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US 11,027,525 B2Granted
Curved laminated glass and manufacturing method for curved laminated glass
AssigneeLG Chem, Ltd.
InventorsJun Hak Oh, Chang Hee Lee, Jae Hyuk Yoon, Ho Seong Kang
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Abstract
The present disclosure provides a curved laminated glass including a curved soda lime glass and a curved thin plate glass provided on a concave surface of the curved soda lime glass, in which a thickness of the curved soda lime glass is larger than a thickness of the curved thin plate glass, and compressive stress is formed on a surface opposite to a surface of the curved thin plate glass adjacent to the curved soda lime glass.
Claims11
A curved laminated glass for automobile comprising:
- a curved soda lime glass;
- and
- a curved thin plate glass provided on a concave surface of the curved soda lime glass,
- wherein a thickness of the curved soda lime glass is larger than a thickness of the curved thin plate glass,
- wherein a first surface of the curved thin plate glass is adjacent to the curved soda lime glass, and compressive bending stress is formed on a second surface of the curved thin plate, which is opposite to the first surface of the curved thin plate glass,
- wherein the curved thin plate glass is non-tempered alkali-free glass including 26 wt % to 29 wt % of Al2O3, and
- wherein a Vickers hardness ratio of the curved soda lime glass to the curved thin plate glass is 1:1.1 to 1:1.3.
4 more elements
A method for manufacturing a curved laminated glass for automobile, the method comprising:
- preparing a curved soda lime glass;
- providing a thin plate glass which is flat on a concave surface of the curved soda lime glass;
- and
- laminating the thin plate glass onto the concave surface of the soda lime glass by elastically deforming the thin plate glass to form a curved thin plate glass,
- wherein a thickness of the curved soda lime glass is larger than a thickness of the curved thin plate glass,
- wherein a first surface of the curved thin plate glass is adjacent to the curved soda lime glass, and compressive bending stress is formed on a second surface of the curved thin plate, which is opposite to the first surface of the curved thin plate glass,
- wherein the curved thin plate glass is non-tempered alkali-free glass including 26 wt % to 29 wt % of Al2O3, and
- wherein a Vickers hardness ratio of the curved soda lime glass to the curved thin plate glass is 1:1.1 to 1:1.3.
5 more elements
Dependencies are inferred from the claim text.