Non-catalyzed interfacial polycondensation polycarbonate process

Details Non-catalyzed interfacial polycondensation polycarbonate process Non-catalyzed interfacial polycondensation polycarbonate process

1981-05-06

1982-11-23

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528174, 528198, 528199, 528201, 528202, C08G 6362

Patent

active

043606598

ABSTRACT:
This invention relates to a non-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: 3160606 (1964-12-01), Dietrich et al.
patent: 3227681 (1966-01-01), Conix
patent: 3275601 (1966-09-01), Schnell et al.
patent: 3318845 (1967-05-01), Dietrich et al.
patent: 3376261 (1968-04-01), Jackson et al.
patent: 3879347 (1975-04-01), Serini et al.
patent: 3879348 (1975-04-01), Serini et al.
patent: 3989672 (1976-11-01), Vestergaard

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