Process for producing polycarbonate

Details Process for producing polycarbonate Process for producing polycarbonate

1993-03-16

1994-09-20

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528171, 528202, 528370, C08G 6400, C08G 6368

Patent

active

053490428

ABSTRACT:
There is disclosed a process for producing a polycarbonate which comprises reacting, by the melt method, (A) a dihydroxy compound with (B) a carbonic diester having a chloride contempt derived from chloroformate group of not more than a prescribed level. According to the above process, a polycarbonate which is excellent in transparency, tone of color, heat resistance and water resistance can be efficiently and economically produced.

REFERENCES:
patent: 5026817 (1991-06-01), Sakashita et al.

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