Method of producing copolymerized polycarbonates

Details Method of producing copolymerized polycarbonates Method of producing copolymerized polycarbonates

1993-09-03

1995-01-24

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528171, 528176, 528179, 528180, 528198, 528199, 528200, C08G 6400

Patent

active

053843886

ABSTRACT:
[Purpose] The object of the present invention is to provide a method of product copolymerized polycarbonates having improved flow and formability, in addition to excellent mechanical properties, heat resistance, transparency, and color tone.
[Constitution] A method of producing copolymerized polycarbonates by melt polycondensation of two or more aromatic dihydroxy compounds with a carbonate diester, characterized in that

REFERENCES:
patent: 3022272 (1962-02-01), Schnell et al.
patent: 3250744 (1966-05-01), Schnell et al.
patent: 4435561 (1984-03-01), Lai et al.
Chemical Abstracts, vol. 64, No. 10, 9 May 1966, Columbus, Ohio, US, abstract No. 14290h, E. Jaarv. `Synthesis of resorcinol polycarbonates` * abstract* & Tr. Tallinsk, Poltekhn, Inst., Ser. A No. 215, 1964, pp. 71-77.
Chemistry and Physics of Polycarbonates by Hermann Schnell--pp. 66-73 (1964).

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