Highly antioxidant olefinic resin composition
AssigneeSumitomo Chemical Company, Limited
InventorsKozo Kotani, Taiichi Sakaya
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Abstract
A highly antioxidant resin composition containing a resin, a solution of a hypophosphite compound in an organic solvent, a heat stabilizer and a hindered amine base weathering stabilizer, which has improved heat stability and weather resistance. The hypophosphite compound is preferably dissolved in a polyvalent alcohol having a molecular weight of not more than 50,000.
Claims29
A highly antioxidant resin composition, comprising an olefin polymer, a solution of a hypophosphite compound in an organic solvent selected from the group consisting of a polyhydric alcohol having a weight average molecular number of not more than 50,000, a polyamine, and an aprotic polar solvent, a heat stabilizer selected from the group consisting of a compound having a 2,6-dialkylphenol moiety, a compound having a 2-alkylphenol moiety, a sulfur-containing compound having a thiol or thioether linkage containing a divalent sulfur atom, and a compound having a phosphite ester linkage containing a trivalent phosphorus atom, and a hindered amine base weathering stabilizer.
Dependencies are inferred from the claim text.