Thin lithium-aluminosilicate glass for three dimensional precision molding

US9199876B2 · kind B2 · utility

Assignee

• SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO. LTD. · CN

Inventors

• Chong Wang · Dongguan, CN
• Jose Zimmer · Ingelheim am Rhein, DE
• Feng He · Nanhu, CN
• Gerhard Lautenschlaeger · Jena, DE
• Armin Vogl · Jena, DE

Key dates

• Filing date: Feb 22, 2011
• Grant date: Dec 1, 2015
• Expiry date: Nov 2, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/265
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A thin lithium-aluminosilicate glass is provided. The glass is suitable for three dimensional precision molding and suitable for toughening, wherein after toughening, the glass has a center tension smaller than 50 Mpa, a surface compressive stress of 600-1200 Mpa, and a bending strength of up to 500 MPa. The glass also has a transition point lower than 550° C.