| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a petroleum resin granular material that has excellent filling property and flowability in transportation, suppresses its crushing, and reduces the occurrence of powder, fine and the like.SOLUTION: A petroleum resin granular material has a bowl shape, with the bowl-shaped bottom face having an average diameter of 4.5-5.5 mm and average height of 2-2.8 mm, the average height/the average diameter being in the range of 0.4-0.6.</p> |
