| 摘要 |
<p>A polymer formulation of the kind comprising a polymer such as PVC or thermosetting polyester acrylic or epoxy and soft filler materials in an amount of 50 - 300 parts per 100 of resin, contains 0.1 - 5% of an abrasion-resistant additive selected from tabular alumina, calcined unground alumina having a median crystallite size of at least 5.5 mu m, and calcined and ground alumina having a median particle size of at least 5.5 mu m. Shaped products and coating films formed from such formulations are also included.</p> |
