| 摘要 |
The present invention is directed to unconsolidated surface material comprising rubber particles, a color coating covering the rubber particles; and a polymer coating covering the color coating. The unconsolidated surface material is made by mixing rubber particles with a colorant to color coat the rubber particles thereby forming colored rubber particles and adding an emulsion polymer to the colored rubber particles to coat the colored rubber particles with the emulsion polymer to form a protective film around the colored rubber particles. The unconsolidated surface material may be used as synthetic mulch or as a playground safety surface.
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