Strengthened glass containers resistant to delamination and damage

US10117806B2 · 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
• Christopher Lee Timmons · Big Flats, US
• Natesan Venkataraman · Corning, US
• Ronald Luce Verkleeren · Horseheads, US
• Dana Craig Bookbinder · Corning, US

Key dates

• Filing date: Nov 8, 2013
• Grant date: Nov 6, 2018
• Expiry date: Sep 17, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2218/111
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The glass containers described herein are resistant to delamination, have improved strength, and increased damage resistance. In one embodiment, a glass container 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 body may also have 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. A lubricous coating may be positioned around at least a portion of the outer surface of the body, such that the outer surface of the body with the lubricous coating has a coefficient of friction less than or equal to 0.7.