| 摘要 |
<p>THE INVENTION RELATES TO A POLYMER-BONDED PENCIL LEAD FOR WRITING, DRAWING OR PAINTING DEVICES, IN PARTICULAR FOR LEAD PENCILS OR COLORED PENCILS, COMPRISING A POLYMER BINDER, AT LEAST ONE WAX AND AT LEAST ONE FILLER, WHEREIN THE PENCIL LEAD FURTHER COMPRISES 0.1 TO 5 WT. -% PALM OIL.</p> |
