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Chemically-strengthenable glasses for laminates

A technology for glass products and glass compositions, applied in windshields, chemical instruments and methods, glass/slag layered products, etc., can solve problems such as increasing the cost of manufacturing processes, and achieve the effect of increasing compressive stress

Inactive Publication Date: 2021-02-09
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Correspondingly, this difference in viscosity means that known AlSi glassware must be sagged individually and cannot be sagged in pairs, thus increasing the cost of the overall manufacturing process

Method used

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  • Chemically-strengthenable glasses for laminates
  • Chemically-strengthenable glasses for laminates
  • Chemically-strengthenable glasses for laminates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0167] The present disclosure can be further understood by reference to the following examples.

[0168] Table 1, Compositions and Properties of Comparative Examples 1 and 2 and Examples 1 to 5

[0169]

[0170]

[0171] Table 2. Compositions and Properties of Examples 6 to 11

[0172]

[0173]

[0174] Table 3. Compositions and Properties of Examples 12 to 17

[0175]

[0176]

[0177] Table 4. Compositions and Properties of Examples 18 to 21

[0178]

[0179]

[0180] Examples 1-21 are examples of glass compositions made according to the present disclosure. The glass compositions (expressed in mol%) of Examples 1 to 21 are described in Tables 1 to 4. Table 1 also includes information related to strain point temperature (measured by beam bending viscometer), annealing point temperature (measured by beam bending viscometer), softening point temperature (measured by parallel plate), density at 20°C, CTE, refractive index, and stress optic coefficient...

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Abstract

Disclosed herein glass articles having a glass composition. The glass composition includes SiO2 in an amount in a range from about 63 mol% to about 75 mol%; Al2O3 in an amount in a range from about 7mol% to about 13 mol%; R2O in an amount from about 13 mol% to about 24 mol%; P2O5 in an amount in a range from about 0 mol% to about 2 mol%; MgO is present in a range from about 0 mol% to about 10 mol%; ZnO is present in an amount in a range from about 0 mol% to about 10 mol%; and CaO, SrO, BaO and, F<->; or TiO2, ZrO2, and Cl<->; the glass article having an anneal point (DEG C) and a softening point (DEG C), and a relationship of (anneal point + softening point) / 2 in a range from about 625 DEG C to about 725 DEG C.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to U.S. Provisional Application No. 62 / 884,439, filed August 8, 2019, the contents of which are relied upon and incorporated herein by reference in their entirety. Background technique [0003] Glass is used in windows for its optical clarity and durability. Automotive or architectural windows (or glazing) may consist of a single (sheet-type) glazing known as a monolith, or two (sheet-type) glazings with a polymer interposed between them. A laminate of intermediate layers of material. Such glazing can be used as windshields, side lites, rear windows, sunroofs, and the like in automotive applications. Architectural applications may employ similar glazing in buildings, panels, walls, and the like. [0004] There is a trend towards the use of lightweight laminates to improve fuel economy. Some designs consist of thicker outer glazing and thinner inner glazing. In one conf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/097C03C3/087C03C27/10B60J1/00
CPCB60J1/00C03C3/087C03C3/097C03C27/10B32B17/10036B32B17/10119B32B17/10137B32B17/10761B32B17/10889C03C3/11C03C3/112C03C21/002B32B1/00B32B17/10091B32B17/101B32B2250/03B32B2250/40B32B2307/418B32B2605/006B60J1/004C03C4/18C03C2204/00
Inventor 丽莎·安妮·蒂兹·摩尔
Owner CORNING INC
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