Process for the preparation of aromatic polycarbonates by the ph

Details Process for the preparation of aromatic polycarbonates by the ph Process for the preparation of aromatic polycarbonates by the ph

1980-09-16

1983-01-04

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528200, C08G 6362

Patent

active

043673309

ABSTRACT:
The present invention relates to an improvement in the phase boundary polycondensation process for the preparation of aromatic, in particular thermoplastic, polycarbonates comprising carrying out the process in the presence of a saturated solution of alkali metal salts.

REFERENCES:
patent: 3028365 (1962-04-01), Schnell et al.
patent: 3035020 (1962-05-01), Fry
patent: 3275601 (1956-09-01), Schnell et al.
patent: 3530094 (1970-09-01), Schnell et al.
patent: 3674740 (1972-07-01), Vernaleken et al.
patent: 3879348 (1975-04-01), Serini et al.
patent: 3912687 (1975-10-01), Haupt et al.
patent: 4025489 (1977-05-01), Bailey et al.
patent: 4038252 (1977-07-01), Vernaleken et al.

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