Process for producing copolyester-carbonates

Details Process for producing copolyester-carbonates Process for producing copolyester-carbonates

1979-04-26

1980-12-09

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

521182, 521189, 525439, 525461, 528173, 528176, 528190, 528191, 528193, 528194, 528370, 528371, 528372, C08G 6364

Patent

active

042385970

ABSTRACT:
A process is disclosed for producing copolyester-carbonates employing diacid chlorides and following a pH processing profile. The copolyester-carbonates produced exhibit physical properties similar to those of high molecular weight aromatic polycarbonates.

REFERENCES:
patent: 3028364 (1962-04-01), Conix et al.
patent: 3030331 (1962-04-01), Goldberg
patent: 3169121 (1965-02-01), Goldberg
patent: 3989672 (1976-11-01), Vestergaard
patent: 4156069 (1979-05-01), Prevorsek et al.
Prevorsek et al., Synthesis of Poly(ester Carbonate)Copolymers, Allied Chemical Corporation, Corporate Research Center, 4/79.

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