Catalyzed interfacial polycondensation polycarbonate process

Details Catalyzed interfacial polycondensation polycarbonate process Catalyzed interfacial polycondensation polycarbonate process

1981-04-27

1983-01-11

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528196, 528199, C08G 6362

Patent

active

043683150

ABSTRACT:
This invention relates to a catalyzed equilibrated interfacial polycondensation aromatic polycarbonate process comprising forming an equilibrated substantially uniform agitated two-phase admixture containing an organic phase containing an inert solvent, and an aqueous phase containing a solution of an aromatic dihydroxy compound and a strong base, adding and reacting a carbonyl halide with the aromatic dihydroxy compound to form an aromatic polycarbonate, and separating and recovering the solid aromatic polycarbonate particulate from the liquid aqueous phase.

REFERENCES:
patent: 3153008 (1964-10-01), Fox
patent: 3318845 (1967-05-01), Dietrich et al.
patent: 3989672 (1976-11-01), Vestergaard
patent: 4201721 (1980-05-01), Hallgren

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