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US 2015/0144848 A1Published application
Low radio frequency loss, static dissipative adhesives
AssigneeThe Boeing Company
InventorsLynn Edward Long, Randall Jay Moss
Life of this patent
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Abstract
Low radio frequency loss, static dissipative adhesives are disclosed that have at most 2 percent by weight amorphous carbon dispersed in a cyanate ester resin. The adhesive has an electrical conductivity that dissipates static charge with an electrical resistivity of about 3.0×105 ohms to about 3.0×1010 ohms, and low radio frequency loss with a dielectric constant of about 1.3 to about 1.7 and a loss tangent of at most 0.006 measured at 2 gigahertz.
Claims20
An adhesive comprising:
- at most 2 percent by weight amorphous carbon dispersed in a cyanate ester resin;
- wherein the adhesive has an electrical conductivity that dissipates static charge, the electrical conductivity being an electrical resistance of about 3.0×105 ohms to about 3.0×1010 ohms;
- wherein the adhesive has low radio frequency loss, the low radio frequency loss being a dielectric constant of about 1.3 to about 1.7 and a loss tangent of at most 0.006 measured at 2 gigahertz.
An adhesive consisting essentially of:
- at most 2 percent by weight amorphous carbon dispersed in a cyanate ester resin;
- wherein the adhesive has an electrical conductivity that dissipates static charge, the electrical conductivity being an electrical resistance of about 3.0×105 ohms to about 3.0×1010 ohms;
- wherein the adhesive has low radio frequency loss, the low radio frequency loss being a dielectric constant of about 1.3 to about 1.7 and a loss tangent of at most 0.006 measured at 2 gigahertz.
Dependencies are inferred from the claim text.