Polycarbonate copolymer and method for production thereof

Details Polycarbonate copolymer and method for production thereof Polycarbonate copolymer and method for production thereof

1993-03-15

1994-04-26

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528171, 528174, 528196, 528202, 528204, C08G 6426

Patent

active

053068025

ABSTRACT:
Disclosed herein is a polycarbonate copolymer comprising repeating units respectively made of a bisphenol A and a tetrahalogenobisphenol A and having a trihalogenophenoxy group as an end group at the terminal, particularly both terminals thereof and a method for efficiently producing said polycarbonate copolymer. This polycarbonate copolymer is superior in impact resistance, flame retardance, molding thermostability and the like, is good in hydrolytic resistance, is much less liable to cause a mold rust and has high quality. Therefore, this polycarbonate copolymer will be extensively used in various industrial materials, for example as the flame retardant parts for household electric appliances, office automation apparatuses and the like.

REFERENCES:
patent: 4831100 (1989-05-01), Komatsu et al.
patent: 5185425 (1993-02-01), Komatsu

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