CYANATE RESIN BLENDS AND RADOMES INCLUDING THEM

Certain embodiments are directed to cyanate resin blends comprising, for example, a mixture of a cyanate monomer and a cyanate oligomer. The resin blends are effective to provide a dielectric constant of less than 2.7, a glass transition temperature of at least 150°C and a moisture absorption of les...

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Bibliographische Detailangaben
Hauptverfasser:	HERSMAN, MARIE J, PADWAL, AJAY, CHEON, KAPSOO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ANALOGOUS ARRANGEMENTS USING OTHER WAVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GENERAL PROCESSES OF COMPOUNDING LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MEASURING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Certain embodiments are directed to cyanate resin blends comprising, for example, a mixture of a cyanate monomer and a cyanate oligomer. The resin blends are effective to provide a dielectric constant of less than 2.7, a glass transition temperature of at least 150°C and a moisture absorption of less than 1.5%. Radomes using the resin are also described. Certains modes de réalisation concernent des mélanges de résines de cyanate comprenant, par exemple, un mélange d'un monomère de cyanate et d'un oligomère de cyanate. Les mélanges de résines sont efficaces pour fournir une constante diélectrique inférieure à 2,7, une température de transition vitreuse d'au moins 150°C et une absorption d'humidité inférieure à 1,5%. L'invention concerne également des radomes utilisant la résine.