Stabilization of highly heat distortion resistant polycarbonates

Details Stabilization of highly heat distortion resistant polycarbonates Stabilization of highly heat distortion resistant polycarbonates

1992-01-03

1993-03-16

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524109, C08K 506

Patent

active

051944677

ABSTRACT:
Highly heat distortion resistant moulding compositions are disclosed comprising an aromatic polycarbonate having molecular weights Mw (weight average) of a least 10,000, containing bifunctional carbonate structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.12 -aralkyl,

REFERENCES:
patent: 4342681 (1982-08-01), Idel et al.
patent: 4375525 (1983-03-01), Idel et al.
patent: 4982014 (1991-01-01), Freitag et al.

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