Impact modified polycarbonate composition
AssigneeGeneral Electric Company
InventorPing Y. Liu
Life of this patent
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Abstract
A composition comprising (a) a major amount of an aromatic polycarbonate; (b) a minor amount of an impact modifier comprising (i) an amorphous polyester comprising units derived from 1,4-cyclohexane dimethanol and aromatic dicarboxylic acid or ester forming derivative thereof and (ii) an olefin-acrylate copolymeric resin, the components b(i) and b(ii) in such quantities that the said composition had the following properties (a) thick section notched Izod impact resistance better than a, (b) double gate Izod impact resistance of a weld line better than a+b(i) and a+b(ii), (c) better resistance against basic organic solution than a+b(i) as measured by notched Izod in thin section.
Claims16
A composition comprising
- a. a major amount of an aromatic polycarbonate;
- b. a minor amount of an impact modifier comprising
- (i) an amorphous polyester comprising units derived from 1,4-cyclohexane dimethanol and aromatic dicarboxylic acid or ester forming derivative thereof and
- (ii) an olefin-acrylate copolymeric resin, the components b(i) and b(ii) in such quantities that the said composition has the foll owing properties
- (a) thick section notched Izod impact resistance or ductility at break higher than a,
- (b) double gate Izod impact resistance or ductility at break of a weld line higher than a+b(i) or a+b(ii),
- (c) higher resistance against basic organic solution than a+b(i) as measured by notched Izod impact resistance or ductility at break in thin section.
Dependencies are inferred from the claim text.