Synthesis of oligomeric cyanate esters

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having a nitrogen atom directly bonded to the...

Reexamination Certificate

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C528S086000, C528S196000, C528S208000, C528S368000, C528S423000, C528S480000, C528S486000, C528S488000, C528S495000

Reexamination Certificate

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07087707

ABSTRACT:
A cyanate ester system is disclosed. An aryl ether oligomer may be made from a dihydroxyaromatic compound and a dihaloaromatic compound in the presence of a base. The oligomer is then reacted with a cyanide compound in the presence of a base to form the cyanate ester shown below. The cyanate ester may then be cross-linked to a thermoset having triazine ring cross-links.

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