Interfacial polycondensation polycarbonate process with quaterna

Details Interfacial polycondensation polycarbonate process with quaterna Interfacial polycondensation polycarbonate process with quaterna

1983-02-02

1984-09-11

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528171, 528196, 528198, C08G 6362

Patent

active

044711050

ABSTRACT:
This invention relates to an improved interfacial polycondensation polycarbonate process wherein a dihydric phenol is reacted with a carbonyl halide in the presence of a quaternary-phosphonium amino halide catalyst.

REFERENCES:
patent: 3227681 (1966-01-01), Conix
patent: 3275601 (1966-09-01), Schnell et al.
patent: 3879347 (1975-04-01), Serini et al.
patent: 3879348 (1975-04-01), Serini et al.
patent: 4384108 (1983-05-01), Campbell et al.

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