Photosensitive, radiation sensitive, thermally sensitive and pressure sensitive silver sodalite materials

US4942119A · kind A · utility

Inventors

• Geoffrey Alan Ozin · Toronto, CA
• John Godber · Lawrenceville, US
• Andreas Stein · Schneverdingen, DE

Key dates

• Filing date: Aug 3, 1988
• Grant date: Jul 17, 1990
• Expiry date: Aug 3, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/163
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Silver sodalites with cages containing anions such as oxalate, formate, halide, carbonate, sulphide etc. have silver compositions entrapped or encapsulated in the cages of a microporous sodalite lattice. The cages of the sodalite lattice have very small but very even sizes e.g. 6.6 A diameters, so that the silver compositions trapped therein are also of very small but very even sizes. The silver compositions may be sensitive to the application of light, and may be sensitive to thermal or pressure stimuli. Thus, images produced by, for example, irradiation of the materials can be of very high resolution. The silver sodalite materials are prepared by a silver ion exchange process, from synthetic sodium sodalites.