Polymeric hydridochlorosilazanes and processes for their prepara

Details Polymeric hydridochlorosilazanes and processes for their prepara Polymeric hydridochlorosilazanes and processes for their prepara

1988-09-22

1991-04-16

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

528 31, C07F 710, C08G 7712

Patent

active

050084232

ABSTRACT:
The invention relates to novel polymeric hydridochlorosilazanes and a process for their preparation. The compounds according to the invention can be converted into polyhydridosilaznes by reaction with ammonia, and these can in turn be pyrolyzed to ceramic material containing silicon nitride. To prepare the polymeric hydridochlorosilazanes, oligohydridoalkylsilazanes (R.sup.1 SiHNH).sub.n are reacted with a dichlorohydridoalkylsilane R.sup.2 SiHCl.sub.2.

REFERENCES:
patent: 3408379 (1968-10-01), McVannel
patent: 4482689 (1984-11-01), Haluska
patent: 4535007 (1985-08-01), Cannady
patent: 4745205 (1988-05-01), Halusker
patent: 4806666 (1989-02-01), Pillot et al.

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