| 摘要 |
<p>This sole for shoes is formed from a composition which contains: a rubber component that contains a natural rubber and/or an isoprene rubber; silica that is blended in an amount of 35-60 parts by mass per 100 parts by mass of the rubber component; and a primary alkyl amine having 12 or more carbon atoms. It is preferable that the primary alkyl amine is an amine compound having 12-20 carbon atoms and 3 parts by mass or more of the primary alkyl amine having 12-20 carbon atoms is contained per 100 parts by mass of the rubber component. This sole for shoes has an adequate hardness, and additionally has a relatively high strength.</p> |
