United States of America As Represented by the Secretary of the Air Force

Ultra Systems Limited

Mark E Smythe

Kazimiera J Paciorek

Reinhold H Kratzer

David H Harris

James H Nakahara

Patrick F Kimble

B-triamino-N-tris(trialkylsilyl)borazines, their condensation products, and the transformation of these into preceramic polymers amenable to fiber drawing and ultimately boron nitride fiber formation.

Boron nitride preceramic polymers

This invention concerns itself with a novel class of dihalodiphospha-s-triazines as exemplified by the compound 1,3-bis[phenylchloro-phospha]-5-perfluoro-n-heptyl-2,4,6-triazines as well as their thio and azido substituted derivatives.

Halo-substituted diphospha-s-triazines and their derivatives

This invention concerns itself with a class of novel dihalo-substituted monophospha-s-triazines as exemplified by the compounds 1-dichlorophospha-3,5-bis(perfluoro-n-heptyl)-2,4,6-triazine and 1-dichlorophospha-3,5-bis[C.sub.3 F.sub.7 OCF(CF.sub.3)CF.sub.2 OCF(CF.sub.3)]-2,4,6-triazine, as well as their thio and azido derivatives.

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Pasadena, CA, United States of America

Mark E Smythe