| 摘要 |
PROBLEM TO BE SOLVED: To provide a composition that has excellent stability at a room temperature and also has sufficiently high polymerization properties, and provide a less colored polymer obtained from the composition.SOLUTION: A composition contains (A) a trivalent phosphorus compound, (B) boron trihalide, and (C) an epoxy compound, wherein the (A) trivalent phosphorus compound and (B) boron trihalide at least partially form a complex. |
