| 摘要 |
<p>PCT No. PCT/EP91/00006 Sec. 371 Date Sep. 4, 1991 Sec. 102(e) Date Sep. 4, 1991 PCT Filed Jan. 4, 1991 PCT Pub. No. WO91/10486 PCT Pub. Date Jul. 25, 1991.Material for the paving of rinks suitable for skating with blade-skates, of synthetic type, characterized in that it exhibits a chemical composition gradient between the upper skating surface (A), consisting of hydrocarbons having a melting point of 30 degrees-130 degrees C., and the innermost surface (B) consisting of polymers having high mechanical properties and low brittling point.</p> |
