Glass containers with delamination resistance and improved strength

US9272946B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Theresa Chang · Riverside, US
• Paul Stephen Danielson · Dundee, US
• Steven Edward DeMartino · Corning, US
• Andrei Gennadyevich Fadeev · Elmira, US
• Robert Michael Morena · Caton, US
• Santona Pal · Corning, US
• John Stephen Peanasky · Big Flats, US
• Robert Anthony Schaut · Corning, US
• Natesan Venkataraman · Corning, US
• Ronald Luce Verkleeren · Horseheads, US

Key dates

• Filing date: Nov 8, 2013
• Grant date: Mar 1, 2016
• Expiry date: Nov 8, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/315
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The glass containers described herein have at least two performance attributes selected from resistance to delamination, improved strength, and increased damage resistance. In one embodiment, a glass container with resistance to delamination and improved strength may include a body having an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface. At least the inner surface of the body may have a delamination factor less than or equal to 10. The glass container may further include a compressively stressed layer extending from the outer surface of the body into the wall thickness. The compressively stressed layer may have a surface compressive stress greater than or equal to 150 MPa.