Electrochromic safety glazing

US6639708B2 · kind B2 · utility

Assignees

• SCHOTT NORTH AMERICA, INC. · US
• Magna Donnelly Corporation · US

Inventors

• Yasser Elkadi · Tucson, US
• Anoop Agrawal · Tucson, US
• Torsten Holdmann · Witzenhausen, DE

Key dates

• Filing date: Mar 12, 2002
• Grant date: Oct 28, 2003
• Expiry date: Mar 29, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2202/28
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

An electrochromic device is achieved that exhibits the characteristics of impact-resistant safety glass by subjecting a solid electrolyte sheet material and a peripheral sealant material sandwiched between substrates to heat and pressure such that the electrolyte bonds to the surfaces of the substrates with an adhesion of at least 1.8 kg/linear cm width causing the electrolyte to exhibit a tensile strength of at least 5 kg/cm2.