Vehicle interior systems having a crack resistant curved cover glass and methods for forming the same

Patent metadata

Field	Value
Publication number	US-11718071-B2
Application number	US-201916979918-A
Country	US
Kind code	B2
Filing date	Mar 11, 2019
Priority date	Mar 13, 2018
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

Embodiments of a vehicle interior system and associated processes are disclosed. In one or more embodiments, the system includes a base with a curved surface, and a curved glass article disposed on the curved surface. The curved glass article includes a high modulus adhesive layer located on the second major surface. The high modulus adhesive layer has a modulus of elasticity of at least 500 MPa. The high modulus adhesive layer provides crack resistance to the glass article. Methods for forming such glass articles and vehicle interior systems are also disclosed.

First claim

What is claimed is:

1. A shatter resistant, cold-formed glass article comprising:
a glass substrate comprising a first major surface; a second major surface; and a thickness measured between the first major surface and the second major surface of 0.05 mm to 2 mm;
a layer of high modulus adhesive located on the second major surface, wherein the high modulus adhesive has a modulus of elasticity of at least 500 MPa;
a surface treatment located on the first major surface; and
a frame comprising a curved surface, wherein the glass substrate is cold-formed against the curved surface and the layer of high modulus adhesive is bonded to the curved surface,
wherein the first major surface includes a curved section and the second major surface includes a curved section;
wherein the curved section of the first major surface includes a first radius of curvature greater than 30 mm and less than 1.5 m; and
wherein the first major surface is under a compressive stress, CS 1 , and the second major surface is under a compressive stress, CS 2 , wherein CS 1 is different than CS 2 as a result of the glass substrate being cold-formed via the layer of high modulus adhesive.

2. The glass article of claim 1 , wherein the surface treatment is an anti-reflective coating.

3. The glass article of claim 1 , wherein the high modulus adhesive is a polymer adhesive material, wherein the high modulus adhesive has a modulus of elasticity that is less than 5 GPa.

4. The glass article of claim 1 , wherein the curved section of the first major surface is a convex curved section and the curved section of the second major surface is a concave curved section.

5. The glass article of claim 1 , further comprising at least one of chemically strengthened glass material and thermally strengthened glass material.

6. The glass article of claim 1 , wherein the first major surface has a width and a length, wherein the width is 5 cm to 250 cm, and the length is 5 cm to 250 cm.

7. The glass article of claim 1 , wherein the modulus of elasticity is at most 3 GPa.

8. The glass article of claim 1 , wherein the layer of high modulus adhesive comprises a thickness that is greater than or equal to 25 μm and less than or equal to 500 μm.

9. The glass article of claim 1 , wherein the layer of high modulus adhesive is applied in a dot pattern and portions of the second major surface are not covered by the layer of high modulus adhesive.

Assignees

• Corning Inc

Inventors

• Kumar Atul
• Mitra Arpita
• Sun Yawei

Classifications

• B60K35/425

  Anti-reflection arrangements · CPC title

• B60K2360/60

  Structural details of dashboards or instruments · CPC title

• B32B17/10733 Primary

  containing epoxy · CPC title

• B32B17/10

  of synthetic resin · CPC title

• B32B17/10036

  comprising two outer glass sheets · CPC title