Melt preparation of copolycarbonate with alkaline compound catal

Details Melt preparation of copolycarbonate with alkaline compound catal Melt preparation of copolycarbonate with alkaline compound catal

1992-09-14

1994-02-15

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

524183, 524405, 524611, 528199, 528204, C08G 6430

Patent

active

052868346

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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