Polysilazanes, processes for their preparation, ceramic material

Details Polysilazanes, processes for their preparation, ceramic material Polysilazanes, processes for their preparation, ceramic material

1990-03-21

1991-07-09

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

264 291, 264 292, 264 296, 264 56, 264 60, 427228, 501 92, C08G 7704

Patent

active

050307029

ABSTRACT:
The invention relates to novel polysilazanes, their preparation, their further processing to ceramic material containing silicon nitride and this material itself. To prepare the polysilazanes, Si,Si'-diorganyl-N-alkyltetrachloro-disilazanes of the formula RSiCl.sub.2 -NR'-SiCl.sub.2 R are reacted with ammonia. The polysilazanes can then be pyrolyzed to ceramic material containing silicon nitride. The polysilazanes according to the invention dissolve in the customary aprotic solvents.

REFERENCES:
patent: 4404153 (1983-09-01), Gaul, Jr.
patent: 4725660 (1988-02-01), Serita et al.
patent: 4835238 (1989-05-01), Burns

Affiliated with

Also associated with

Rating

Polysilazanes, processes for their preparation, ceramic material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polysilazanes, processes for their preparation, ceramic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polysilazanes, processes for their preparation, ceramic material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-618888