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

1990-07-18

1992-01-07

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 19, 528 21, 528 23, 528 31, 525474, 423324, 423325, C08G 7700

Patent

active

050793233

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 mol % or more) and oxygen (5 mol % or more).

REFERENCES:
patent: 4869858 (1989-09-01), Funayama et al.
patent: 4965058 (1990-10-01), Funayama et al.

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