Process for preparing polycarbonates using amino guanidine or amino amidine catalysts
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United States of America Patent
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Apr 14, 1981
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N/A
app pub date -
Dec 28, 1979
filing date -
Dec 28, 1979
priority date (Note) -
Expired
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Abstract
An interfacial polymerization process for preparing high molecular weight aromatic polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of an amino amidine or amino guanidine.
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