| abstract |
It contains one or more kinds of phosphoric acid esters represented by the following general formula (1), and the total content of phosphoric acid esters of n = 1, 2, 3, 4 and 5 in the aforementioned phosphoric acid esters is 99 mass % Or more and 100% by mass or less, and the content of the phosphoric acid ester represented by the following general formula (1) at n = 1 in the total amount of the phosphoric acid esters is 60% by mass or more and less than 70% by mass Flame retardant composition. (In formula (1), R 1 and R 2 each independently represent a hydrogen atom or a methyl group, and n represents a number of 1, 2, 3, 4, 5, 6 or 7). |