Charge transport layers containing purified polycarbonates

Details Charge transport layers containing purified polycarbonates Charge transport layers containing purified polycarbonates

1990-02-09

1991-08-13

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 59, 430 96, G03G 5047

Patent

active

050395840

ABSTRACT:
A process for the purification of polycarbonates or copolymers thereof containing titanium catalyst residues, which comprises mixing a polycarbonate or copolymers thereof with a solvent; adding to the formed solution mixture a complexing component; admixing the resulting mixture with water; and subsequently separating the polycarbonate or copolymer product therefrom.

REFERENCES:
patent: 3492268 (1970-01-01), Baker
patent: 4415639 (1983-11-01), Horgan

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