| abstract |
There is provided a heat stabilizer composition which does not cause odor of phosphorus antioxidant and a synthetic resin composition using the same. 100 parts by mass of a phosphorus-based antioxidant having a phosphite structure, and 100 parts by mass of the following general formulas (1), Wherein R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom or a hydrocarbon group of 1 to 10 carbon atoms, a represents an integer of 0 to 2, 2, the plurality of R < 3 > s may be the same or different, and the amount of the phenol-based antioxidant is 0.001 to 10 parts by mass. |