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US 5,312,887 AGranted
Dicyanate prepolymers, use and preparation thereof
AssigneeInternational Business Machines Corporation
InventorKonstantinos I. Papathomas
Life of this patent
Estimating the term…
Abstract
Amorphous prepolymers from composition containing bisphenol P dicyanate and bisphenol M dicyanate as well as the cured polymers therefrom are prepared. The prepolymers are especially useful for circuit boards and structural composites.
Claims20
An amorphous prepolymer from a composition containing (a) 1,4-bis (p-hydroxy cumyl) benzene);
- and (b) 1,3-bis (para hydroxy cumyl) benzene.
Dependencies are inferred from the claim text.