Crosslinkable polycyclic polycarbonate oligomers and method for

Details Crosslinkable polycyclic polycarbonate oligomers and method for Crosslinkable polycyclic polycarbonate oligomers and method for

1986-10-01

1988-12-27

Anderson, Harold D.

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

Synthetic resins

From reactant having a halogen atom or oxygen single bonded...

528196, 528198, 528371, C08G 6362

Patent

active

047941600

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: 2763672 (1956-09-01), Young et al.
patent: 2765343 (1956-10-01), Benton et al.
patent: 3716364 (1973-02-01), Gogola
patent: 4616077 (1986-10-01), Silva

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