Method for preparing organic silazane polymers and method for pr

Details Method for preparing organic silazane polymers and method for pr Method for preparing organic silazane polymers and method for pr

1991-07-08

1993-05-11

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

264 65, C04B 3556, C04B 3558

Patent

active

052100588

ABSTRACT:
An organic silazane polymer is prepared by reacting ammonia gas with a mixture of a trihalosilane and a monohalosilane, for example, methyltrichlorosilane and trimethylchlorosilane in an organic solvent to form a silazane compound, and heating the silazane compound at 200 to 350.degree. C. for polymerization. By melting, shaping, infusibilizing, and firing the silazane polymer, there is obtained a ceramic material.

REFERENCES:
patent: 2579416 (1951-12-01), Cheronis
patent: 2579418 (1951-12-01), Cheronis
patent: 3853567 (1964-12-01), Verbeek
patent: 4705837 (1967-11-01), Seyferth et al.
patent: 4833107 (1989-05-01), Kaya et al.
patent: 4929704 (1990-05-01), Schwark
patent: 5010158 (1991-04-01), Colombier et al.
Chemical Abstracts, vol. 66, No. 8, Jan. 2, 1967, Columbus, Ohio, US; abstract No. 29212U, Eugene G. Rochow: "Silazane Polymers", p. 2811.

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