| abstract |
The present invention relates to a stabilizer composition fornan organic polymer material, which contains (a) a compound of thenformula (1)n nwherein R 1 is alkyl having 1 to 6 carbon atoms or alkenyl having 2 ton6 carbon atoms, and R 2 , R 3 , R 4 and R 5 are the same or different and eachnis hydrogen atom or alkyl having 1 to 4 carbon atoms; and (b) at leastnone member selected from the group consisting of a phenolic antioxidantnand a phosphorus antioxidant at specific proportions. By the use ofnthe stabilizer composition of the present invention as a stabilizernfor an organic polymer material, a stabilized organic polymer materialncomposition superior in heat resistance, and particularly, stabilitynduring processing can be provided. |