Polysiloxazanes, silicon oxynitride fibers and processes for pro

Details Polysiloxazanes, silicon oxynitride fibers and processes for pro Polysiloxazanes, silicon oxynitride fibers and processes for pro

1989-07-19

1990-10-23

Straub, Gary P.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423324, C01B 3320, C01B 1514

Patent

active

049650580

ABSTRACT:
Novel polysiloxazanes comprising --SiH.sub.2).sub.n NH-- and --SiH.sub.2).sub.m O-- as the main repeating units are provided. The polysiloxazanes are produced by reacting a dihalosilane or an adduct thereof with a Lewis base, with ammonia and water vapor or oxygen. From the polysiloxazane, novel silicon oxynitride shapes can be produced and the silicon oxynitride shapes are essentially composed of silicon, nitride (5 mols % or more) and oxygen (5 mol % or more).

REFERENCES:
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patent: 4678688 (1987-07-01), Itoh et al.
patent: 4788309 (1988-11-01), Laine et al.
patent: 4833107 (1989-05-01), Kaya et al.
Okamura et al., The Synthesis Oxynitride Fibers by Nitridation of Polycarbosilane, Chemistry Letters, pp. 2059-2060, 1984, The Chemical Society of Japan.

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