Polymeric hydridosilazanes and processes for their preparation a

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

1988-09-22

1990-06-05

Marquis, Melvyn I.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 10, 528 33, 501 92, C08F28300

Patent

active

049315137

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:
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patent: 4540803 (1985-09-01), Cannady
patent: 4543344 (1985-09-01), Cannady
patent: 4595775 (1986-06-01), Arkles
patent: 4720532 (1988-01-01), Seyferth et al.
patent: 4725660 (1988-02-01), Serita et al.
patent: 4771118 (1988-09-01), Takamizawa et al.
R. R. Wills et al., Amer. Ceram. Soc. Bull., 62, 904-911, 915 (1983).

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