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US 4,707,556 AGranted
Boron nitride polymeric precursors
AssigneeUltrasystems Defense and Space, Inc.
InventorsKazimiera J. L. Paciorek, Reinhold H. Kratzer, David H. Harris, Wilfried Krone-Schmidt
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Abstract
Silyl containing cyclic borazines are prepared by reacting chloroborazine with disilazanes.
Claims4
The polymer ##STR3## where R is methyl, ethyl propyl, or butyl of the general formula C.sub.n H.sub.2n+1 and where x is a positive integer.
The pentamer ##STR4##
Dependencies are inferred from the claim text.