Process for the preparation of polycarbonate

Details Process for the preparation of polycarbonate Process for the preparation of polycarbonate

1994-12-09

1996-01-30

Seidleck, James J.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528196, 528198, C08G 6400

Patent

active

054880947

ABSTRACT:
A process for preparing substantially chloride-ion-free, high-molecular-weight, colorless and transparent polycarbonate by melt-polycondensing a dihydric phenol with a carbonic diester, which is substantially free from methyl phenyl carbonate or tin ion.

REFERENCES:
patent: 4948871 (1990-08-01), Fukuoka et al.
Database WPI, Week 9217, Derwent Publications, Ltd., London, GB; An 92-136812 & JP-A-4 077 549 (Daicel Chemical Ind. KK), 11 Mar. 1992, abstract.

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