Crosslinkable polycyclic polycarbonate oligomer and methods for

Details Crosslinkable polycyclic polycarbonate oligomer and methods for Crosslinkable polycyclic polycarbonate oligomer and methods for

1988-06-20

1989-12-19

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528171, 528174, 528196, 528198, 528370, 528371, 528374, C08G 6362

Patent

active

048884111

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.

REFERENCES:
patent: 4794160 (1988-12-01), Shannon et al.

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