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US 4,309,514 AGranted
Molding compositions comprising polyphenylene ether and hydrogenated radial block copolymer of vinyl aromatic compound and diene rubber
AssigneeGeneral Electric Company
InventorGim F. Lee, Jr.
Life of this patent
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Abstract
Thermoplastic molding compositions containing polyphenylene ether as the principal structural polymer provide moldings of superior processability and high impact resistance when they contain a minor amount of a selectively hydrogenated radial teleblock copolymer comprising vinyl aromatic compound blocks and saturated rubber blocks.
Claims6
A thermoplastic molding composition which comprises an intimate admixture of resinous components consisting essentially of:
- (a) a polyphenylene ether resin;
- and
- (b) a hydrogenated radial teleblock copolymer comprising a vinyl aromatic compound, a saturated diene rubber and a coupling agent, said polyphenylene ether and said teleblock copolymer copolymer being present in a weight ratio of 99:1 to 50:50.
Dependencies are inferred from the claim text.