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US 5,210,122 AGranted
Near-infrared stabilized copolyestercarbonate compositions
AssigneeGeneral Electric Company
InventorsLuca P. Fontana, Kenneth F. Miller, Edgar E. Bostick
Life of this patent
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Abstract
A polymeric composition having aromatic polycarbonate or aromatic polycarbonate like properties which process at significantly lower temperatures than aromatic polycarbonate in admixture with an additive which is incompatible with an aromatic polycarbonate at standard processing temperature.
Claims16
A composition comprising an admixture of (a) ##STR8## wherein:
- R is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;
- R.sup.1 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;
- the weight average molecular weight of (a) being from about 22,400 to 100,000;
- W is selected from divalent hydrocarbon radicals, --S--, --S--S--, --O--, ##STR9## n and n.sup.1 are independently selected from integers having a value of from 0 to 4 inclusive;
- b is either zero or one;
- X is an aliphatic group of about 6 to 18 carbon atoms, inclusive;
- d is from about 2 to 30 mole percent of the total units c+d;
- and
- (b) an effective amount of a near infra red stabilizing screener.
6 more elements
Dependencies are inferred from the claim text.