Glass article and production method for glass article

Patent metadata

Field	Value
Publication number	US-11448802-B2
Application number	US-201615352110-A
Country	US
Kind code	B2
Filing date	Nov 15, 2016
Priority date	May 15, 2014
Publication date	Sep 20, 2022
Grant date	Sep 20, 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 assembly for transportation device, comprising:
a glass article; and
a support member supporting the glass article,
wherein the glass article comprises:
a glass comprising a first surface and a second surface;
a resin film attached onto the first surface or the second surface of the glass; and
an antifouling film forming an outermost surface of the interior assembly and comprising a fluorine compound,

the glass has a composition comprising, in terms of mol %, from 50 to 74% of SiO 2 , from 1 to 10% of Al 2 O 3 , from 6 to 14% of Na 2 O, from 3 to 11% of K 2 O, from 0 to 5.0% of Li 2 O, from 2 to 15% of MgO, from 0 to 6% of CaO, and from 0 to 5% of ZrO 2 , such that a sum of contents of SiO 2 and Al 2 O 3 is 75% or less, a sum of contents of Na 2 O and K 2 O is from 12 to 25%, and a sum of contents of MgO and CaO is from 7 to 15%,
the first surface or the second surface of the glass has a roughness having an antiglare property,
the glass has a haze value of 40% or less,
the glass has a bent part comprising at least one site having a Gaussian curvature of −0.1 or less,
the antifouling film is formed such that the outermost surface of the interior assembly has a coefficient of static friction of 1.0 or less, where the coefficient of static friction is measured by placing a pseudo-finger contactor on the outermost surface of the interior assembly and moving the pseudo-finger contactor at a rate of 10 mm/second in a state of applying a load of 30 g, and
the interior assembly is selected from the group consisting of an instrument panel, a head-up display, a dashboard, a center console, and a shift knob.

2. The interior assembly for transportation device according to claim 1 , wherein the second surface of the glass is on an outer front surface side of the interior assembly and the resin film is attached onto the second surface of the glass.

3. The interior assembly for transportation device according to claim 2 ,
wherein the antifouling film is on the second surface of the glass such that the antifouling film forms the outermost surface of the interior assembly.

4. The interior assembly for transportation device according to claim 1 , wherein the resin film has an optical function.

5. The interior assembly for transportation device according to claim 1 , wherein the glass article further comprises
a synthetic resin film having adhesiveness and disposed between the glass and the resin film or disposed on the resin film.

6. The interior assembly for transportation device according to claim 1 , wherein the glass article comprises
two sheets or more of the glass,
and the resin film is disposed between the sheets of the glass.

7. The interior assembly for transportation device according to claim 1 , wherein the bent part comprises at least one site having an average radius of curvature of 30 cm or less.

8. The interior assembly for transportation device according to claim 1 , wherein the at least one site of the bent part has the Gaussian curvature of −0.3 or less.

9. The interior assembly for transportation device according to claim 1 , wherein the glass article further comprises
a low reflection film on the first surface or the second surface of the glass.

10. The interior assembly for transportation device according to claim 1 , wherein the glass has a haze value of 35% or less.

11. The interior assembly for transportation device according to claim 1 , wherein the outermost surface of the interior assembly has a coefficient of dynamic friction of 0.02 or less, where the coefficient of dynamic friction is measured by placing a pseudo-finger contactor on the outermost surface of the interior assembly and moving the pseudo-finger contactor at a rate of 10 mm/second in a state of applying a load of 30 g.

12. The interior assembly for transportation device according to claim 1 , wherein the glass article further comprises
an arbitrary pattern printed on the first surface or the second surface of the glass.

13. The interior assembly for transportation device according to claim 1 , wherein the glass comprises Li 2 O and Na 2 O in a total content of 12 mol % or more.

14. The interior assembly for transportation device according to claim 1 , wherein the glass comprises 0.5 mol % or more of Li 2 O.

15. The interior assembly for transportation device according to claim 1 , wherein the glass comprises 60 mol % or more of SiO 2 and 8 mol % or more of Al 2 O 3 .

16. The interior assembly for transportation device according to claim 1 , wherein the glass comprises a surface compressive stress layer.

17. The interior assembly for transportation device according to claim 16 , wherein the surface compressive stress layer has a surface compressive stress of 300 MPa or more.

18. The interior assembly for transportation device according to claim 16 , wherein the surface compressive stress layer has a depth of 10 μm or more.

19. The interior assembly for transportation device according to claim 1 , wherein the interior assembly is a shift knob.

20. The interior assembly for transportation device according to claim 1 , wherein
the support member comprises at least one selected from the group consisting of polycarbonate, polyethylene terephthalate (PET), acrylonitrile butadiene styrene (ABS), a synthetic rubber, aluminum, stainless steel (SUS), and a ceramic material.

21. The interior assembly for transportation device according to claim 1 , wherein the support member faces the bent part.

22. The interior assembly for transportation device according to claim 1 , wherein the bent part of the glass comprises an edge surface connecting the first surface and the second surface, and the edge surface of the bent part does not contact the support member.

23. A method for producing the interior assembly for transportation device according to claim 1 , the method comprising:
heating two sheets or more of glass comprising a first surface and a second surface, and at least one sheet of a resin film or a synthetic resin film having adhesiveness disposed between the sheets of glass to a predetermined temperature;
subsequently pressurizing and crimping the sheets of glass and the resin film or the synthetic resin film; and
forming an antifouling film comprising a fluorine compound on the first surface or the second surface of the glass such that the antifouling film forms an outermost surface of the interior assembly.

24. The method according to claim 23 , wherein the resin film is used in the heating, and the resin film has an optical function.

25. The method according to claim 23 , wherein the at least one site of the bent part has the Gaussian curvature of −0.3 or less.

26. The method according to claim 23 , further comprising:
forming the resin film, which is used in the heating, into a curved shape before the pressurization and crimping.

27. The method according to claim 23 , wherein the roughness is formed by performing etching on the first surface or the second surface of the glass before the crimping.

28. The method according to claim 23 , wherein the glass is chemically strengthened.

29. The method according to claim 23 , further comprising:
forming a low reflection film on the first surface or the second surface of the glass.

30. The method according to claim 23 , wherein

Assignees

• Agc Inc

Inventors

• Wakatsuki Hiroshi
• Kobayashi Yusuke

Classifications

• C03C2217/732

  made of a single layer · CPC title

• B05D3/0254

  After-treatment · CPC title

• G02B1/11

  Anti-reflection coatings · CPC title

• C03B23/02 Primary

  Re-forming glass sheets · CPC title

• B05D1/02

  performed by spraying · CPC title