Patent ID: 8030381
Filing Date: 2011-10-04
Classification: C08K

Abstract:
1. A granular additive composition comprising 5 to 70% by weight of calcium stearate having a water content of 2.1 to 2.7%, 5 to 50% by weight of a sulfur-based compound represented by the formula (1), and a phenol-based compound selected from the group consisting of 3,9-bis[2-{3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, bis{3-(3-t-butyl-4-hydroxy-5-methylphenyl) propionic acid} triethylene glycol ester, and tetrakis {3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionic acid} pentaerythrityl ester, wherein an infrared absorption spectrum obtained by measuring the composition has a maximum absorption peak A in which absorbance in a range of a wave number 1540 cm −1 to 1543 cm −1 is a maximum value, and a maximum absorption peak B in which absorbance in a range of a wave number 1575 cm −1 to 1583 cm −1 is a maximum value, and the absorbance of the peak A and the absorbance of the peak B are a maximum value and a next maximum value as absorbance of a maximum absorption peak in a range of a wave number 1540 cm −1 to 1583 cm −1 , where in the formula (1), R 1 represents an alkyl group having a carbon number of 12 to 18, Y represents a single bond, or a —C 2 H 4 CO 2 — group, m represents an integer of 1 to 4, and Z represents a m-hydric alcohol residue having a carbon number of 5 to 18.