STABILIZER COMPOSITION FOR ORGANIC POLYMERIC MATERIALS CONTAINING 6-HYDROXYCHROMAN COMPOUNDS AND ORGANIC POLYMERIC MATERIAL COMPOSITIONS

摘要

A stabilizer composition for organic polymeric materials, comprising (a) a compound represented by general formula (1) (wherein R<1> is C1-C6 alkyl or C2-C6 alkenyl; and R<2>, R<3>, R<4> and R<5> are each hydrogen or C1-C4 alkyl) and (b) at least one member selected from the group consisting of phenolic antioxidants and phosphorus antioxidants at a specific ratio. The application of the stabilizer composition to organic polymeric materials can give stabilized organic polymeric material compositions excellent in not only heat resistance but also stability in processing.