Crosslinkable polycyclic polycarbonate oligomers and methods...

Details Crosslinkable polycyclic polycarbonate oligomers and methods... Crosslinkable polycyclic polycarbonate oligomers and methods...

C - Chemistry, Metallurgy

07

D

402/177, 260/327

C07D 323/00 (2006.01) C07D 341/00 (2006.01) C08G 64/02 (2006.01) C08G 64/04 (2006.01) C08G 64/28 (2006.01) C08G 75/28 (2006.01)

Patent

CA 1279065

CROSSLINKABLE POLYCYCLIC POLYCARBONATE OLIGOMERS AND METHODS FOR THEIR PREPARATION AND USE Abstract Polycyclic polycarbonate (or thiol analog) oligomers are prepared from a mixture of at least one bishaloformate with at least one tetraphenol, or thio analogs thereof. Such mixture may also contain at least one dihydroxy or dimercapto compound. The oligomers are formed by the reaction of such mixtures with alkali metal hydroxides and various amines. The polycyclic oligomer mixtures may be converted to crosslinked polycarbonates or their thiol analogs.

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