Polycarbonate, copolycarbonate resin compositions and preparing

Details Polycarbonate, copolycarbonate resin compositions and preparing Polycarbonate, copolycarbonate resin compositions and preparing

1998-03-13

1999-03-09

Mosley, Terressa

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C08G 6400

Patent

active

058802487

ABSTRACT:
in the amount of 50-99 mole %: ##STR1## R1 and R2 are hydrogen atoms or monovalent hydrocarbon groups, and R3 is a bivalent hydrocarbon group.) The Rockwell hardness (M scale) of this polycarbonate should preferably be 45-90.

REFERENCES:
patent: 3489716 (1970-01-01), Calkins et al.
patent: 3879347 (1975-04-01), Serini et al.
patent: 5646233 (1997-07-01), Sakashita et al.

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