Asphalt-containing organic fibers

Details Asphalt-containing organic fibers Asphalt-containing organic fibers

1997-10-31

1999-04-27

Edwards, Newton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

442 65, D02G 300

Patent

active

058979514

ABSTRACT:
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.degree. C. to 177.degree. 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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