Preceramic metallopolysilanes

Details Preceramic metallopolysilanes Preceramic metallopolysilanes

1989-12-11

1990-07-31

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 87, 501 92, 501 97, 501 98, C04B 3556

Patent

active

049450727

ABSTRACT:
A process for the preparation of preceramic metallopolysilanes is described. The process consists of reacting polysilanes with metallic compounds from which can be generated open coordination sites associated with the metallic element. Such open coordination sites can be generated by the reduction of the metallic compound with an alkali metal reducing agent, or by heating a metallic compound which has thermally labile ligands, or by the UV irradiation of a carbonyl-containing metallic compound. The metals which can be incorporated into the polysilane include aluminum, boron, chromium, molybdenum, tungsten, titanium, zirconium, hafnium, vanadium, niobium, and tantalum. These metallopolysilanes are useful, when fired at high temperatures, to form metal-containing ceramic materials.

REFERENCES:
patent: 4260780 (1981-04-01), West et al.
patent: 4298559 (1981-11-01), Baney
patent: 4310482 (1982-01-01), Baney
patent: 4310651 (1982-01-01), Baney et al.
patent: 4314956 (1982-02-01), Baney
patent: 4762895 (1988-08-01), Chandra
West et al., 25 Poly. Preprints 4(1984).
Kool et al. 320 J. Organomettalic Chem. 37(1987).

Affiliated with

Also associated with

Rating

Preceramic metallopolysilanes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preceramic metallopolysilanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preceramic metallopolysilanes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1398740