Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane

Details Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane

1990-08-15

1992-02-04

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528171, 528196, C08G 6406

Patent

active

050861590

ABSTRACT:
Copolycarbonates derived from known bisphenols and small quantities of dihydroxydiphenyl cycloalkanes corresponding to formula (I) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, preferably phenyl, and C.sub.7 -C.sub.12 aralkyl, preferably phenyl-C.sub.1 -C.sub.4 -alkyl, in particular benzyl,

REFERENCES:
patent: 4554309 (1985-11-01), Mark et al.

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