| 摘要 |
<p>An eraser excellent in erasing performance even when applied under a weak rubbing force, which is made from a chlorine-free styrenic or olefinic thermoplastic eleastomer as the base material so that it can be incinerated without emitting any toxic chlorine-containing gas. The first embodiment thereof comprises a styrenic thermoplastic elastomer, an oily matter and a gelling agent. The second embodiment comprises a styrenic thermoplastic elastomer and a styrenic oligomer. The third embodiment comprises an olefinic thermoplastic elastomer and has a number of microvoids therein.</p> |
