Controlling crosslinking density and processing parameters of phthalonitriles

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United States of America Patent

PATENT NO 9815235
SERIAL NO

15265958

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Abstract

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Disclosed is a composition having: a diphthalonitrile compound having at least two phthalonitrile groups; a reactive plasticizer; and an amine curing agent. Also disclosed is a composition having: a diphthalonitrile compound having at least two phthalonitrile groups; a nonreactive plasticizer; and an amine curing agent. Also disclosed is a method of: providing a composition having a phthalonitrile compound; heating the composition to a processing temperature until the composition has a viscosity of 30-40 Pa·s at the processing temperature to form a partially cured composition; placing the partially cured composition into a material chamber of an extrusion machine; heating the partially cured composition and the material chamber to within 10° C. of the processing temperature; and extruding fiber from the extrusion machine.

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Patent Owner(s)

  • THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keller, Teddy M Fairfax Station, US 164 1523
Laskoski, Matthew Springfield, US 58 255
Saab, Andrew P Washington, US 7 19

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