Polymeric hydridosilazanes, processes for the preparation thereo

Details Polymeric hydridosilazanes, processes for the preparation thereo Polymeric hydridosilazanes, processes for the preparation thereo

1988-12-23

1990-07-03

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

525474, 528 33, 528 37, 528 38, C08G 7720

Patent

active

049392255

ABSTRACT:
Polymeric hydridosilazanes, processes for the preparation thereof, silicon nitride-containing ceramic materials which can be prepared therefrom, and the preparation thereof.
The invention relates to novel polymeric hydridosilazanes, their preparation, their conversion into silicon nitride-containing ceramic material, and this material itself. To prepare the polymeric hydridosilazanes, polymeric hydridothiosilazanes are reacted with NH.sub.3. To prepare the silicon nitride-containing ceramic material, the polymeric hydridosilazanes are then pyrolyzed.

REFERENCES:
patent: 4397828 (1983-08-01), Seyferth et al.
patent: 4482669 (1984-11-01), Seyferth et al.
patent: 4540803 (1985-09-01), Cannady
patent: 4543344 (1985-09-01), Cannady
patent: 4595775 (1986-06-01), Arkles
R. R. Wills et al., Ceramic Bulletin 62, 904-915 (1983).

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