Polymeric hydridosilazanes and processes for their preparation,

Details Polymeric hydridosilazanes and processes for their preparation, Polymeric hydridosilazanes and processes for their preparation,

1990-03-12

1991-11-19

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501 96, 264 62, 264 65, C04B 3556, C04B 3558

Patent

active

050666231

ABSTRACT:
The invention relates to novel polymeric hydridosilazanes, processes for their preparation and their use for the preparation of ceramic material containing silicon nitride. To prepare the polymeric hydridosilazanes, polymeric hydridochlorosilazanes are reacted with NH.sub.3. To prepare the ceramic material containing silicon nitride, the polymeric hydridosilazanes are then pyrolyzed.

REFERENCES:
patent: 4482669 (1984-07-01), Seyferth et al.
patent: 4595775 (1986-06-01), Adkles
patent: 4774312 (1988-09-01), Burns
patent: 4835238 (1989-05-01), Burns
Patent Abstracts of Japan, Aug. 1986.
Australian Application for Standard Patent No. 8517818, 1985.

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