| 摘要 |
PCT No. PCT/AU92/00407 Sec. 371 Date May 10, 1994 Sec. 102(e) Date May 10, 1994 PCT Filed Aug. 4, 1992 PCT Pub. No. WO93/02985 PCT Pub. Date Feb. 18, 1993.A lightweight aggregate comprising free-flowing particles of a polymer foam coated with a binding agent having dispersed therein, in total, at least 10% by weight thereof of one or more transition metal ions. |
