Invention Grant
- Patent Title: Glass article
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Application No.: US15129278Application Date: 2015-03-25
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Publication No.: US11413848B2Publication Date: 2022-08-16
- Inventor: Thomas Michael Cleary , Guangli Hu , John Christopher Mauro , Douglas Miles Noni, Jr. , 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/US2015/022413 WO 20150325
- International Announcement: WO2015/148618 WO 20151001
- Main IPC: C03C17/02
- IPC: C03C17/02 ; B32B7/027 ; B32B17/06

Abstract:
A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. A coefficient of thermal expansion (CTE) of the core layer is greater than a CTE of the cladding layer. The core layer has a tensile stress, and the cladding layer has a compressive stress. A retained strength of the glass article is a strength determined after abrasion of an outer surface of the glass article with 1 mL of 90 grit SiC particles for 5 seconds at an abrasion pressure, and a ratio of the retained strength at an abrasion pressure of 25 psi to the retained strength at an abrasion pressure of 5 psi is at least about 0.3.
Public/Granted literature
- US20170174564A1 GLASS ARTICLE Public/Granted day:2017-06-22
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