Silicon boron nitride ceramic and precursor compounds, a process for their preparation and their use

US5312942A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Martin Jansen · Bonn, DE
• Hans-Peter Baldus · Burscheid, DE
• Oliver Wagner · Ludwigshafen, DE

Key dates

• Filing date: May 20, 1993
• Grant date: May 17, 1994
• Expiry date: May 20, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B41/5066
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Silicon boron nitride ceramics are produced from polyborosilizanes obtained from polymerized Cl.sub.3 Si--NH--BClX wherein X is --Cl or --NH--Si--Cl.sub.3.