| 摘要 |
<p>A track for equestrian sports and the like, comprising a base layer of compacted polymeric particles, the majority of which have a size in the range from 20-60 mm, an intermediate layer overlying the base layer and comprising compacted polymeric granules whose mean particle size is in a range from 3-25 mm and a top layer comprising finely divided composite particles formed from a thermoplastic polymer, a finely divided filler material such as sand and a wax-based binder. The invention also provides a method of making a particulate material which comprises blending a polymer-coated finely divided filler material with wax and a particulate elastomer, in the presence of an organic solvent.</p> |
