Polycarbonate from bis[4'-(4-hydroxyphenyl)-phenyl]alkanes

Details Polycarbonate from bis[4'-(4-hydroxyphenyl)-phenyl]alkanes Polycarbonate from bis[4'-(4-hydroxyphenyl)-phenyl]alkanes

1992-12-11

1994-01-25

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528204, 568719, C08G 6406

Patent

active

052816893

ABSTRACT:
Bis[4-(4-hydroxyphenyl)-phenyl]alkanes, as illustrated by 2,2-bis[4-(4-hydroxyphenyl)-phenyl]propane, may be prepared by the reaction of a bisphenol A ester or a similar compound with a p-trialkyltin-substituted anisole, followed by demethylation with a Lewis acid such as boron tribromide. Polycarbonates prepared therefrom are ductile and have high glass transition temperatures.

REFERENCES:
patent: 3466260 (1969-09-01), Bostian et al.
patent: 5145939 (1992-09-01), Nye

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