Glass articles with low-friction coatings

US10034816B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Andrei Gennadyevich Fadeev · Elmira, US
• Theresa Chang · Riverside, US
• Dana Craig Bookbinder · Corning, US
• Santona Pal · Corning, US
• Chandan Kumar Saha · Franklin, US
• Steven Edward DeMartino · Corning, US
• Christopher Lee Timmons · Big Flats, US
• John Stephen Peanasky · Big Flats, US

Key dates

• Filing date: Dec 9, 2016
• Grant date: Jul 31, 2018
• Expiry date: Dec 9, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31623
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A pharmaceutical package may include a glass body enclosing an inner volume and having an exterior surface. The glass body may be formed from a borosilicate glass that meets the Type 1 criteria according to USP <660>or an alkali aluminosilicate glass having a Class HGA 1 hydrolytic resistance when tested according to the ISO 720-1985 testing standard. A coupling agent layer having a first thickness less than or equal to 100 nm may be disposed on the exterior surface of the glass body. A polymer layer having a second thickness of less than 50 nm may be positioned over the coupling agent layer. The exterior surface of the glass body with the coupling agent layer and the polymer layer may have a coefficient of friction less than or equal to 0.7.