Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Patent
1989-04-21
1992-07-07
Shaver, Paul F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
556 9, 556 10, 556 11, 556173, 556402, 556405, 556410, 556415, 556435, 556451, 501 88, 501 96, 501 97, 534 11, 534 15, 578 15, 578 16, 578 19, 578 29, 578 31, C07F 708, C07F 710
Patent
active
051284944
ABSTRACT:
A method is provided for preparing preceramic polymers and silicious ceramic materials which derive therefrom. The preceramic polymers are polysiloxanes which are synthesized by catalytically activating Si-H bonds in a hydridosiloxane starting material and replacing the activated hydrogen atoms with non-hydrogen substituents. These preceramic polysiloxanes are pyrolyzed in a selected atmosphere to give the desired ceramic product. Ceramic products which may be prepared by this technique include silica, silicon oxynitride, silicon carbide, and metal silicates.
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Reed Dianne E.
Shaver Paul F.
SRI - International
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