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US 2025/0092276 A1Published application
Phthalonitrile-based high temperature resistive inks
AssigneeThe Boeing Company
InventorsAshley M. Dustin, Xin Guan, Michael J. Ventuleth, Andrew P. Nowak, Shahriar Alam, Stella Fors
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Abstract
Resistive inks and method of making resistive inks that utilize a phthalonitrile resin as a curable component in the inks are disclosed. In one example, a resistive ink is provided. The resistive ink comprises a solvent, a thermally-curable phthalonitrile-based resin dissolved in the solvent, and one or more conductive fillers. In some examples, the phthalonitrile resin can comprise a B-staged material.
Claims20
An article comprising:
- a substrate;
- and
- a resistive film on the substrate, the resistive film comprising a phthalonitrile polymer and a conductive filler dispersed in the phthalonitrile polymer.
A resistive ink, comprising:
- a solvent;
- a phthalonitrile resin dissolved in the solvent;
- and
- one or more conductive fillers,
- wherein the phthalonitrile resin is thermally curable.
2 more elements
A method of making a resistive film on a substrate, the method comprising:
- applying a resistive ink on the substrate, the resistive ink comprising a phthalonitrile resin, a solvent, and one or more conductive fillers;
- evaporating the solvent from the resistive ink;
- and
- curing the phthalonitrile resin to form a resistive film comprising a phthalonitrile polymer on the substrate by activating a catalyst contained in the resistive ink.
1 more element
Dependencies are inferred from the claim text.