PHOSPHONITRILIC POLYMERS STABLE AT HIGH TEMPERATURES.
Quarterly rept. no. 3, 1 May-31 Jul 64,
UNITED STATES RUBBER CO WAYNE N J
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The objective of the investigation is the development of a new thermoplastic and thermosetting resins from phosphonitrilic chloride trimer for high temperature electrical applications. Improved methods for introducing phenoxy blocking groups into the trimer were developed. Additional work was done on the amino derivatives. Copolymerization of phosphonitriles of reduced functionality with hydroquinone was studied, and the introduction of the isocyanate function into the trimer was accomplished. Author