Invention Grant
- Patent Title: Glass laminate with buried stress spikes to arrest cracks and methods of making the same
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Application No.: US17632086Application Date: 2020-07-31
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Publication No.: US11697617B2Publication Date: 2023-07-11
- Inventor: Douglas Clippinger Allan , Vladislav Yuryevich Golyatin , Petr Gorelchenko , Jason Thomas Harris , Jin Su Kim , Peter Joseph Lezzi , Rostislav Vatchev Roussev , Natesan Venkataraman
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: US NY Corning
- Agent Daniel J. Greenhalgh
- International Application: PCT/US2020/044436 2020.07.31
- International Announcement: WO2021/025981A 2021.02.11
- Date entered country: 2022-02-01
- Main IPC: C03C27/06
- IPC: C03C27/06 ; C03C21/00 ; B32B17/06

Abstract:
A laminated glass article comprises a core layer comprising a core glass composition, and a cladding layer directly adjacent to the core layer and comprising a clad glass composition. A stress of the cladding layer increases with increasing distance from an outer surface of the cladding layer from a compressive stress to a tensile stress, transitions to a compressive stress as a step-change at an interface region between the core layer and the cladding layer, and increases with increasing distance from the interface region to a center of the core layer from the compressive stress to a tensile stress.
Public/Granted literature
- US20220274871A1 GLASS LAMINATE WITH BURIED STRESS SPIKES TO ARREST CRACKS AND METHODS OF MAKING THE SAME Public/Granted day:2022-09-01
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