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US 4,049,751 AGranted
Extraction resistant polyolefin stabilizers
AssigneeDart Industries Inc.
InventorsFrank Scardiglia, Kornel Dezso Kiss
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Abstract
A hindered phenolic antioxidant stablizer for polyolefins is rendered extraction resistant by complexing it with an agent containing complexing groups derived from N-vinyl-2-pyrrolidone or a N-dialkyl substituted amino alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid.
Claims14
A composition of matter which comprises a complex of a hindered phenolic antioxidant and a high molecular weight polymeric nitrogenous complexing agent having complexing group derived from N-vinyl-2-pyrrolidone.
Dependencies are inferred from the claim text.