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US 5,326,799 AGranted
Composition
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.
Claims4
A composition comprising an admixture of ##STR8## wherein:
- R is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbynoxy radicals;
- R.sup.1 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;
- 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;
- the weight average molecular weight of (a) being from about 22,400 to 100,000 and
- (b) an amount, effective to stabilize the composition against ultraviolet radiation effects, of an ultraviolet screener additive which is incompatible with an aromatic polycarbonate at ordinary processing temperature.
5 more elements
Dependencies are inferred from the claim text.