Process for preparing polycarbonates using nitrogen crown-cyclic

Details Process for preparing polycarbonates using nitrogen crown-cyclic Process for preparing polycarbonates using nitrogen crown-cyclic

1979-12-28

1981-05-12

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528175, 528182, 528198, C08G 6362

Patent

active

042673054

ABSTRACT:
An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a nitrogen-containing crown-cyclic compound.

REFERENCES:
patent: 4116887 (1978-09-01), Lehn et al.

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