Method for forming hafnium carbide and hafnium nitride...

Details Method for forming hafnium carbide and hafnium nitride... Method for forming hafnium carbide and hafnium nitride...

2007-01-25

2009-08-11

Heincer, Liam J (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From aluminum- or heavy metal-containing reactant

C556S061000

Reexamination Certificate

active

07572881

ABSTRACT:
Hafnium containing preceramic polymer is made through the reaction of hafnium halide compound with any of the following compounds: ethylene diamine, dimethyl ethylene diamine, piperazine, allylamine and or polyethylene-imine.

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