Preparation method of polycarbonate resin

Details Preparation method of polycarbonate resin Preparation method of polycarbonate resin

1995-07-21

1997-02-25

Mosley, Terressa

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528196, 528198, 528200, 502150, 502200, 524107, 524115, 524155, 524158, 524165, 524745, 524746, C08G 6400, B01J 3100, B01J 2724

Patent

active

056060084

ABSTRACT:
The purpose of the present invention is to provide a method for manufacturing polycarbonate in which polycarbonate having outstanding color matching, outstanding thermal properties, particularly retention stability during molding, and outstanding water resistance can be effectively and easily manufactured.
In the method for manufacturing polycarbonate of the present invention, an aromatic dihydroxy compound and a carbonic acid ester are subjected to melt condensation polymerization in the presence of a catalyst composed of

REFERENCES:
patent: 5026817 (1991-06-01), Sakashita et al.
patent: 5306801 (1994-04-01), Sakashita et al.
patent: 5362840 (1994-11-01), King et al.
patent: 5466774 (1995-11-01), Kanno et al.

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