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Soft, chemically-strengthenable glasses for laminates

A softening point, glass product technology, applied in chemical instruments and methods, glass/slag layered products, layered products, etc., can solve problems such as glass product shape mismatch

Pending Publication Date: 2021-04-23
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

use Figure 1B method would result in a shape mismatch between the two glassware from separate bending steps

Method used

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  • Soft, chemically-strengthenable glasses for laminates
  • Soft, chemically-strengthenable glasses for laminates
  • Soft, chemically-strengthenable glasses for laminates

Examples

Experimental program
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Embodiment

[0173] Various embodiments are further illustrated by the following examples.

[0174] Table 1: Composition and properties of Comparative Example 1 and Examples 1-6 and 11

[0175]

[0176]

[0177] Examples 1-6 and 11 are exemplary glass compositions according to one or more embodiments of the present disclosure. Table 1 provides the glass compositions (mol %) for Examples 1-6 and 11. Table 1 also contains the relationship between strain point temperature (measured by beam bending viscometer), annealing point temperature (measured by beam bending viscometer), softening point temperature (measured by parallel plate), 20°C density, CTE, refractive index and stress Optical Coefficient (SOC) related information. Comparative Example C1 provided similar properties. Cl was prepared using a production fusion draw; and Examples 1-6 and 11 were prepared using a small continuous melter. C1 can be considered the base composition, whereby Examples 1-6 and 11 are considered impro...

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PUM

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Abstract

Disclosed herein are embodiments of a glass article having a glass composition. The glass composition includes SiO2 in an amount of from 63 mol% to 75 mol%, Al2O3 in an amount of from 7 mol% to 13 mol%, R2O in an amount of from 13 mol% to 24 mol%, P2O5 in an amount of from 0.1 mol% to 1.2 mol%, and a water content [beta]-OH of 0.1 abs / mm to 0.5 abs / mm. Further, the glass composition includes at least one of MgO or ZnO. MgO is present in a range from 0 mol% to 7 mol%, and ZnO is present in a range from 0 mol% to 7 mol%. The glass article has an anneal point and a softening point, and the relationship of (anneal point + softening point) / 2 is less than 685 DEG C.

Description

[0001] Related Application Cross Reference [0002] This application claims priority under 35 U.S.C. §119 to U.S. Provisional Application Serial No. 62 / 724,798, filed August 30, 2018, which application is based upon and is hereby incorporated by reference in its entirety. Background technique [0003] The present disclosure relates to glass compositions and laminates, and more particularly, to glass compositions, glass articles and laminates that exhibit bending properties for automotive and architectural applications. [0004] Glass is widely used in windows due to its optical clarity and durability. Automotive and architectural windows (or panes) can consist of a single glass article (in sheet form), called a monolith, or a laminate comprising two glasses with an interlayer of polymeric material disposed between them Manufacture (tablet form). Such panes can be used in automotive applications as windshields, side windows, rear windows and sunroofs, among others. Architect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/087C03C3/097C03C21/00B32B17/06
CPCC03C3/097C03C21/002B32B17/10119B32B17/10036B32B17/10889B32B17/10137B32B17/10761B32B17/10788B32B17/1077C03C3/085
Inventor T·M·格罗斯L·A·提埃兹摩尔
Owner CORNING INC