| 摘要 |
<p>The present invention concerns a strip of impregnated and compressed foam material with delayed restoration which is rolled up into a roll (2), preferably for purposes of sealing, and proposes for purposes in particular of an improved sealing, that the broad side of the roll (2) be provided with a liquid-impermeable layer (7) which adheres to the flank sides of the strip and which has an extensibility corresponding to the amount of restoration and has longitudinally a spiral-shaped separation line (L) corresponding to the strip-winding-joint (8). (Main Figure: Figure 1)</p> |
