| 摘要 |
Asphalt/polymer fibers include, by weight, 30% to 85% polymeric material and 15% to 70% asphaltic material, where the polymeric material has a melt flow index of no more than about 35 grams/10 minutes. Preferably, the combination of polymeric material and asphaltic material has a melt flow index of from 80 grams/10 minutes to 800 grams/10 minutes. The asphaltic material is preferably asphalt having a softening point of from 82 DEG C. to 177 DEG C. The polymeric material is preferably a polymer selected from polypropylene, polyethylene, polystyrene, polyesters, ethylene copolymers, acrylates, methacrylates, and mixtures of these polymers. The organic fibers of asphalt/polymer may be intermingled with mineral reinforcing fibers and formed into products such as mats.
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