Process for the production of polycarbonate solutions

Details Process for the production of polycarbonate solutions Process for the production of polycarbonate solutions

1988-02-18

1989-10-10

Ivy, C. Warren

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

Synthetic resins

Treating polymer containing material or treating a solid...

528198, C08G 6374, C08G 6362

Patent

active

048733148

ABSTRACT:
The invention relates to a process for the production of solutions of polycarbonates in organic inert solvents which is characterized in that from 2.5 ppm to 100 ppm phosphorous acid, based on the weight of the diphenol used for polycarbonate production, are added to the emulsion of the two phases obtainable by the known two-phase interfacial process and the emulsion is worked up in known manner.

REFERENCES:
patent: 3028365 (1962-04-01), Schnell et al.
patent: 3275601 (1966-09-01), Schnell et al.
patent: 3305520 (1967-02-01), Fritz et al.
patent: 3322719 (1967-05-01), Peilstocker
patent: 3404122 (1968-10-01), Fritz et al.
patent: 3492268 (1970-01-01), Baker
patent: 3943101 (1976-03-01), Vestergaard et al.

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