| 摘要 |
The present invention relates to beads comprising a polymer of a vinylaromatic compound, an expanding agent and at least 0.2 % by weight based on the weight of the uncoated bead, of a triazine derivative. More in particular the present invention relates to beads comprising a polymer of a vinylaromatic compound, an expanding agent and a coating containing a triazine derivative, to expanded articles prepared therefrom and to a process for the preparation of said beads. In particular the present invention relates to such beads wherein the polymer of a vinylaromatic compound is polystyrene. |
