Method for the preparation, of copolymeric polycarbonates

Details Method for the preparation, of copolymeric polycarbonates Method for the preparation, of copolymeric polycarbonates

1993-12-21

1995-03-28

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528196, 528199, C08G 6400

Patent

active

054018269

ABSTRACT:
A copolymeric polycarbonate containing repeating constituent units having formula [I] below and repeating constituent units having formula [II] below in a molar ratio of from 98:2 to 40:60. ##STR1## The above-described copolymeric polycarbonates have excellent resistance to chemicals, heat resistance and flame retardancy without compromising the impact resistance and good hues intrinsic to polycarbonates.

REFERENCES:
patent: 5151491 (1992-09-01), Sakashita et al.

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